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% |
| Shape | square |
| Material | Q195---Q345, 10#, 45#, S235JR, GR.B-D, STK500, BS1387...... |
| Surface treatment | Galvanized |
| Zinc coating | Pre-galvanized square tube: 40--220G/M2; Hot dip galvanized square tube: 220--350G/M2 |
| Standard | ASTM, DIN, JIS, BS |
| Certificate | ISO, BV, CE, SGS |
| Payment terms | 30% T/T deposit in advance, 70% balance after B/L copy; 100% Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L copy 20--30days |
| Delivery times | 25 days after receive your deposits |
| Package | 1. Through a bundle 2. According to customer’s requirement |
| Loading port | Tianjin/Xingang |
Our suggestion is, when prices go down, customers purchase products. Customers can get high quality products at low prices and we can get orders.
An inquiry has been received from a customer in Singapore. The customer needs steel pipes. After we give the price to the customer, the customer says our price is high. Customers are compared with other suppliers. The customer purchased 10 containers in our factory for the first time. Now per month we are still supplying goods to this customer. The customer is satisfied with the quality of our products. Customers came to our factory to establish long-term relations of cooperation.
The customer purchased steel pipes in our factory. After the goods were produced, the customer came to our factory for inspection.
Our hollow section square tubes are manufactured using high-quality steel grades ranging from Q195 to Q345, 10#, 45#, S235JR, GR.B-D, STK500, and BS1387, meeting various international standards.
We offer an outer diameter range of 20mm*20mm up to 400mm*400mm, with wall thicknesses starting from 0.7mm to 13mm to support different structural requirements.
We provide high-quality galvanized surface treatments. For pre-galvanized square tubes, the zinc coating is 40–220G/M², and for hot-dip galvanized square tubes, it reaches 220–350G/M² for maximum rust and corrosion resistance.
Yes, our products carry certifications like ISO, BV, CE, and SGS. We welcome customers or their designated third-party agencies to inspect the products in our factory before loading.
Our factory is situated only 40 kilometers from Xingang port in Tianjin, which ensures rapid logistics. The standard delivery time is 25 days after receiving your initial deposit.
