SEW 395 G‑X120Mn13: Solution‑Heat‑Treated, Quenched Austenitic Steel for Low Magnetic Permeability

The fully austenitic material G-X 120 Mn 13 possesses a defined low value of the relative magnetic permeability of 1.01 maximum (for castings with a wall thickness of up to 50 mm). It is applied for construction components which an interference or shielding of a magnetic field must not occur at. To a large extent, the austenitic manganese cast steel is applied as a wear-resistant material. Its toughness is quite good, its resistance to corrosion in water is bad, welding is possible. Because of the strong strain hardening, the metal-removing machinability poses difficulties.

Properties

General

Property	Temperature	Value
Density	20.0 °C	7.9 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	23.0 °C	200 - 215 GPa	Typical for Manganese Steel
Elongation	20.0 °C	25 %
Poisson's ratio	23.0 °C	0.29 [-]	Typical for Manganese Steel
Tensile strength	20.0 °C	590 MPa
Yield strength Rp0.2	20.0 °C	295 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	100.0 °C	1.8E-5 1/K
	200.0 °C	1.9E-5 1/K
	300.0 °C	2E-5 1/K

Max service temperature, long		0 - 300 °C
Melting point		1382 - 1529 °C	Typical for Manganese Steel
Specific heat capacity	23.0 °C	510 - 553 J/(kg·K)	Typical for Manganese Steel
Thermal conductivity	20.0 °C	15 W/(m·K)

Electrical

Property	Temperature	Value
Electrical resistivity	20.0 °C	8E-7 Ω·m

Chemical properties

Property	Value
Carbon	1.1 - 1.3 %
Chromium	0.5 %
Manganese	11.5 - 13.5 %
Phosphorus	0.06 %
Silicon	0.5 %
Sulfur	0.03 %

SAE J435 0050B Steel – Quenched & Tempered – Medium Strength Excellence SEW 395 G‑X2CrNiMoN18‑14: High‑Performance Solution‑Heat‑Treated Austenitic Steel

Metal