China Factory ASTM A53 Galvanized Structural Steel Tube We are one of the leading Manufacturer and Exporters of GI Pipes, Mild Steel Pipes, ERW Black & Galvanized Steel Pipes, Scaffolding Tubes, Hollow Sections , Black & Galvanized Steel Conduit Pipes & Carbon Steel Pipe from China. Size: Round pipe: 1/2"-20" Square pipe: 20x20-500x500mm Rectangular pipe: 20x40-400x600mm Wall Thickness: 1.4-14mm Length: 2-12m according to customers' requirements Zinc coating: 50-150g/m2 for pre galvanized 200-600g/m2 for hot dip galvanized Surface:Pre galvanized/Hot Dip Galvanized/Oiled/Painted Ends:Plain /Beveled/ Threaded with sockets coupling and plastic caps/ Necking down/expanding neck/punching holes Material: Q195 = S195 / A53 Grade A Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2 Q345 = S355JR / A500 Grade B Grade C Packaging Details: 1.Bundled with narrow steel strips; 2. wrapped with waterproof cloth; 3. According to customers' requirement. FAQ 1. Q: Are you a factory or a trading company? A: We not only have our own factories but also have shares in some other enterprises. 2. Q: Can you provide samples? A: Yes, if the sample is available in stock. 3. Q: Can you arrange the shipment? A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service. 4. Q: What is the delivery time? A: It is based on the order, normally 15 - 20 days after receiving the deposit or L/C at sight. 5. Q: Do you have quality control? A: Yes, we have gained BV, SGS authentication. 6. Q: What are your payment terms? A: 100% irrevocable L/C at sight. Or T/T, 30% advance, and balance against the copy of B/L within 3-5 days. 7.Q: What is your MOQ? A: 10 tons for common size, or mix sizes for a 20 GP container.