Q235 Welding Performance?
A: Excellent. Low carbon equivalent, not prone to cracking, suitable for common welding applications.
Q235 Cold Bending Performance?
A: Excellent. Can be bent 180° without cracking at d=1.5a.
Q235 Can it be stamped/cold-headed?
A: Yes, good plasticity, suitable for bolts, nuts, and sheet metal parts.
Q235 Requires Heat Treatment After Welding?
A: Generally not; stress-relieving annealing (500-600℃) can be used for important dynamic load structures.
Q235 Can it be Quenched to Increase Hardness?
A: Poor effect; quenching does not significantly harden low-carbon steel.