EN-GJS-400
Cast iron with spheroidal graphite (ductile iron)
Cast iron with spheroidal graphite features microscopically fine spherical graphite excretions in the basic ferritic structure with a maximum carbon proportion of 4%.
The spherical geometry of the graphite deposits is achieved by adding low quantities of magnesium, cerium or calcium.
It is possible to modify the material properties with a subsequent heat treatment, e.g. through stress-relief annealing, pearlitisation, soft annealing and more.
The spherical geometry of the graphite deposits is achieved by adding low quantities of magnesium, cerium or calcium.
It is possible to modify the material properties with a subsequent heat treatment, e.g. through stress-relief annealing, pearlitisation, soft annealing and more.
Cast type | Cast iron with spheroidal graphite (ductile iron) |
Material No. | EN-JS1020 |
US standard (AISI) | 60-40-18 |
DIN EN 10027-2 |
|
Abbreviation | EN-GJS-400 |
Old designation | GGG 40 |
Composition | - |
Density [g/cm³] | 7.10 |
R0.2 N/mm² | 240 |
0.1% Elongation limit | - |
Tensile strength | 400 |
Brinell hardness HB30 | 135 – 180 |
Elongation after fracture A% |
|
Elastic modulus E kN/mm² | 169 |
Compressive strength Sdb N/mm² | 700 |
Workability | Very good |
Weldability | Limited, can be welded with special electrodes |
Compressive strength | - |
Emergency-running properties | Good |
Thermal conductivity | - |
Vibration-absorbing properties | - |
Castability | Very good |
Other properties | High strength, even under dynamic loads |
Structure | Mainly ferritic |
Main uses | Coupling parts, engine construction, cam shafts, fittings, pipes for water and gas lines, paddle wheels, nozzle rings, housing, parts for general machine construction, |
This information is for reference only; we do not assume any liability for its accuracy. The properties of steel materials are highly dependent on their thermal and/or mechanical treatment.