
Extension springs absorb and store energy as well as create a resistance to a pulling force. Extension Springs are attached at both ends to other components. When these components move apart, the extension spring will pull components together again. Learn more about Extension Springs and How to Measure an Extension Spring.
EI 012B 06 S 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.03            | 
                                                                                        0.012            | 
                                                                                        0.3            | 
                                                                                        377.8            | 
                                                                                        0.3778            | 
                                                                                        0.833            | 
                                                                                        3.705            | 
                                                                                        143            | 
                                                                                        14.3            | 
                                                                                        0.143            | 
                                                                                        0.0143            | 
                                                                                        0.8            | 
                                                                                        1.4            | 
                                                                                        0.14            | 
                                                                                        4.61            | 
                                                                                        1.815            | 
                                                                                        46.1            | 
                                                                                        37.8            | 
                                                                                        0.0378            | 
                                                                                        0.0833            | 
                                                                                        0.371            | 
                                                                                        2.223            | 
                                                                                        0.875            | 
                                                                                        22.23            | 
                                                                                        
                              SS
                                        | 
              
EI 012B 06 M 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.03            | 
                                                                                        0.012            | 
                                                                                        0.3            | 
                                                                                        453.6            | 
                                                                                        0.4536            | 
                                                                                        1            | 
                                                                                        4.448            | 
                                                                                        171            | 
                                                                                        17.1            | 
                                                                                        0.171            | 
                                                                                        0.0171            | 
                                                                                        0.96            | 
                                                                                        1.68            | 
                                                                                        0.168            | 
                                                                                        4.61            | 
                                                                                        1.815            | 
                                                                                        46.1            | 
                                                                                        45.4            | 
                                                                                        0.0454            | 
                                                                                        0.1            | 
                                                                                        0.445            | 
                                                                                        2.223            | 
                                                                                        0.875            | 
                                                                                        22.23            | 
                                                                                        
                              MW
                                        | 
              
EI 012B 05 S 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.03            | 
                                                                                        0.012            | 
                                                                                        0.3            | 
                                                                                        377.8            | 
                                                                                        0.3778            | 
                                                                                        0.833            | 
                                                                                        3.705            | 
                                                                                        179            | 
                                                                                        17.9            | 
                                                                                        0.179            | 
                                                                                        0.0179            | 
                                                                                        1            | 
                                                                                        1.75            | 
                                                                                        0.175            | 
                                                                                        3.81            | 
                                                                                        1.5            | 
                                                                                        38.1            | 
                                                                                        37.8            | 
                                                                                        0.0378            | 
                                                                                        0.0833            | 
                                                                                        0.371            | 
                                                                                        1.905            | 
                                                                                        0.75            | 
                                                                                        19.05            | 
                                                                                        
                              SS
                                        | 
              
EI 012B 05 M 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.03            | 
                                                                                        0.012            | 
                                                                                        0.3            | 
                                                                                        453.6            | 
                                                                                        0.4536            | 
                                                                                        1            | 
                                                                                        4.448            | 
                                                                                        214            | 
                                                                                        21.4            | 
                                                                                        0.214            | 
                                                                                        0.0214            | 
                                                                                        1.2            | 
                                                                                        2.1            | 
                                                                                        0.21            | 
                                                                                        3.81            | 
                                                                                        1.5            | 
                                                                                        38.1            | 
                                                                                        45.4            | 
                                                                                        0.0454            | 
                                                                                        0.1            | 
                                                                                        0.445            | 
                                                                                        1.905            | 
                                                                                        0.75            | 
                                                                                        19.05            | 
                                                                                        
                              MW
                                        | 
              
EI 012B 04 S 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.03            | 
                                                                                        0.012            | 
                                                                                        0.3            | 
                                                                                        377.8            | 
                                                                                        0.3778            | 
                                                                                        0.833            | 
                                                                                        3.705            | 
                                                                                        223            | 
                                                                                        22.3            | 
                                                                                        0.223            | 
                                                                                        0.0223            | 
                                                                                        1.25            | 
                                                                                        2.19            | 
                                                                                        0.219            | 
                                                                                        3.112            | 
                                                                                        1.225            | 
                                                                                        31.12            | 
                                                                                        37.8            | 
                                                                                        0.0378            | 
                                                                                        0.0833            | 
                                                                                        0.371            | 
                                                                                        1.588            | 
                                                                                        0.625            | 
                                                                                        15.88            | 
                                                                                        
