Q: What subsequent processing can Q235 coil undergo?
A: It can undergo leveling, shearing, bending, welding, stamping, pickling, phosphating, painting, and other processing.
Q: What is the flatness tolerance of the steel plate after leveling Q235 coil?
A: According to GB/T 709 standard, the flatness tolerance is generally ≤15mm/m (adjusted according to thickness and width).
Q: What are the surface quality requirements for Q235 coil?
A: Slight oxide scale, indentations, scratches, and other defects are allowed on the surface, but harmful defects such as cracks, folds, and delamination are not allowed.
Q: Can Q235 coil be produced as cold-rolled coil?
A: Q235 material can be made into cold-rolled coil through a cold rolling process, but it is usually marked as Q235 cold-rolled coil after cold rolling, with a smoother surface and higher dimensional accuracy.
Q: What are the tolerance standards for Q235 coil? A: Thickness tolerances generally comply with the ordinary precision (PT.A) or higher precision (PT.B) in GB/T 709. The specific tolerance value is determined according to the thickness grade.