cast iron
forged steel
mild steel
high carbon steel
nickel, chromium and iron
nickel, copper
nickel, chromium
nickel, zinc
ductile
malleable
homogeneous
anisotropic.
tin, antimony, copper
tin and copper
tin and lead
lead and zinc
dipping steel in cyanide bath
reacting steel surface with cyanide salts
adding carbon and nitrogen by heat treatment of steel to increase its surface hardness
obtaining cyanide salts