M8501 Malleable Iron – SAE J158 Grade, Liquid Quenched & Tempered

Malleable iron is a cast iron in which the graphite is present as temper carbon nodules, instead of flakes as gray iron or spherulites as in ductile iron. M8501 is high strength and/or wear resistance.

Properties

General

Property	Temperature	Value	Comment
Density	23.0 °C	7.2 - 7.34 g/cm³	Typical for Malleable Cast Iron

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	23.0 °C	179 GPa
Elongation	23.0 °C	1 %
Hardness, Brinell	23.0 °C	269 - 302 [-]
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	23.0 °C	724 MPa
Yield strength	23.0 °C	586 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	23.0 °C	460 - 527 J/(kg·K)	Typical for Malleable Cast Iron
Thermal conductivity	23.0 °C	51 W/(m·K)	Typical for Malleable Cast Iron

Chemical properties

Property	Value	Comment
Carbon	2.2 - 2.9 %
Iron	93.6 - 96.71 %	balance
Manganese	0.15 - 1.25 %
Phosphorus	0.02 - 0.1 %
Silicon	0.9 - 1.9 %
Sulfur	0.02 - 0.2 %

Technological properties

Property
Application areas	Where high strength and/or wear resistance are required.
Processing history	as agreed

SAE J158 Grade M7002: Liquid Quenched & Tempered Malleable Cast Iron SEW 090-1 Grade S690G2QL: High-Strength, Wear-Resistant Steel – Quenched & Tempered

Metal