S30451 - ASTM A479/A479M-2018

USA UNS	S30451
ASTM Specification or Grade	304N
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	N
Minimum Value	-	-	-	-	-	18	8	0.1
Maximum Value	0.08	1	2	0.045	0.03	20	12	0.16

◎ 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	≥550	≥240	in 2 in.[50 mm] or 4D ≥ 30	≥ 40 ①

◎ d-diameter, t-thickness

1 Approximate Comparison Table Austenitic Stainless Steel

China		Taiwan, China	Japan	South Korea	United States		International Organization for Standardization		European Standard
GB	ISC	CNS	JIS	KS	ASTM	UNS	ISO	Numerical Grade	EN	Numerical Grade
06Cr19Ni10N (0Cr19Ni9N)	S30458	304N1	SUS 304N1 SUS 304N2	STS 304N1	304N	S30451	X5CrNiN 19-9	4315-304-51-I	X5CrNiN 19-9	1.4315

2 Approximate Comparison Table Austenitic Stainless Steel

China	Japan	United States	Germany		France	European Standard		Russia	Sweden	United Kingdom
GB	JIS	ASTM	DIN EN/DIN	W-Nr.	NF EN/NF	EN	Numerical Grade	GOST	SS	BS EN/BS
0Cr18Ni9	SUS304	304 304N	X5CrNi18-10 X5CrNi18-9	1.4301	X5CrNi18-10 Z5CN18-09 Z6CN18-09 Z7CN18-09	X5CrNi18-10	1.4301	08KH18N10	2333 2333-02	304S15 304S31

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