EN 1562 Grade GJMW-400-5 Decarburized Annealed Cast Iron – High Performance for Industrial Applications

Material EN-GJMW-400-5 (former GTW-40-05 acc. to DIN 1692-82) is a white malleable cast iron which is used for exhaust manifolds, agricultural-machinery parts, tube shapes, clutch members (coupling jaws), transmission casings, bicycle parts as well as for steering gear cases.

Properties

General

Property	Temperature	Value
Density	20.0 °C	7.3 - 7.8 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	20.0 °C	175 - 195 GPa
Hardness, Brinell	20.0 °C	220 [-]
Poisson's ratio	23.0 °C	0.27 [-]	Typical for Malleable Cast Iron
Shear modulus	23.0 °C	64 GPa	Typical for Malleable Cast Iron
Tensile strength	20.0 °C	300 - 420 MPa
Yield strength Rp0.2	20.0 °C	200 - 230 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	23.0 °C	1E-5 - 1.4E-5 1/K	Typical for Malleable Cast Iron
Melting point		1120 °C	Typical for Cast Iron
Specific heat capacity	20.0 °C	460 - 500 J/(kg·K)
Thermal conductivity	20.0 °C	42 - 63 W/(m·K)

Electrical

Property	Temperature	Value
Electrical resistivity	20.0 °C	3E-7 - 4E-7 Ω·m

Chemical properties

Property	Value
Carbon	2.9 - 3.1 %
Manganese	0.6 - 0.8 %
Silicon	0.25 - 0.4 %
Sulfur	0.1 %

EN 1562 GJMW-360-12 – Decarburized Annealed White Malleable Cast Iron for Valve Casings & Industrial Applications EN 10089 60Cr3 Quenched & Tempered Steel – Ideal for Springs & Mechanical Applications

Metal