EN-GJL-200
Cast iron with lamellar graphite
Cast iron with lamellar graphite contains 2.6 to 3.6% carbon, which is present as graphite in the form of fine lamellae in the base material. These lamellae permeate the cast material with fine branches and work due to their relatively low strength as a result of the notch effect and their brittleness.
Cast iron with lamellar graphite can be subjected to different heat treatments (such as curing, nitriding, tempering) to improve its properties. A higher proportion of pearlite in the basic structure is beneficial for heat treatments.
Cast iron with lamellar graphite can be subjected to different heat treatments (such as curing, nitriding, tempering) to improve its properties. A higher proportion of pearlite in the basic structure is beneficial for heat treatments.
Cast type | Cast iron with lamellar graphite |
Material No. | EN-JL-1030 |
US standard (AISI) | No. 20 B |
DIN EN 10027-2 | 5.1300 |
Abbreviation | EN-GJL-200 |
Old designation | GG20 |
Composition | C: 2.95 – 3.45 |
Density [g/cm³] | 7.15 |
R0.2 N/mm² | - |
0.1% Elongation limit | 130-195 |
Tensile strength | 200 – 300 |
Brinell hardness HB30 | 180-220 |
Elongation after fracture A% | 0.8 – 0.3 |
Elastic modulus E kN/mm² | 88 – 113 |
Compressive strength Sdb N/mm² | 720 |
Workability | Very good |
Weldability | Limited, can be welded with special electrodes |
Compressive strength | Good |
Emergency-running properties | Good |
Thermal conductivity | Good |
Vibration-absorbing properties | Good |
Castability | Very good |
Other properties |
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Structure | Ferritic/pearlitic |
Main uses | For complicated workpieces with a lot of contours, very versatile |
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.