USA UNS H40280
SAE
Steel Number
4028H
Corresponding Standard SAE J 1268-2010
Hardenability Bands for Carbon and Alloy H Steels
Classification Alloy Steel
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.24 0.15 0.6 - 0.035 - - - 0.2
Maximum Value 0.3 0.35 1 0.03 0.05 0.2 0.25 0.35 0.3

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