What are common delivery states?
A: Hot rolled (HR), as rolled (AR), controlled rolled, normalized (N).
12. Is Q235 weldable?
A: Excellent weldability due to low carbon content. Suitable for arc, gas, resistance welding.
13. Is Q235 good for bending?
A: Good cold formability/bendability. High ductility (≥ 26% elongation) minimizes cracking.
14. What is Q235's corrosion resistance?
A: Poor corrosion resistance (rusts easily). Requires painting, galvanizing, or other coatings.
15. Can Q235 be heat treated?
A: Generally not hardened by quenching (low carbon). Used as-rolled; normalization can improve uniformity.