Grade 3 R50550 - ASTM B348-2013

Grade	Grade 3
USA UNS	R50550
Corresponding Standard	ASTM B348-2013 Standard Specification for Titanium and Titanium Alloy Bars and Billets
Classification	Titanium and Titanium Alloys
Properties	Corrosion Resistance Low-Temperature Toughness Impact Toughness Weldability

Grade 3 Chemical Element Composition Content (%)

Component	Fe	C	N	H	O	Other Individual	Other Total
Minimum Value	-	-	-	-	-	-	-
Maximum Value	0.3	0.08	0.05	0.015	0.35	0.1	0.4

"Other individual elements or other totals": The chemical composition includes elements not specified in the table. Analysis should only be conducted if these elements are suspected to be present, or if routine analysis suggests that their content may exceed the prescribed limits.

Grade 3 Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Reduction of Area ψ %	Hardness HBW
Bars, billets; d≤76; S≤64.5	Annealing	≥450	≥380	≥18	≥30

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)

1	ASTM B348-2013
	Grade 3 R50550
2	ASTM B265-2015
	Grade 3 R50550
3	ASTM A646/A646M-2024
	Grade 3 4620
4	ASME SA-334/SA-334M-2023
	Grade 3
5	ASTM A334/A334M-2004(R2021)
	Grade 3
6	ASME SA-333/SA-333M-2023
	grade 3

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!