70th Edition, October 22, 1970
Specification for Carbon Steel Wire for Zigzag and Square-Form Springs
Includes all amendments and changes through Reaffirmation Notice , June 1, 2016
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Description / Abstract:
Requirements for patented cold drawn plain carbon steel round wire in three grades of tensile strength. Chemical composition, standard sizes and tolerances, methods of testing, mechanical properties and details of packing and identification.