Grade A681 Type A5
USA UNS T30105
AISI
American Iron and Steel Institute
A5
Corresponding Standard ASTM A681-2008(R2015)
Standard Specification for Tool Steels Alloy
Classification Tool Steel
A681 Type A5 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo More
Minimum Value 0.95 0.1 2.8 - - 0.9 0.9 Ni+Cu≤0.75
Maximum Value 1.05 0.7 3.2 0.03 0.03 1.4 1.4

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