Grade 3 - ASTM A334/A334M-2004(R2021)

Grade	Grade 3
Corresponding Standard	ASTM A334/A334M-2004(R2021) Seamless and Welded Carbon and Alloy-Steel Tubes for Low-Temperature Service
Classification	Alloy Steel

Grade 3 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Ni
Minimum Value	-	0.18	0.31	-	-	3.18
Maximum Value	0.19	0.37	0.64	0.025	0.025	3.82

Grade 3 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	-100°C ≥18

Approximate Comparison Table Processing Titanium and Titanium Alloys

China	United States		International Organization for Standardization	Germany
GB	ASTM	UNS	ISO	DIN EN/DIN	W-Nr.
TA3	Grade 3	R50550	Grade 3(Ti≥99.14)	Ti4(Ti≥99.23)	3.7065

Grade3 Corresponding Standards(Same grade name, different standards)

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