Minjie Steel
1 / 5
| Product name | hollow section square tube |
| Wall Thickness | 0.7mm–13mm |
| Length | 1–14m According to customer requirements … |
| Outer Diameter | 20mm*20mm—400mm*400 |
| Tolerance | Tolerance based on Thickness: ±5～±8%; According to customer’s request |
| Shape | square |
| Material | Q195—Q345, 10#, 45#, S235JR, GR.B-D, STK500, BS1387…… |
| Surface treatment | black |
| factory | yes |
| Standard | ASTM, DIN, JIS, BS |
| Certificate | ISO, BV, CE, SGS |
| Payment terms | 30% T/T deposit in advance, 70% balance after B/L copy; |
| Delivery times | 25 days after receive ur deposits |
| Package |
|
| Loading port | Tianjin/Xingang |
Hollow section square tubes are widely used in structural construction, mechanical engineering, steel frame building, automotive parts, machinery manufacturing, and agricultural frameworks due to their excellent strength-to-weight ratio.
We offer a wide scope of dimensions, with outer diameters from 20mm x 20mm up to 400mm x 400mm, and wall thicknesses ranging from 0.7mm to 13mm to accommodate diverse project needs.
Our products are manufactured according to ASTM, DIN, JIS, and BS standards. Available material grades include Q195 to Q345, 10#, 45#, S235JR, GR.B-D, STK500, and BS1387.
Yes, our manufacturing processes and final products are certified by recognized international testing and certification bodies, including ISO, BV, CE, and SGS.
Our standard payment term is 30% T/T deposit in advance, with the remaining 70% balance due upon receipt of the B/L copy. Standard delivery takes approximately 25 days after the deposit is received.
They are packed in secure bundles for safe transport, but custom packaging options can be arranged depending on your specific shipping and handling requirements.
