[Main use of SPHC material] Hot rolled steel plate products are widely used in shipbuilding, automobile, bridge, construction, machinery, pressure vessel and other manufacturing industries due to their high strength, good toughness, easy processing and good weldability. With the maturity of new control technologies such as hot rolling dimensional accuracy, shape and surface quality and the continuous emergence of new products, hot rolled steel plates and strips have been more and more widely used and become more and more competitive in the market.

A36 is an American standard carbon structural plate, which is subject to ASTM A36/A36M. This standard is applicable to riveting, bolting and welding structures for bridges and buildings, as well as general purpose structural steel quality carbon steel sections, plates and bars.

Performance and application of material ST37: the material has good performance, that is, through cold rolling, it can obtain cold rolled strip and steel plate with thinner thickness and higher precision, with high straightness, high surface finish, clean and bright surface of cold rolled plate in Taiwan Strait, easy to be coated, various varieties, wide application, high stamping performance, non aging, and low yield point.

1020 belongs to high-quality carbon structural steel. Its strength is slightly higher than 1015 steel. It has good toughness, plasticity and weldability. It is rarely quenched and has no temper brittleness. Parts with high cold deformation plasticity, generally used for bending, calendering, edge bending and hammer arch processing, good welding performance of electric arc welding and contact welding, small thickness during gas welding, strict shape requirements or complex shapes are prone to cracks. Machinability cold drawing or normalizing state is better than annealing state, and is often used to manufacture various mechanical parts with low stress and high toughness requirements.