SAE J158 M3210 Annealed Malleable Cast Iron – Superior Ductility & Machinability

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. M3210 has good ductility and machinability.

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	165 - 180 GPa	Typical for Malleable Cast Iron
Elongation	23.0 °C	10 %
Hardness, Brinell	23.0 °C	156 [-]
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	345 MPa
Yield strength	23.0 °C	224 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
Carbon	2.2 - 2.9 %
Iron	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	Steering gear housings, Carriers and Mounting brackets.
Processing history	as agreed

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Metal