Unalloyed cast iron

Unalloyed cast iron — gray cast iron doesn’t contain chemical elements such as chromium and nickel. It is soft and highly amenable to corrosive wear material. Chemical composition: C (2,6-3,6); Si (0,6-1,5); Mg (0,6-0,9); Cr (0); Ni (0); P (no more than 0.15); S (no more than 0.15).