EN 1564 Grade GJS-1000-5 Austempered Cast Iron – Superior Strength & Ductility

Sort EN-GJS-1000, mat. No EN-JS1110 is a ferrous-carbon-based cast material that contains carbon predominantly in the form of spheroidal particles and that combines compared to the sort cast iron with nodular graphite (DIN EN 1563) higher strength and ductility properties by heat-treatment. Heat-treatment (austenite is usually transformed at a temperature between 250 and 400 °C) is an integral component of the production process.

Properties

General

Property	Temperature	Value
Density	20.0 °C	7.15 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	20.0 °C	165 - 190 GPa
Elongation	20.0 °C	5 %
Hardness, Brinell	20.0 °C	300 - 360 [-]
Poisson's ratio	23.0 °C	0.26 - 0.31 [-]	Typical for Ductile (Nodular) Cast Iron
Shear modulus	23.0 °C	63 - 66 GPa	Typical for Ductile (Nodular) Cast Iron
Tensile strength	20.0 °C	1000 MPa
Yield strength Rp0.2	20.0 °C	700 MPa

Thermal

Property	Temperature	Value	Comment
Coefficient of thermal expansion	400.0 °C	1.65E-5 1/K
Melting point		1150 - 1200 °C	Typical for Ductile (Nodular) Cast Iron
Specific heat capacity	20.0 °C	420 J/(kg·K)
	400.0 °C	507 J/(kg·K)

Thermal conductivity	20.0 °C	33 W/(m·K)
	300.0 °C	33 W/(m·K)

Electrical

Property	Temperature	Value
Electrical resistivity	20.0 °C	5.4E-7 Ω·m

Chemical properties

Property	Value
Carbon	3.5 %
Manganese	0.3 %
Silicon	2.4 %

EN 10277-3 Grade 46SPb20 – Quenched, Tempered & Cold Drawn (QT+C) – Premium Free‑Cutting High‑Strength Steel EN GJS-1200-2 Austempered Cast Iron – High Strength & Ductility

Metal