Standard Speciﬁcation for Tool Steels Alloy1
This trendy is issued beneath the ﬁxed designation a 681; the quantity right now following the designation suggests the 12 months of unique adoption or, within the case of revision, the yr of closing revision. Various in parentheses indicates the year of closing reapproval. A superscript epsilon (e) suggests an article trade since the final revision or reapproval.
This trend has been approved to be used by means of groups of the department of protection.
Click below to get ASTM A 681 – 94 International standard
You can also get ASTM A 679 A 679M – 00 International standard