Baosteel's hot-rolled steel sheets and strips for automotive structures

Introduction

Baosteel Group Co., Ltd. (hereinafter referred to as Baosteel ) is the largest steel enterprise in China. It is an important production base of automotive industry and is the largest steel material supplier for major automobile manufacturing enterprises in the country. Baosteel is wellknown for its high-quality automobile structural hot-rolled steel plate and strip. It has the characteristics of excellent formability, superior weldability, superior surface quality, high strength, good toughness and fatigue properties, good machinability, low energy consumption and easy processing.

The application of hot-rolled plate and strip in vehicle structure mainly includes: unibody, suspension parts, engine parts, door and window frames, brake disc and brake drums. The raw materials of hot-rolled plate and strip are mainly low-alloy steel and carbon steel, low-alloy steel grades mainly include SM400A and SM490A;carbon steel grades mainly include SPHC and DD11. The thickness of the hot-rolled plate and strip is usually in the range of 1.0-6.0mm, and the width ranges from 600-2000mm. These products are widely used in passenger cars, sports cars, commercial vehicles and vans.

Vehicle construction with Hot-rolled plate and strip

Hot-rolled plate and strip products play an important role in vehicle body construction. The use of hot-rolled plate and strip can reduce the size and weight of the vehicle body and reduce the manufacturing cost. The high strength and formability of the hot-rolled plate and strip can make the body more rigidly and more secure. The hot-rolled plate and strip also has good weldability, which enables the connection between components easier and more reliable.

Unibody: The unibody of the vehicle is the frame and backbone of the entire car body. The frame is usually composed of several metal sheets which are connected together. The sheets are usually hot-rolled plates or strips. The unibody is assembled by cutting, bending, welding and other processes with these metal parts. The high strength and stiffness of the hot-rolled plate and strip can ensure the safety of the vehicle body.

Suspension: The suspension systems of vehicles are usually composed of several metal parts which are connected by rivets, bolts and welding. The suspension components are usually made of hot-rolled plate and strip, which has high strength and stiffness, and can ensure the stability and safety of the vehicle during driving.

Engine and transmission: The engine and transmission components are the most important components of the vehicle, which must keep good strength and rigidity. The engine and transmission components are usually made of hot-rolled plate and strip. The hot-rolled plates and strips contain a certain amount of alloy elements and have high strength and stiffness.

Doors and windows: Doors and windows of vehicles are usually composed of several metal sheets and frames, which are connected by welding, bolts and rivets. The metal sheets and frames are usually made of hot-rolled plate and strip. The high strength of the hot-rolled plate and strip can ensure the strength and safety of the doors and windows.

Brake discs and drums: Brake discs and drums are important components of the vehicle, and their quality directly affects the braking performance and safety of the vehicle. The brake discs and drums are usually made of hot-rolled plate and strip, and the hot-rolled plate and strip have good wear resistance, heat resistance and corrosion resistance.

Conclusion

Baosteel is the largest steel enterprise in China, and provides high-quality hot-rolled plate and strip for automotive industry. Hot-rolled plate and strip are widely used in vehicle structure, such as unibody, suspension parts, engine parts, door and window frames, brake disc and brake drums. The application of hot-rolled plate and strip can reduce the size and weight of the vehicle body and reduce the manufacturing cost. TheBaosteels hot-rolled plate and strip also have excellent formability, superior weldability, superior surface quality, high strength, good toughness and fatigue properties, good machinability, low energy consumption and easy processing.

Baosteel automobile structure with hot rolled steel plate and strip

Baosteel is a leading manufacturer of steel products in China, providing a variety of steel products for automobile manufacturing. Its technique range covers the development of hot rolled steel plates and strips for automobile structure.

The automobile structure hot rolled steel plate and strip supplied by Baosteel are mainly used in automobile frame, cross beams, solids, sideboards, doors and roofs, pillars, etc. The steels used can reach the strength level of medium carbon structural steel, Auto grade 8~30, and some of them can reach class 5, 7 and even class 6. The width range of the hot rolled strip are between 250~1600mm. The final product shall adopt modified surface treatment to insure the superior oxidation and corrosion resistance and superior adhesion.

Baosteel offers specialists in automotive hot rolling steel technology and advanced processing technology, combined with an integrated lab and technical service support. The processing technology includes annealing, dimensional gauge control, surface treatment, stamping technology, etc. Through years of research and practice, Baosteel has developed advanced technology and rich experience in processing automotive steel.

The automobile structure hot rolled steel plates and strips supplied by Baosteel are characterized by excellent surface quality and dimensional accuracy, uniformity and higher strength. The application of advanced processing technology contributes to the better adhesion effect. All products of Baosteel have passed international certification and main product quality declared by manufacturers.

In addition, Baosteel always pays attention to product innovation and improvement, and will continue to develop new products positioning in automotive steel design with advanced processing to meet customer needs. As a result, customers can get the automobile structure hot rolled steel plate and strip with excellent deformability, welding performance and high strength.