Grade 7 - ASTM A334/A334M-2004(R2021)

Grade	Grade 7
Corresponding Standard	ASTM A334/A334M-2004(R2021) Seamless and Welded Carbon and Alloy-Steel Tubes for Low-Temperature Service
Classification	Alloy Steel

Grade 7 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Ni
Minimum Value	-	0.13	-	-	-	2.03
Maximum Value	0.19	0.32	0.9	0.025	0.025	2.57

Grade 7 Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW	Impact Energy Absorption KV2 J
≥450	≥240	≥30	HRB: ≤90 HB: ≤190	-75°C ≥18

Approximate Comparison Table Processing Titanium and Titanium Alloys

China	Japan	United States	International Organization for Standardization	Germany		France	United Kingdom
GB	JIS	ASTM	ISO	DIN EN/DIN	W-Nr.	NF EN/NF	BS EN/BS
TA9	Class 13	Grade 7	Ti-Pd0.2(c)	Ti3Pd	3.7255	Ti-Pd0.2(c)	Ti-Pd0.2(c)

Grade7 Corresponding Standards(Same grade name, different standards)

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