022Cr25Ni7Mo4N S25073 00Cr25Ni7Mo4N 2507 - GB /T 21833-2008

Grade	022Cr25Ni7Mo4N
China ISC	S25073
Other Names
Old Grade
Corresponding Standard	GB /T 21833-2008 Austenitic-Ferritic (duplex) grade stainless steel seamless tubes and pipes
Classification	Duplex Stainless Steel
Properties	Corrosion Resistance Machinability Weldability
Density	7.8 g/cm³

022Cr25Ni7Mo4N Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N
Minimum Value	-	-	-	-	-	24	6	-	3	0.24
Maximum Value	0.03	0.8	1.2	0.035	0.02	26	8	0.5	5	0.32

022Cr25Ni7Mo4N Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
1025~1125°C, Rapid cooling	≥800	≥450	≥15	≤300

1 Approximate Comparison Table Austenitic-Ferritic Stainless Steel

China		Japan	United States		International Organization for Standardization		Germany		European Standard
GB	ISC	JIS	ASTM	UNS	ISO	Numerical Grade	DIN EN/DIN	W-Nr.	EN	Numerical Grade
022Cr25Ni7Mo4N	S25073	UR 47N+	2507	S32750	X2CrNiMoN25-7-4	4410-327-50-E	X2CrNiMoN25-7-4	1.4410	X2CrNiMoN25-7-4	1.4410

2 Approximate Comparison Table Austenitic-Ferritic Stainless Steel

China		United States		International Organization for Standardization		United Kingdom
GB	ISC	AISI	UNS	ISO	Numerical Grade	BS EN/BS
022Cr25Ni7Mo4N (GB/T 39033)	S25073	2507	S32750 (ASTM A595-16)	X2CrNiMoN25-7-4 (ISO 15510:2014)	4410-327-50-E	X2CrNiMoN25-7-4/1.4410 (BS EN 10088-3:2014)

022Cr25Ni7Mo4N Corresponding Standards(Same grade name, different standards)

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