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    4. Data Sheet EN-GJL-300 - Cast iron with lamellar graphite

EN-GJL-300

   

Casting typeCast iron with lamellar graphite
Material No.EN-JL-1050
US Standard (AISI)No 30 B
DIN EN 10027-25.1302
AbbreviationEN-GJL-300
Old designationGG-30
DIN 1561
Composition [%]C: 2.95-3.20
Si: 2.10 - 2.40
Mn: 0.55 - 0.75
P: 0.10 - 0.20
S: 0.04 - 0.07
Density [g/cm³]7.25
R0.2 N/mm²
Yield point

-

0.1 % - Yield point
Rp0.1 N/mm²		195 - 260
Tensile strength Rm [N/mm²]300 - 400
Brinell hardness HB30
Sample <30mm		200 - 240
Elongation at fracture A%0.8 - 0.3
E-modulus E KN/mm²200 - 275
Compressive strength Sdb N/mm²960
Machinabilityvery good
Weldabilitylimited, weldable with special electrodes
Compressive strengthgood
Dry-running propertiesgood
Thermal conductivitygood
Vibration-absorbing propertygood
Castabilityvery good
Other properties-
StructurePerlitic
Main applications
  • Bearing shells, turbine housings, turbines, presses, tools
  • Recommended wall thicknesses: > 30 mm, presses, tables, wheels, tools, angle plates, tooling blocks

Information for reference only; we do not assume any liability for its accuracy. Properties of steel materials are highly dependent on thermal and/or mechanical treatment.