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USA UNS G51150
AISI
American Iron and Steel Institute		 5115
Corresponding Standard ASTM A29/A29M-2005
General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
Classification Alloy Steel
Properties Forgability
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Cu B Al
Minimum Value 0.13 0.15 0.7 - - 0.7 - 0.0005 -
Maximum Value 0.18 0.35 0.9 0.035 0.04 0.9 0.3 0.003 0.05
1 Approximate Comparison Table Structural Alloy Steel
China Taiwan, China Japan South Korea United States Germany France Russia United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS DIN EN/DIN W-Nr. NF EN/NF GOST BS EN/BS
15Cr A20152 SCr415 SCr415 SCr415 5115 G51150 15Cr3 1.7015 12C3 15Х 523A14
523M15
2 Approximate Comparison Table Structural Alloy Steel
China United States Germany France Russia Sweden
GB ISC ASTM/AISI UNS DIN EN/DIN W-Nr. NF EN/NF GOST SS14
15CrMn A22152 5115 G51150 16MnCr5 1.7131 16MC5 15ХГ 2511
3 Approximate Comparison Table Cold Heading Steel
China United States Germany Russia
GB ISC ASTM/AISI UNS DIN EN/DIN W-Nr. GOST
ML15Cr A20154 5115 G51150 15Cr2 1.7015 15Х

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