Automotive steel
B420CL thickness allowable deviation should be consistent with Q / BQB 301 high precision (PT.B) provisions,B420CL good cold formability for automotive roll forming wheel and spoke network.
B420L belong in a cold-rolled sheet steel, cold-rolled sheet is hot rolled coils as raw material at room temperature at a temperature below the recrystallization rolling from, including board and volumes.
B450CL steel has high strength, good fatigue resistance, plasticity and good weldability
B500CL steel has high strength, good fatigue resistance, plasticity and good weldability
As B750QZR Mechanical and B750QZR suppliers, we can supply B750QZR Chemical, B750QZR Mechanical and B750QZR standard for you ,please contact us : jw@steel-jw.com