A217 Grade C12A J84090 C12A - ASTM A217/A217M-2025

Grade	A217 Grade C12A
USA UNS	J84090
Other Names
Corresponding Standard	ASTM A217/A217M-2025 Standard Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service
Classification	Cast Steel

A217 Grade C12A Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	Ti ^*	V	Nb	Zr ^*	Al ^*
Minimum Value	0.08	0.2	0.3	-	-	8	-	0.85	0.03	-	0.18	0.06	-	-
Maximum Value	0.12	0.5	0.6	0.025	0.01	9.5	0.4	1.05	0.07	0.01	0.25	0.1	0.01	0.02

* Residual Elements.

A217 Grade C12A Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %
585~760	≥415	≥18	≥45

A217GradeC12A Corresponding Standards(Same grade name, different standards)

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