X7CrNi18-9 4948-304-09-I - ISO 4955-2016

X7CrNi18-9 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni
Minimum Value	0.04	-	-	-	-	17	8
Maximum Value	0.1	1	2	0.045	0.03	19	11

X7CrNi18-9 Mechanical Properties

	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
flat products, 0.5≤t＜3	Solid Solution Annealing (+AT)	500~700	≥195	≥37	≤192
flat products, 3≤t≤75	Solid Solution Annealing (+AT)	500~700	≥195	≥40	≤192
Section steel, 5 ≤ d ≤ 160	Solid Solution Annealing (+AT)	500~700	≥195	≥40	≤192
Bars and Profiles, 1.5≤d≤25	Solid Solution Annealing (+AT)	500~700	≥195	≥40	≤192
Forgings, d≤100	Solid Solution Annealing (+AT)	500~700	≥195	≥40	≤192

New and Old Grade Replacement List

Corresponding Standard	Grade
ISO 4955-1994	Grade Old Grade
ISO 4955-2005	Grade
ISO 4955-2016	Grade ISO Numeric Designation

1 Approximate Comparison Table Austenitic Stainless Steel

China		Japan	United States		International Organization for Standardization	Germany		European Standard
GB	ISC	JIS	AISI	UNS	ISO	DIN EN/DIN	W-Nr.	EN	Numerical Grade
07Cr19Ni10	S30409	SUS 304H	304H	S30409	X6CrNi 18-10 X7CrNi 18-9	X6CrNi18-10	1.4948	X6CrNi18-10	1.4948

2 Approximate Comparison Table

Japan	United States		International Organization for Standardization	France	European Standard		Russia
JIS	ASTM	UNS	ISO	NF EN/NF	EN	Numerical Grade	GOST
SUS304H	304H	S30409	X7CrNi18-9	Z6CN18-09	X6CrNi18-10	1.4948	08KH18N10

X7CrNi18-9 Corresponding Standards(Same grade name, different standards)

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