From the forming methods, commercial vehicle beams can be divided into stamping beams, rolling beam, and welding beam. For the stamping beam and rolling beam, the steels should have high cold forming performance. For welding beam, the steels should show good weldability.
The hot-rolled automobile structural steels of Baosteel are featured with high strength, excellent forming and welding performance and high dimension accuracy and surface quality. They are widely used in many automobile manufacturers to make automobile structure parts, such as vehicle beams and wheels.
Baosteel’s high strength low alloy steel has high strength, good ductility, high toughness in low temperature, high fatigue resistance and good welding performance. With good cold forming performance, theses steels are suitable for drawing and roll forming.
From the forming methods, commercial vehicles beams can be divided into stamping beam, rolling beam, and welding beam. For stamping beam and rolling beam, the steels should have high cold forming performance. For welding beam, the steels should show good weldability.
Wheel steel is generally used for conventional wheel steel and dual phase steel. With good cold forming properties,suitable for wheel rims and disks.The microstructure of dual phase steel (DP) is mainly ferrite and martensite,martensite island disperses in the ferrite matrix.Dual phase steel has no aging effect.With low yield ratio,high work-hardening index and bake-hardening value,dual phase steel is a preferred material for structural parts.
Baosteel has a series of automobile axle housing steel with advanced technology, such as cold stamping axle housing steel and hot stamping axle housing steel, used for reduce weight of commercial vehicle.
Dual Phase Steel Grades
Because of the diversified and personalized characteristics of products in the semi-trailer trade, Baosteel has developed special steel products.