EN 10213-4 Grade GX5CrNiMoNb19-11-2: Heat‑Treated, Quenched, Corrosion‑Resistant Austenitic Steel

The austenitic material GX5CrNiMoNb19-11-2 is equivalent to trademark G-X 5CrNiMoNb 18 10 acc. to DIN 17445-84. This ic-resistant material is used for fittings, pumps, agitators, tanks in chemical industry, in cellulose, rayon staple, textile, color and rubber industry. It is weldable without preheating and heat after treatment. A special stabilization annealing in a range from 550 to 600 °C. is accordable in order to improve the corrosion resistance.

Properties

General

Property	Temperature	Value
Density	20.0 °C	7.9 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	23.0 °C	195 GPa	Typical for Austenitic Stainless Steel
Elongation	20.0 °C	25 %
Poisson's ratio	23.0 °C	0.3 [-]	Typical for Austenitic Stainless Steel
Shear modulus	23.0 °C	77 GPa	Typical for Austenitic Stainless Steel
Tensile strength	20.0 °C	440 - 640 MPa
Yield strength Rp1.0	20.0 °C	210 MPa
	100.0 °C	185 MPa
	200.0 °C	160 MPa
	300.0 °C	145 MPa
	400.0 °C	130 MPa
	500.0 °C	120 MPa
	550.0 °C	115 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	100.0 °C	1.58E-5 1/K
	300.0 °C	1.7E-5 1/K
	500.0 °C	1.77E-5 1/K

Melting point		1230 - 1480 °C	Typical for Austenitic Stainless Steel
Specific heat capacity	20.0 °C	530 J/(kg·K)
Thermal conductivity	50.0 °C	14.5 W/(m·K)
	100.0 °C	15.8 W/(m·K)

Electrical

Property	Temperature	Value	Comment
Electrical resistivity	23.0 °C	8.5E-7 Ω·m	Typical for Austenitic Stainless Steel

Chemical properties

Property	Value
Carbon	0.07 %
Chromium	18 - 20 %
Manganese	1.5 %
Molybdenum	2 - 2.5 %
Nickel	9 - 12 %
Niobium	1 %
Phosphorus	0.04 %
Silicon	1.5 %
Sulfur	0.03 %

EN 10213-4 Grade GX2NiCrMo28-20-2 – Premium Solution‑Heat Treated Stainless Steel for Pressure Vessels ASTM B483 Grade 5005 Aluminium: Key Properties & Standards

Metal