On November 29, 2020, China's SHBG Special Steel Technology Group successfully commercialized high-strength dual-phase steel [tensile strength of 1310MPa].
The 1310MPa grade is the dual-phase steel product with the highest tensile strength level at present. It can be used for door anti-collision beams, thresholds, front and rear bumpers and other parts. Compared with ultra-high-strength dual-phase steels such as 980MPa and 1180MPa, the strength level An increase of 10~30%.
The microstructure of cold-rolled dual-phase steel for automobile plates is mainly ferrite and martensite. It has good strong plasticity, good drawing performance and processing performance, and is the most commonly used material for body structure and safety parts. In 2009, SHBG took the lead in realizing the commercial production of 980MPa grade and 1180MPa grade high-strength dual-phase steel in China.
The ultra-high-strength steel for automobiles with more than 1000MPa can provide space for further weight reduction of body safety parts, and at the same time better improve the safety performance of the body, and promote the development of lightweight automobile body.