Standard Specification for
Steel Wire, Cold-Drawn, for Coiled-Type Springs1
This popular is issued below the constant designation a 407; the range immediately following the designation suggests the 12 months of
original adoption or, in the case of revision, the yr of remaining revision. quite a number in parentheses indicates the 12 months of last reapproval. a
superscript epsilon (e) shows a piece of writing change because the last revision or reapproval
click below to download Astm A 407 – 93 (Reapproved 2004) pdf free
click here to download Astm A 403M – 04 pdf free