                              SS
                                        | 
              
EI 012B 04 M 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.03            | 
                                                                                        0.012            | 
                                                                                        0.3            | 
                                                                                        453.6            | 
                                                                                        0.4536            | 
                                                                                        1            | 
                                                                                        4.448            | 
                                                                                        268            | 
                                                                                        26.8            | 
                                                                                        0.268            | 
                                                                                        0.0268            | 
                                                                                        1.5            | 
                                                                                        2.63            | 
                                                                                        0.263            | 
                                                                                        3.112            | 
                                                                                        1.225            | 
                                                                                        31.12            | 
                                                                                        45.4            | 
                                                                                        0.0454            | 
                                                                                        0.1            | 
                                                                                        0.445            | 
                                                                                        1.588            | 
                                                                                        0.625            | 
                                                                                        15.88            | 
                                                                                        
                              MW
                                        | 
              
EI 012B 03 S 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.03            | 
                                                                                        0.012            | 
                                                                                        0.3            | 
                                                                                        377.8            | 
                                                                                        0.3778            | 
                                                                                        0.833            | 
                                                                                        3.705            | 
                                                                                        298            | 
                                                                                        29.8            | 
                                                                                        0.298            | 
                                                                                        0.0298            | 
                                                                                        1.67            | 
                                                                                        2.92            | 
                                                                                        0.292            | 
                                                                                        2.413            | 
                                                                                        0.95            | 
                                                                                        24.13            | 
                                                                                        37.8            | 
                                                                                        0.0378            | 
                                                                                        0.0833            | 
                                                                                        0.371            | 
                                                                                        1.27            | 
                                                                                        0.5            | 
                                                                                        12.7            | 
                                                                                        
                              SS
                                        | 
              
EI 012B 03 M 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.03            | 
                                                                                        0.012            | 
                                                                                        0.3            | 
                                                                                        453.6            | 
                                                                                        0.4536            | 
                                                                                        1            | 
                                                                                        4.448            | 
                                                                                        357            | 
                                                                                        35.7            | 
                                                                                        0.357            | 
                                                                                        0.0357            | 
                                                                                        2            | 
                                                                                        3.5            | 
                                                                                        0.35            | 
                                                                                        2.413            | 
                                                                                        0.95            | 
                                                                                        24.13            | 
                                                                                        45.4            | 
                                                                                        0.0454            | 
                                                                                        0.1            | 
                                                                                        0.445            | 
                                                                                        1.27            | 
                                                                                        0.5            | 
                                                                                        12.7            | 
                                                                                        
                              MW
                                        | 
              
EI 012B 02 S 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.03            | 
                                                                                        0.012            | 
                                                                                        0.3            | 
                                                                                        377.8            | 
                                                                                        0.3778            | 
                                                                                        0.833            | 
                                                                                        3.705            | 
                                                                                        357            | 
                                                                                        35.7            | 
                                                                                        0.357            | 
                                                                                        0.0357            | 
                                                                                        2            | 
                                                                                        3.5            | 
                                                                                        0.35            | 
                                                                                        2.078            | 
                                                                                        0.818            | 
                                                                                        20.78            | 
                                                                                        37.8            | 
                                                                                        0.0378            | 
                                                                                        0.0833            | 
                                                                                        0.371            | 
                                                                                        1.113            | 
                                                                                        0.438            | 
                                                                                        11.13            | 
                                                                                        
                              SS
                                        | 
              
EI 012B 02 M 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.03            | 
                                                                                        0.012            | 
                                                                                        0.3            | 
                                                                                        453.6            | 
                                                                                        0.4536            | 
                                                                                        1            | 
                                                                                        4.448            | 
                                                                                        429            | 
                                                                                        42.9            | 
                                                                                        0.429            | 
                                                                                        0.0429            | 
                                                                                        2.4            | 
                                                                                        4.2            | 
                                                                                        0.42            | 
                                                                                        2.078            | 
                                                                                        0.818            | 
                                                                                        20.78            | 
                                                                                        45.4            | 
                                                                                        0.0454            | 
                                                                                        0.1            | 
                                                                                        0.445            | 
                                                                                        1.113            | 
                                                                                        0.438            | 
                                                                                        11.13            | 
                                                                                        
