Cast iron types

We produce most standard grey cast iron alloys from ferritic to fine pearlite.

Please feel free to contact us for special alloys.

 

 

 

 

Lamellar graphite irons
Standard EN-1561 
  Min. - max. tensile Yield Min. - max. elongation Min. - max. hardness Structure 
EN - GJL- 200 200 - 300 - 0,3-0,8 170-230 perlite
EN - GJL- 250 250 - 350 - 0,3-0,8 170-230 perlite
EN - GJL- 300 300 - 400 - 0,3-0,8 170-230 perlite
EN - GJL- HB215 - - 0,3-0,8 155-215 perlite
GJL - 270 270-370 - 0,3-0,8 170-230 perlite

 

Ductile irons 
Standard EN-1563 
  Min. - max. tensile Yield Min. - max. elongation Min. - max. hardness Structure 
EN - GJS - 400 - 18 400 250 18 130 - 175 ferrite
EN - GJS - 400 - 15 400 250 15 135 - 180 ferrite
EN - GJS - 450 - 10 450 310 10 160 - 210 ferrite
EN - GJS - 500 - 7 500 320 7 170 - 230 ferrite - perlite
EN - GJS - 600 - 3 600 370 3 190 - 270 perlite - ferrite
EN - GJS - 700 - 2 700 420 2 225 - 305 perlite 
500-9 500 320 9   ferrite - perlite

 

Ductile iron (SG)

The various combinations of resistance, yield strength and elongation of SG irons are able to compete with those of steel.

Advantages:

  • corrosion resistance,
  • dimensional stability,
  • excellent machinability,
  • unequalled reliability and longevity in certain areas,
  • better thermal conductivity.
  

Lamellar graphite iron (LG)

This is the most common of the so-called grey irons. The graphite is present in the form of flakes. It is mainly used for the manufacture of mechanical parts (different resistance grades are possible) and for machine tool frames (good vibration resistance).

Advantages:

  • easy to machine,
  • very good resistance to corrosion and distortion when hot,
  • very good vibration absorption,
  • dimensional stability (production of quiet and geometrically stable machine tools),
  • excellent flow ability.