X2CrNiMoN 25-7-4 1.4410 - EN 10217-7-2021

Grade	X2CrNiMoN 25-7-4
European Standard Steel Grade	1.4410
Corresponding Standard	EN 10217-7-2021 Part 7: Stainless steel tubes
Classification	Duplex Stainless Steel

X2CrNiMoN 25-7-4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P ^*	S ^*	Cr	Ni	Mo	N
Minimum Value	-	-	-	-	-	24	6	3	0.2
Maximum Value	0.03	1	2	0.035	0.015	26	8	4.5	0.35

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

X2CrNiMoN 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≤60	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: 1040-1120°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	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

United States	France	European Standard		Sweden
UNS	NF EN/NF	EN	Numerical Grade	SS
S32750	Z3CND25-06Az	X2CrNiMoN25-7-4	1.4410	2328

X2CrNiMoN25-7-4 Corresponding Standards(Same grade name, different standards)

1	EN 10088-1-2005
	X2CrNiMoN 25-7-4 1.4410
2	EN 10296-2-2005
	X2CrNiMoN25-7-4 1.4410
3	EN 10253-4-2003
	X2CrNiMoN25-7-4 1.4410
4	EN 10250-4-1999
	X2CrNiMoN 25-7-4 1.4410
5	ISO TS 15510-2003
	X2CrNiMoN25-7-4
6	EN 10088-3-2005
	X2CrNiMoN25-7-4 1.4410
7	EN 10297(2)-2005
	X2CrNiMoN25-7-4 1.4410
8	EN 10088-3-2014
	X2CrNiMoN25-7-4 1.4410
9	ISO 15510-2014
	X2CrNiMoN25-7-4 4410-327-50-E
10	ISO 9328-7-2018
	X2CrNiMoN25-7-4
11	DIN EN 10088-3-2014
	X2CrNiMoN25-7-4 1.4410
12	NF EN 10088-2-2005
	X2CrNiMoN25-7-4 1.4410
13	NF EN 10088-1-2005
	X2CrNiMoN25-7-4 1.4410
14	NF EN 10028-7-2008
	X2CrNiMoN25-7-4 1.4410
15	NF EN 10296-2-2005
	X2CrNiMoN25-7-4 1.4410
16	NF EN 10028-7-2000
	X2CrNiMoN25-7-4 1.4410
17	DIN EN 10296-2-2006
	X2CrNiMoN25-7-4 1.4410
18	EN 10272-2016
	X2CrNiMoN25-7-4 1.4410
19	EN 10217-7-2021
	X2CrNiMoN 25-7-4 1.4410
20	EN 10088-2-2024
	X2CrNiMoN25-7-4 1.4410
21	EN 10028-7-2016
	X2CrNiMoN25-7-4 1.4410

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