The core of the automobile manufacturing industry lies in safety and environmental-friendly. The main requirements are high strength and lightweight. Under such circumstances, advanced high-strength steel got its development which is used in structural components and safe handling of the car body.

High-strength steel for automobile can be classified as:

1、Dual Phase Sheets of Steel
Features: No yielding strength, no elongation, high processing hardening index.
Application: DP steels are mainly used in structural components, reinforcing and anti-corrosion parts.
2、Complex Phase Sheets of Steel
Features: High yielding strength and tensile strength, good bending properties, high energy absorbing abilities, etc.
Application: CP steels are widely used in chassis suspension parts, bumper and B columns.
3、Transformation Induced Plasticity Steels
Features: Good formability, good anti-corrosion absorbing property, high strength plasticity.
Application: Mainly used in parts with complex structures.
4、Martensitic Sheets of Steel
Features: High yielding and tension strength, low elongation, good anti-corrosion absorbing property
Application: MS steels are mainly used in cold stamping of simple parts and some rolling parts with simplex sections
5、Quenching and Partitioning Steels
Features: High process hardening ability, and formability.
Application: QP steels are widely used in automobile safety fittings and structural components with complex shapes.
6、Twinning Induced Plasticity Steels
Features: High chemical composition of C, Mn, Al is good for process hardening ability. TWIP steels are also of high strength and formability.
Application: TWIP steels are widely used in prats with high requirements of elongation and bulging like automobile safety fittings and structural components with complex shapes.
7、Press Hardening/Boron Sheets of Steel
Features: High strength (the tension strength reaching over 1500MPa), PH steels are of high anti-corrosion property and lightweight.
Application: PH steels are mainly used in safety structural components like bumpers, A/B columns.