X5NiCrAlTi 31-20 1.4958 - DIN 17460-1992

Grade	X5NiCrAlTi 31-20
Germany W-Nr.	1.4958
Corresponding Standard	DIN 17460-1992 High Temperature Austenitic Steel Plate and Sheet, Cold and Hot Rolled Strip , Bars and Forgings Technical Delivery Conditions
Classification	Austenitic Stainless Steel
Properties	Corrosion Resistance
Density	8 g/cm³

X5NiCrAlTi 31-20 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni ^①	Cu	Ti	Nb	Co	Al	More
Minimum Value	0.03	-	-	-	-	19	30	-	0.2	-	-	0.2	Al+Ti≤0.7
Maximum Value	0.08	0.7	1.5	0.015	0.01	22	32.5	0.5	0.5	0.1	0.5	0.5	Al+Ti≤0.7

X5NiCrAlTi 31-20 Mechanical Properties

condition	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
Steel	Solution Heat Treatment	500~750	≥170	longitudinal: ≥35② transverse & tangential: ≥30	longitudinal: ≥120② transverse & tangential: ≥80

① Impact energy: Represents the mean from three test pieces. One single value may be lower, by not more than 30%
② In the case of strip, the values also apply to transverse test pieces. In the case of products 80 mm or more in length, the values are 5% lower than those specified.

Approximate Comparison Table Corrosion-Resistant Alloy

China	United States		Germany		United Kingdom
GB	Commercial Grade	UNS	DIN EN/DIN	W-Nr.	BS EN/BS
NS112	Incoloy 800H	N08810	X5NiCrAlTi31-20	1.4958	NA15(H)

X5NiCrAlTi31-20 Corresponding Standards(Same grade name, different standards)

1	EN 10088-1-2005
	X5NiCrAlTi 31-20 1.4958
2	EN 10302-2008
	X5NiCrAlTi 31-20 1.4958
3	ISO 15510-2014
	X5NiCrAlTi31-20 4958-088-77-E
4	DIN 17460-1992
	X5NiCrAlTi 31-20 1.4958

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