A765 Grade III - ASTM A765/A765M-2024

Grade	A765 Grade III
Corresponding Standard	ASTM A765/A765M-2024 Standard Specification for Carbon Steel and Low-Alloy Steel Pressure-Vessel-Component Forgings with Mandatory Toughness Requirements
Classification	Alloy Steel

A765 Grade III Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V	Al
Minimum Value	-	0.15	-	-	-	-	3.3	-	-	-	-
Maximum Value	0.2	0.35	0.9	0.02	0.02	0.2	3.8	0.35	0.06	0.05	0.05

A765 Grade III Mechanical Properties

	Test Temperature	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Impact Energy Absorption KV2 J
		485~655	260	≥22	≥35
	-100℃					≥20

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