Steel, containing one or more alloying elements, which are added to give the steel certain physical/chemical properties, and restricted by limit range. If silicon, manganese, chromium, nickel, copper are not alloying elements, their content (%) must not exceed the following: silicon – 0.50%; manganese – 0.80%; chromium – 0.30%; nickel – 0.30%; copper – 0.30%.
