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Home Material ASTM A322-2013(R2018)
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Grade A322 4340
USA UNS G43400
Corresponding Standard ASTM A322-2013(R2018)
Steel Bars, Alloy, Standard Grades
Classification Alloy Steel
A322 4340 Chemical Element Composition Content (%)
Component C Si ① Mn P S Cr Ni Cu ② Mo
Minimum Value 0.38 0.15 0.6 - - 0.7 1.65 - 0.2
Maximum Value 0.43 0.35 0.8 0.035 0.04 0.9 2 0.35 0.3
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
40CrNiMoA
45CrNiMoVA 		A50403
A51453 		SNCM439 SNCM439 SNCM439 4340 G43400 36CrNiMo4 1.6511 40NCD3 20ХНМ
45ХН2МФА 		816M40

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