S31700 - ASTM A479/A479M-2018

USA UNS	S31700
ASTM Specification or Grade	317
Corresponding Standard	ASTM A479/A479M-2018 Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
Classification	Austenitic Stainless Steel

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo
Minimum Value	-	-	-	-	-	18	11	3
Maximum Value	0.08	1	2	0.045	0.03	20	15	4

◎ New designations established in accordance with Practice E527 and SAE J1086 published jointly by ASTM and SAE. See ASTM DS-56C, available from ASTM Headquarters.

Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %
All specifications	Annealing	≥ 515 ①	≥205	in 2 in.[50 mm] or 4D ≥ 30	≥ 40 ②

◎ d-diameter, t-thickness

1 Approximate Comparison Table

China		Taiwan, China	Japan	South Korea	United States		Germany		United Kingdom
GB	ISC	CNS	JIS	KS	ASTM	UNS	DIN EN/DIN	W-Nr.	BS EN/BS
06Cr19Ni13Mo3	S31708	317	SUS 317	STS 317	317	S31700	X5CrNiMo 17-13	1.4449	317S16

2 Approximate Comparison Table

China		Taiwan, China	Japan	South Korea	United States		Germany		United Kingdom
GB	ISC	CNS	JIS	KS	ASTM	UNS	DIN EN/DIN	W-Nr.	BS EN/BS
06Cr19Ni13Mo3 (0Cr19Ni13Mo3)	S31708	317	SUS 317	STS 317	317	S31700	X5CrNiMo 17-13	1.4449	317S16

3 Approximate Comparison Table

China	Japan	United States	International Organization for Standardization		European Standard
ISC	JIS	UNS	ISO	Numerical Grade	Numerical Grade
S31708	SUS317	S31700	X6CrNiMo19-13-4	4445-317-00-U	(1.4445)

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