TP 348 S34800 - ASTM A 632-2019

Grade	TP 348
USA UNS	S34800
Corresponding Standard	ASTM A632-2019(2025) Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service
Classification	Austenitic Stainless Steel

TP 348 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Co	Ta	More
Minimum Value	-	-	-	-	-	17	9	-	-	10C≤Nb+Ta≤1.10%
Maximum Value	0.08	1	2	0.045	0.03	19	13	0.2	0.1	10C≤Nb+Ta≤1.10%

TP 348 Mechanical Properties

diameter or thickness d or t mm	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
d≥3.2 or t≥0.38	≥515	≥205	≥35
d＜3.2 or t＜0.38	/	/	≥25

TP348 Corresponding Standards(Same grade name, different standards)

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