This Baosteel product description details hot‑rolled automotive steel sheets, their grades, mechanical properties, applications and ordering information.
Baosteel has developed a wide range of hot‑rolled high‑strength steel sheets for automotive use since 2004. The document covers the development history, various steel grades such as commercial‑vehicle beam steels, high‑strength wheel steels, truck‑body steels, shaft‑tube and axle steels, special steels and hot‑forming steels, together with technical solutions and ordering guidance.
The sheets are used in critical vehicle components—beams, wheels, bodies, axles and drive shafts—offering high strength, good formability, weldability and fatigue resistance. Application cases illustrate weight‑reduction benefits, and the order guide lists required information for procurement. This manual is written in Chinese.
| Yield strength (B510L) | ≥355 MPa |
|---|---|
| Yield strength (B980LE) | ≥960 MPa |
| Maximum yield strength for ultra‑high strength beam steel | 960 MPa |
High‑strength beam steels reach a maximum yield strength of about 700 MPa.
The ultra‑high strength grade B980LE is used to replace B750L.
They are used for beams, wheels, bodies, axles, drive shafts, chassis and suspension parts.