Astm A 686 – 92 (Reapproved 1999) Pdf free download

Standard Specification for
Tool Steel, Carbon1

This standard is issued under the fixed designation A 686; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.