Square steel tube specification
| Sizes | Square pipe: 30*30mm-1000*1000mm |
| Rectangular pipe: 30*60mm~500*1000mm | |
| Thickness: 1.2mm~20mm | |
| Length: 2.0m~12m | |
| Steel Grade | 10#-45#,A53-A369,Q195-Q345 |
| Standard | JIS G3302,JIS G3312,GB/T-12754-2006,ASTM A653M |
| Certificates | ISO 9001 / ISO 18001 / ISO 14001 / CE |
| Usage | Construction / building materials steel pipe |
| Structure steel pipe | |
| Solar structure component steel pipe | |
| Fence post steel pipe | |
| Greenhouse frame steel pipe | |
| Surface | Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized |
Square tubing for sale
The square tube, as the name suggests, is a square steel tube, which is unpacked, flattened, crimped, and welded to form a round tube. The round tube is rolled into a square tube and then cut to the required length. Square pipes are divided into structural square pipes, decorative square pipes, construction square pipes, mechanical square pipes, etc. according to their uses.
It is section steel with a square cross-section shape and size made of q235 hot-rolled or cold-rolled steel strip or coil as the base material, which is formed by cold bending and then high-frequency welding.
Classification of square tube
According to the production process, the square tube is divided into extruded seamless square tube, welded square tube, cold drawn seamless square tube, hot rolled seamless square tube. Among them, the welding square tube is divided into:
(a) According to the process-gas welding square tube, arc welding square tube, furnace welding square tube, resistance welding square tube
(b) According to welds-spiral welded square pipe, straight-seam welded square pipe
