BR450/780DP has many advantages such as good formability, high strength, low yield ratio, high initial work hardening rate, good balance of strength and ductility, etc.
BR540/690HE has high strength, good elongation, food formability and flangeability, which can meet the forming requirement of auto parts with complex shapes, such as lower arm, etc.
DIN17100 St44-2 is a kind of non-alloy structure steel.DIN17100 St44-2 steel is in the standard DIN17100.DIN17100 series steel grade is a kind of common carbon structural steel