USA UNS G15520
AISI
American Iron and Steel Institute
1552
Old Grade
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 Mn P S More
Minimum Value 0.47 1.2 - - ①②③④⑤
Maximum Value 0.55 1.5 0.04 0.05
Approximate Comparison Table structural alloy steel
China United States Germany France Russia
GB ISC ASTM DIN EN/DIN W-Nr. NF EN/NF GOST
50Mn2 A00502 1552 50Mn7 1.0913 55M5 50Г2

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