A829 4340 - ASTM A829/A829M-2025

Grade	A829 4340
Corresponding Standard	ASTM A829/A829M-2025 Standard Specification for Alloy Structural Steel Plates
Classification	Alloy Steel

A829 4340 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo
Minimum Value	0.38	0.15	0.6	-	-	0.7	1.65	0.2
Maximum Value	0.43	0.35	0.8	0.03	0.04	0.9	2	0.3

A829 4340 Mechanical Properties

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