Material – EN 1.4958

Standard Specification for Seemless Steel Tubes for Pressure Purposes

Group - Ferrous Stainless Steel Alloys

Sub Group - EN 1.4958 Seemless Steel Tubes for Pressure Purposes

Application - Intended for Valve, Pump, General Engineering, Automotive and Other Industries

Grade Belongs to the Industry - Steel

Chemical Composition
CarbonC %0.030 - 0.080
SiliconSi %0.700 max.
ManganeseMn %1.500 max.
PhosphorusP %0.015 max.
SulphurS %0.010 max.
ChromiumCr %19.000 - 22.000
NickelNi %30.000 - 32.500
TitaniumTi %0.200 - 0.500
NiobiumNb %0.100 max.
Ni + CoNi% + Co% 30.000 - 32.500Tensile Strength in Mpa
AluminiumAl %0.200 - 0.500
Al + TiAl% + Ti%0.700 max.
CobaltCo %0.500 max.
CopperCu %0.500 max.
IronFe %Balance
Heat Treatment
Solution Annealing
Mechanical Properties
500 - 750-
Yield Strength in Mpa170 min.
Elongation in %30 min.
Reduction of Area in %-
Hardness in BHN-
Impact in Joule80 J @ RT

Cross Reference Table

Material Standard Country Grade Belong to the Industry
10216-5 EN 1.4958(+RA) BS British Tube
1.4958 DIN Germany Steel
X5NiCrAlTi31 20 DIN Germany Steel and Flat
X5NiCrAlTi31 20 EN European Union Steel and Flat
X5NiCrAlTi31 20 DIN Germany Steel and Flat
1.4959 EN European Union Steel
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