The pipe structure steel for automotive includes two types of steel: high-strength cold-formed steel and high-strength hot-formed steel.
The high strength cold-formed steel takes full of the precipitation strengthening of the second phase particle, with high strength and high elongation. The product is mainly applied in manufacturing framework of new energy vehicle , and it can be used to make square tube and deformed tube. This product also has good weldability and anti-corro- sion performance.
High-strength hot-formed steel is uncoated and can be delivered as hot rolled or pickled. After hot stamping , the grade possess- es high strength which can be applied in anticollision parts in passenger car or in parts, axle housing , wheel in commer- cial vehicle that ask for lightweight, sharply reducing vehicle weight.
