US Fencor Finkl 1020 carbon steel structure carbon content of about 0.2%, are low carbon steel. Strength is much higher than the domestic 20 steel, rarely quenching, no temper brittleness. 1020 carbon steel structure steel cold deformation plastic high, suitable for bending, rolling, bending and hammer arch and other processing, arc welding and contact welding welding performance is good, gas welding, the thickness of small, demanding shape or complex shape of the workpiece It is prone to crack. Machinability Cold drawing or normalizing state is better than the annealing state, generally used in the manufacture of small force and toughness of the high demand for molds and manufacturing less important small and medium carburizing carbonitriding and other parts, such as the car Hand brake shoe, lever shaft, gearbox speed fork, drive passive gear and tractor camshaft, suspension equalizer shaft, equalizer inside and outside the bushings; in hot rolling or normalizing state for manufacturing force is not large, and High toughness of the various mechanical parts; in heavy and medium-sized machinery manufacturing, such as forging or pressing the rod, shackles, levers, sleeves, fixtures and so on. In the steam turbine and boiler manufacturing industry used in the pressure 6N / square, the temperature of 450 ℃ in the non-corrosive media work in the pipe, flange, header and various fasteners; in railways, locomotives and vehicles used in the manufacture of cross head, Piston and other castings.