Minjie Steel
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| 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 |
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| Loading port | Tianjin/Xingang |
The outer diameter ranges from 20mm*20mm to 400mm*400mm, with wall thickness options spanning from 0.7mm up to 13mm. The lengths are available from 1m to 14m, or custom tailored to client requests.
Our products are manufactured using standard materials like Q195—Q345, 10#, 45#, S235JR, GR.B-D, STK500, and BS1387. They comply with major international standards including ASTM, DIN, JIS, and BS.
Our square tubes are highly certified, carrying approvals from reputable international bodies including ISO, BV, CE, and SGS.
We accept a 30% T/T deposit in advance, with the remaining 70% balance due after the B/L copy. Standard delivery times are within 25 days after the receipt of the initial deposit.
The tubes are packaged securely in bundles or packed according to specific customer requirements. Shipping loading is carried out at the Tianjin/Xingang port.
