Rectangular steel pipe
Q345B rectangular tube is also called Q345B square rectangular tube, 16Mn rectangular tube, Q345 rectangular tube, square rectangular tube, rectangular tube, seamless rectangular tube, stainless steel rectangular tube, square rectangular tube, Q345B rectangular tube, large diameter thick wall rectangular tube, Q345C Rectangular tube, stainless steel rectangular steel tube, seamless square rectangular steel tube and other rectangular tube products; Q345B rectangular tube implementation of national standard GBT 6728-2002 Structural cold-formed hollow steel size, shape, weight and tolerance production, is Q345B strip Processed and rolled. Q345B rectangular tube is made of Q345B material (low alloy) and it is very different from ordinary rectangular tube in raw material (Q195, Q215, Q235). Generally, Q345B strip (low alloy) is unpacked. , flat, curled, welded to form a round tube, and then rolled into a square tube by a round tube and then cut into a required length of 6 meters, 12 meters can be processed according to customer requirements. The general small size is 50 per pack, and the large size is controlled at 3 tons per pack. The Q345B rectangular tube is mostly in the size of 80MM*80MM-500MM*500MM, and the thickness is 3MM-16MM.