Grade 9 - ASTM A334/A334M-2004(R2021)

Grade	Grade 9
Corresponding Standard	ASTM A334/A334M-2004(R2021) Seamless and Welded Carbon and Alloy-Steel Tubes for Low-Temperature Service
Classification	Alloy Steel

Grade 9 Chemical Element Composition Content (%)

Component	C	Mn	P	S	Ni	Cu
Minimum Value	-	0.4	-	-	0.6	0.75
Maximum Value	0.2	1.06	0.025	0.025	2.24	1.25

Grade 9 Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
≥435	≥315	≥28	-75°C ≥18

Grade9 Corresponding Standards(Same grade name, different standards)

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