What materials commonly used cranes

What materials commonly used cranes?  bridge gantry crane  structural parts, metal structures, fittings and accessories are made ​​of metal and non-metallic materials processing.Crane parts generally forgings, rolled parts, welding parts, castings as blanks, after mechanical processing. Forgings, rolled parts, welding parts mainly carbon structural steel, quality carbon structural steel and low-alloy structural steels. Important parts are made of steel, steel structure together with the special requirements of special premiums steel parts. Castings can cast steel, cast iron and bronze. In order to improve the mechanical properties, single girder bridge cranes improved load carrying capacity and life of parts, the casting must be heat treated. Nonferrous metals and alloys are used with high electrical conductivity, wear resistance, corrosion resistance, or other special properties of high strength requirements of the parts