USA UNS G51500
AISI
American Iron and Steel Institute
5150
Corresponding Standard ASTM A29/A29M-2012
Standard Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
Classification Alloy Steel
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo More
Minimum Value 0.48 0.15 0.7 - - 0.7 - - -
Maximum Value 0.53 0.35 0.9 0.035 0.04 0.9 0.25 0.35 0.06
Approximate Comparison Table Structural Alloy Steel
China Japan United States France Russia
GB ISC JIS ASTM/AISI UNS NF EN/NF GOST
50Cr A20502 SCr445 5150 G51500 50C4 50Х

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