Cast Iron (GG25, GGG40, GGG60)

Cast iron refers to a group of iron alloys that have a high percentage of carbon (> 2 %) and silicon (> 1.5 %) as well as e.g. manganese, chrome or nickel. Grey iron contains carbon in the form of graphite.  

Cast iron with flake graphite (GGL/GJL) 

The graphite structure defined as lamellar graphite determines the characteristic properties of this material group e.g. strength, machinability, wear resistance, damping characteristics, heat conductivity, etc. 

Cast iron with spheroidal graphite (GGG/GJS) 

Due to the spherical formation of the graphite, the ductile cast iron acquires special properties compared to the flake graphite; tensile strength, yield strength and E-module are improved, expansion and impact strength are increased. 

Material code (as per DIN EN) EN-GJL-250 EN-GJS-400-15 EN-GJS-600-3
Material number (as per DIN EN) EN-JL1040 EN-JS1030 EN-JS1060
Material code (as per old DIN) GGC 25 GGG 40 GGG 60
Material number (as per old DIN) 0.6025 0.7040 0.7060
Other names Grey iron, cast iron with flake graphite Cast iron with graphite cast iron, spheroidal graphite iron Cast iron with graphite cast iron, spheroidal graphite iron
Versions from stock Rund Vierkant Flach Rohr, Buchse Rund Vierkant Flach Rohr, Buchse Rund Vierkant Flach Rohr, Buchse
Properties Good sliding properties, pressure-tight, heat resistant, high wear resistance and excellent machinability Good machinability Good machinability and wear resistant
Use Maintenance, repair, general mechanical engineering Maintenance, repair, general vehicle construction and mechanical engineering Maintenance, repair, general vehicle construction and mechanical engineering
Density(g/cm³) approx. 7,20 7,20 7,20