JIS G3101 A573 grade 70 carbon steel plate belongs to ordinary carbon structural steel grade, and the other grades of JIS G3101 are SS330, SS490, A573 grade 70 carbon steel plate and SS540. Related product types include steel plate, steel plate, section steel, steel pipe, etc.
Mg element can reduce the number, size, distribution and morphology of inclusions in steel such as A573 grade 70 carbon steel plate. Micro Mg can improve the size and distribution of carbides in bearing steel. And the carbide particles of bearing steel containing magnesium are fine and uniform. When Mg content is 0.002% - 0.003%, the tensile strength and yield strength of the steel increase by more than 5%, and the plasticity remains basically unchanged.
The cold working performance of A573 grade 70 carbon steel plate and so on steel structure engineering steel is good, which can ensure that the steel will not crack or brittle fracture during high-temperature processing, and will not have a great impact on strength, plasticity and toughness due to processing. The durability of A573 grade 70 carbon steel plate and so on steel structure engineering steel is good. Durability refers to the service life of steel structure. The main factor affecting the service life of steel is the poor corrosion resistance of steel, followed by the deterioration of mechanical properties of steel under long-term load, repeated load and dynamic load.
