What are the requirements for the cold bending test of Q235 steel plate?
A: The mandrel diameter varies depending on the thickness: 0a for thickness a≤6mm; 0.5a for thickness 6<a≤16mm; 1.5a for thickness 16<a≤100mm. No cracks should appear after a 180° cold bend.
What are the common thickness ranges for Q235 steel plate?
A: Hot-rolled Q235 plate: 1.5-600mm; Medium-thick plate: 10-100mm; Thick plate: 100-600mm; Thin plate: 1.5-10mm. Custom lengths are available upon request.
What are the standard widths and lengths of Q235 steel plate?
A: Width: 1000mm, 1250mm, 1500mm, 1800mm, 2000mm, 2200mm, 2500mm; Length: 2000mm, 3000mm, 6000mm, 12000mm. Non-standard length cutting is supported.
What are the common processing techniques for Q235 steel plates?
A: Supports cutting (flame/plasma/laser), bending, welding, punching, rolling, grinding, polishing, etc. Excellent cold and hot working performance.
What precautions should be taken when welding Q235 steel plates?
A: Excellent weldability, no preheating required (for plates ≥50mm thick, slight preheating to 100-150℃ is acceptable). Ordinary welding rods (E43 series) and welding wire can be used. There is no significant risk of welding cracks after welding.