                              MW
                                        | 
              
EI 012B 01 S 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.03            | 
                                                                                        0.012            | 
                                                                                        0.3            | 
                                                                                        377.8            | 
                                                                                        0.3778            | 
                                                                                        0.833            | 
                                                                                        3.705            | 
                                                                                        477            | 
                                                                                        47.7            | 
                                                                                        0.477            | 
                                                                                        0.0477            | 
                                                                                        2.67            | 
                                                                                        4.68            | 
                                                                                        0.468            | 
                                                                                        1.664            | 
                                                                                        0.655            | 
                                                                                        16.64            | 
                                                                                        37.8            | 
                                                                                        0.0378            | 
                                                                                        0.0833            | 
                                                                                        0.371            | 
                                                                                        0.953            | 
                                                                                        0.375            | 
                                                                                        9.53            | 
                                                                                        
                              SS
                                        | 
              
EI 012B 01 M 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.03            | 
                                                                                        0.012            | 
                                                                                        0.3            | 
                                                                                        453.6            | 
                                                                                        0.4536            | 
                                                                                        1            | 
                                                                                        4.448            | 
                                                                                        571            | 
                                                                                        57.1            | 
                                                                                        0.571            | 
                                                                                        0.0571            | 
                                                                                        3.2            | 
                                                                                        5.6            | 
                                                                                        0.56            | 
                                                                                        1.664            | 
                                                                                        0.655            | 
                                                                                        16.64            | 
                                                                                        45.4            | 
                                                                                        0.0454            | 
                                                                                        0.1            | 
                                                                                        0.445            | 
                                                                                        0.953            | 
                                                                                        0.375            | 
                                                                                        9.53            | 
                                                                                        
                              MW
                                        | 
              
EI 010B 04 M 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.025            | 
                                                                                        0.01            | 
                                                                                        0.25            | 
                                                                                        272.2            | 
                                                                                        0.2722            | 
                                                                                        0.6            | 
                                                                                        2.669            | 
                                                                                        100            | 
                                                                                        10            | 
                                                                                        0.1            | 
                                                                                        0.01            | 
                                                                                        0.56            | 
                                                                                        0.98            | 
                                                                                        0.098            | 
                                                                                        4.077            | 
                                                                                        1.605            | 
                                                                                        40.77            | 
                                                                                        22.7            | 
                                                                                        0.0227            | 
                                                                                        0.05            | 
                                                                                        0.222            | 
                                                                                        1.588            | 
                                                                                        0.625            | 
                                                                                        15.88            | 
                                                                                        
                              MW
                                        | 
              
EI 011B 06 M 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.028            | 
                                                                                        0.011            | 
                                                                                        0.28            | 
                                                                                        362.9            | 
                                                                                        0.3629            | 
                                                                                        0.8            | 
                                                                                        3.559            | 
                                                                                        107            | 
                                                                                        10.7            | 
                                                                                        0.107            | 
                                                                                        0.0107            | 
                                                                                        0.6            | 
                                                                                        1.05            | 
                                                                                        0.105            | 
                                                                                        5.321            | 
                                                                                        2.095            | 
                                                                                        53.21            | 
                                                                                        31.8            | 
                                                                                        0.0318            | 
                                                                                        0.07            | 
                                                                                        0.311            | 
                                                                                        2.223            | 
                                                                                        0.875            | 
                                                                                        22.23            | 
                                                                                        
                              MW
                                        | 
              
EI 011B 05 S316 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.028            | 
                                                                                        0.011            | 
                                                                                        0.28            | 
                                                                                        226.3            | 
                                                                                        0.2263            | 
                                                                                        0.499            | 
                                                                                        2.22            | 
                                                                                        109            | 
                                                                                        10.9            | 
                                                                                        0.109            | 
                                                                                        0.0109            | 
                                                                                        0.61            | 
                                                                                        1.07            | 
                                                                                        0.107            | 
                                                                                        3.739            | 
                                                                                        1.472            | 
                                                                                        37.39            | 
                                                                                        26.4            | 
                                                                                        0.0264            | 
                                                                                        0.0583            | 
                                                                                        0.259            | 
                                                                                        1.905            | 
                                                                                        0.75            | 
                                                                                        19.05            | 
                                                                                        
