X2CrNiMoCuWN 25-7-4 1.4501 - EN 10217-7-2021

Grade	X2CrNiMoCuWN 25-7-4
European Standard Steel Grade	1.4501
Corresponding Standard	EN 10217-7-2021 Part 7: Stainless steel tubes
Classification	Duplex Stainless Steel

X2CrNiMoCuWN 25-7-4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P ^*	S ^*	Cr	Ni	Cu	Mo	N	W
Minimum Value	-	-	-	-	-	24	6	0.5	3	0.2	0.5
Maximum Value	0.03	1	1	0.035	0.015	26	8	1	4	0.3	1

* For tubes welded without filler material the sum of sulphur and phosphorus shall be maximum 0,040 %.

X2CrNiMoCuWN 25-7-4 Mechanical Properties

wall thickness T mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
T≤30	Solution annealing (+AT)	800~1000	≥550	≥20(l) ≥20(t)	室温 ≥100(l)；≥100(t) -40°C ≥40(t)

• l=longitudinal；t=transverse

• Solution annealing temperature: 1080-1160°C, rapid cooling in water and air. Resistant to intergranular corrosion. Method B or C in EN ISO 3651-2-1998.

1 Approximate Comparison Table Austenitic-Ferritic Stainless Steel

China		Japan	United States	International Organization for Standardization	Germany		European Standard
GB	ISC	JIS	UNS	ISO	DIN EN/DIN	W-Nr.	EN	Numerical Grade
022Cr25Ni7Mo4WCuN 00Cr23Ni7Mo3.5WCuN*	S27603	SUS329J2L	S32760	X2CrNiMoCuWN 25-7-4	X2CrNiMoCuWN 25-7-4	1.4501	X2CrNiMoCuWN 25-7-4	1.4501

2 Approximate Comparison Table Austenitic-Ferritic Stainless Steel

China	Japan	United States	Germany		European Standard
GB	JIS	UNS	DIN EN/DIN	W-Nr.	EN	Numerical Grade
00Cr23Ni7Mo3.5WCuN	SUS329J2L	S32750 S32760	X2CrNiMoCuWN25-7-4	1.4501	X2CrNiMoCuWN25-7-4	1.4501

X2CrNiMoCuWN25-7-4 Corresponding Standards(Same grade name, different standards)

1	EN 10088-1-2005
	X2CrNiMoCuWN 25-7-4 1.4501
2	EN 10253-4-2003
	X2CrNiMoCuwn25-7-4 1.4501
3	EN 10250-4-1999
	X2CrNiMoCuWN 25-7-4 1.4501
4	ISO TS 15510-2003
	X2CrNiMoCuWN25-7-4
5	EN 10088-3-2005
	X2CrNiMoCuWN25-7-4 1.4501
6	EN 10297(2)-2005
	X2CrNiMoCuWN25-7-4 1.4501
7	EN 10088-3-2014
	X2CrNiMoCuWN25-7-4 1.4501
8	ISO 15510-2014
	X2CrNiMoCuWN25-7-4 4501-327-60-I
9	ISO 9328-7-2018
	X2CrNiMoCuWN25-7-4
10	DIN EN 10088-3-2014
	X2CrNiMoCuWN25-7-4 1.4501
11	NF EN 10088-2-2005
	X2CrNiMoCuWN25-7-4 1.4501
12	NF EN 10088-1-2005
	X2CrNiMoCuWN25-7-4 1.4501
13	NF EN 10028-7-2008
	X2CrNiMoCuWN25-7-4 1.4501
14	NF EN 10028-7-2000
	X2CrNiMoCuWN25-7-4 1.4501
15	EN 10272-2016
	X2CrNiMoCuWN25-7-4 1.4501
16	EN 10217-7-2021
	X2CrNiMoCuWN 25-7-4 1.4501
17	EN 10088-2-2024
	X2CrNiMoCuWN25-7-4 1.4501
18	EN 10028-7-2016
	X2CrNiMoCuWN25-7-4 1.4501

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