X2CrNiMoN 17-13-5 1.4439 - EN 10217-7-2021

Grade	X2CrNiMoN 17-13-5
European Standard Steel Grade	1.4439
Corresponding Standard	EN 10217-7-2021 Part 7: Stainless steel tubes
Classification	Austenitic Stainless Steel

X2CrNiMoN 17-13-5 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N
Minimum Value	-	-	-	-	-	16.5	12.5	4	0.12
Maximum Value	0.03	1	2	0.045	0.015	18.5	14.5	5	0.22

X2CrNiMoN 17-13-5 Mechanical Properties

wall thickness T mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
T≤60	Solution annealing (+AT)	580~800	≥285	Rp1.0 ≥315	≥35(l) ≥30(t)	室温 ≥100(l)；≥60(t) -196°C ≥60(t)

• l=longitudinal；t=transverse

• Solution annealing temperature: 1100-1140°C, rapid cooling in water and air. Resistant to intergranular corrosion. Method C in EN ISO 3651-2-1998.

1 Approximate Comparison Table Austenitic Stainless Steel

China		United States		International Organization for Standardization		European Standard
GB	ISC	AISI	UNS	ISO	Numerical Grade	EN	Numerical Grade
022Cr19Ni16Mo5N	S31723	317LMN	S31726	X2CrNiMoN17-13-5 X2CrNiMoN 18-15-5	4439-317-26-E 4483-317-26-I	X2CrNiMoN17-13-5	1.4439 (1.4483)

2 Approximate Comparison Table Austenitic Stainless Steel

X2CrNiMoN17-13-5 Corresponding Standards(Same grade name, different standards)

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