                              SS 316
                                        | 
              
EI 011B 05 S 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.028            | 
                                                                                        0.011            | 
                                                                                        0.28            | 
                                                                                        302.3            | 
                                                                                        0.3023            | 
                                                                                        0.6664            | 
                                                                                        2.964            | 
                                                                                        109            | 
                                                                                        10.9            | 
                                                                                        0.109            | 
                                                                                        0.0109            | 
                                                                                        0.61            | 
                                                                                        1.07            | 
                                                                                        0.107            | 
                                                                                        4.445            | 
                                                                                        1.75            | 
                                                                                        44.45            | 
                                                                                        26.4            | 
                                                                                        0.0264            | 
                                                                                        0.0583            | 
                                                                                        0.259            | 
                                                                                        1.905            | 
                                                                                        0.75            | 
                                                                                        19.05            | 
                                                                                        
                              SS
                                        | 
              
EI 011B 05 M 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.028            | 
                                                                                        0.011            | 
                                                                                        0.28            | 
                                                                                        362.9            | 
                                                                                        0.3629            | 
                                                                                        0.8            | 
                                                                                        3.559            | 
                                                                                        130            | 
                                                                                        13            | 
                                                                                        0.13            | 
                                                                                        0.013            | 
                                                                                        0.73            | 
                                                                                        1.28            | 
                                                                                        0.128            | 
                                                                                        4.445            | 
                                                                                        1.75            | 
                                                                                        44.45            | 
                                                                                        31.8            | 
                                                                                        0.0318            | 
                                                                                        0.07            | 
                                                                                        0.311            | 
                                                                                        1.905            | 
                                                                                        0.75            | 
                                                                                        19.05            | 
                                                                                        
                              MW
                                        | 
              
EI 010B 04 S316 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.025            | 
                                                                                        0.01            | 
                                                                                        0.25            | 
                                                                                        169.6            | 
                                                                                        0.1696            | 
                                                                                        0.374            | 
                                                                                        1.664            | 
                                                                                        84            | 
                                                                                        8.4            | 
                                                                                        0.084            | 
                                                                                        0.0084            | 
                                                                                        0.47            | 
                                                                                        0.82            | 
                                                                                        0.082            | 
                                                                                        3.383            | 
                                                                                        1.332            | 
                                                                                        33.83            | 
                                                                                        18.9            | 
                                                                                        0.0189            | 
                                                                                        0.0416            | 
                                                                                        0.185            | 
                                                                                        1.588            | 
                                                                                        0.625            | 
                                                                                        15.88            | 
                                                                                        
                              SS 316
                                        | 
              
EI 010B 05 S 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.025            | 
                                                                                        0.01            | 
                                                                                        0.25            | 
                                                                                        226.7            | 
                                                                                        0.2267            | 
                                                                                        0.4998            | 
                                                                                        2.223            | 
                                                                                        66            | 
                                                                                        6.6            | 
                                                                                        0.066            | 
                                                                                        0.0066            | 
                                                                                        0.37            | 
                                                                                        0.65            | 
                                                                                        0.065            | 
                                                                                        5.08            | 
                                                                                        2            | 
                                                                                        50.8            | 
                                                                                        18.9            | 
                                                                                        0.0189            | 
                                                                                        0.0416            | 
                                                                                        0.185            | 
                                                                                        1.905            | 
                                                                                        0.75            | 
                                                                                        19.05            | 
                                                                                        
                              SS
                                        | 
              
EI 010B 05 M 
                             | 
                                                                                        0.239            | 
                                                                                        0.094            | 
                                                                                        2.39            | 
                                                                                        0.025            | 
                                                                                        0.01            | 
                                                                                        0.25            | 
                                                                                        272.2            | 
                                                                                        0.2722            | 
                                                                                        0.6            | 
                                                                                        2.669            | 
                                                                                        79            | 
                                                                                        7.9            | 
                                                                                        0.079            | 
                                                                                        0.0079            | 
                                                                                        0.44            | 
                                                                                        0.77            | 
                                                                                        0.077            | 
                                                                                        5.08            | 
                                                                                        2            | 
                                                                                        50.8            | 
                                                                                        22.7            | 
                                                                                        0.0227            | 
                                                                                        0.05            | 
                                                                                        0.222            | 
                                                                                        1.905            | 
                                                                                        0.75            | 
                                                                                        19.05            | 
                                                                                        
                              MW
                                        | 
              
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