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USA UNS G61500
AISI
American Iron and Steel Institute		 6150
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 ① Mn P S Cr Ni ② Cu ② Mo ② V
Minimum Value 0.48 0.15 0.7 - - 0.8 - - - 0.15
Maximum Value 0.53 0.35 0.9 0.035 0.04 1.1 0.25 0.35 0.06 -
1 Approximate Comparison Table Structural Alloy Steel
China Taiwan, China Japan South Korea United States Germany France Russia Sweden United Kingdom
GB ISC CNS JIS KS ASTM/AISI UNS DIN EN/DIN W-Nr. NF EN/NF GOST SS14 BS EN/BS
50CrVA A23503 SUP10 SUP10 SPS6 6150 G61500 51CrV4
(50CrV4) 		1.8159 50CV4 50ХФА 2230 735A50
2 Approximate Comparison Table Spring Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard Russia Sweden United Kingdom
GB ISC CNS JIS KS AISI UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST SS14 BS EN/BS
50CrVA A23503 SUP10 SUP10 SPS6 6150 G61500 51CrV4 51CrV4 1.8159 50CrV4 51CrV4 1.8159 50ХФА 2230 735A50

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