The figures showes stress- straindiagramm and the microstructure of EN-GJL250

Rm = 249MPa; Din 1691: Rm = 245MPa

The figures showes stress- straindiagramm and the microstructure of EN-GJS400

structure is 80% ferritic

Rm=443 MPa; A5=25%; Din 1693: Rm=400MPa; A5=15%
The figures showes stress- straindiagramm and the microstructure of EN-GJS700

structure 85% perlitic

Rm=663 MPa; A5=3,1%; Din 1693: Rm=700 MPa; A5=2%
Iron castings poured by students from production technology:
 
GJL 250 casting
GJS 700 casting

 
GJS 400 casting
GJL 250 casting