Part 1 Product Description
Square tube is the name for square tube and rectangular tube, which means they have equal sum. The sides vary in length. It is made of strip steel after processing and rolling. generally speaking. Unpacking, leveling, curling, welding into circular tubes, and then rolling into square tubes. Then cut into the required length.
Square tube is a hollow square thin-walled steel pipe, also known as a steel cooling bend profile. It is made of Q235 hot-rolled or cold-rolled strip or coil as the base material, processed by cold bending, and high-frequency welded into a square shaped steel with a cross-sectional shape and size. In addition to thickening the wall thickness, the corner size and edge flatness of hot-rolled thick walled square pipes have reached or even exceeded the level of resistance welded cold formed square pipes. It has good comprehensive mechanical properties, weldability, cold and hot working performance, corrosion resistance, and good low-temperature toughness.
Part 2 Product parameters
| Product name | 20*20 Black Iron Square Tube /Black Square Steel Pipe/rectangular steel tube |
| Outer diameter | 10*10 mm - 600*600 mm |
| Wall thickness | 0.6mm-25mm |
| Length | 1m-12m/piece |
| Producing Standard | ASTM A500,JG 178-2005,JIS G3466,EN10210 GB/T6728-2002,GB/T6725-2002, GBT3094-2000,or according to technical protocol |
| Main Material | ASTM A53,ASTM A106 ASTM A210,ASTM A283,ST33, ST37-2,ST52, DIN1626,DIN1629,STPY41,G3452,G3457, S235,S355, Q195-Q235,Q345,20#, alloy steel etc |
| Technology | Seamless; Or With seam |
| Surface Treatment | Paint oil; Varnish; Galvanized; Galvanize the raw strip steel; Or according to customer's requirements |
| Package | Standard export packing in bundle：Tied with steel trips, then wrapped by plastic material. Or according to customer's requirements. |
| Usage | Widely used in mechanical manufacture, construction field, metallurgy industry, farm vehicles, agriculture greenhouse, automotive industry, railway, highway guardrail, container frame, furniture, decoration, steel structure etc |
Part 3 Application
Square pipes are used in construction, machinery manufacturing, steel structure and other engineering projects, shipbuilding, solar power generation brackets, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automotive chassis, airports, boiler construction, highway railings, housing construction, pressure vessels, high load welded structural components such as oil tanks, bridges, power station equipment, lifting and transportation machinery.
Part 4 Packaging and shipping
1. The maximum loading capacity of each 20Gp container is 27.5 MT
2. Professional team for safe loading and unloading
3. Delivery time: 5-7 days after order confirmation or based on the quantity at the shipping port of the order: Shanghai, Qingdao, Tianjin
Mainly used in the manufacture of bridges, ships, vehicles, boilers, high pressure vessels, oil and gas pipelines, large steel structures, etc. Alloy quenched and tempered steel is widely used in the manufacture of automobiles, tractors, machine tools and other important parts, such as gears, shafts, connecting rods, bolts, etc.
Part 5 FAQ
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As a comprehensive industry and trade enterprise, we support OEM and ODM.
After understanding the customer's specific project requirements, we will record in detail the steel specifications you need, such as thickness, width, length, etc.
When you place an order, we will have professional tracking personnel to ensure the production and transportation of the goods. We will give you regular feedback on the actual progress of the goods.
Send the information to our sales people who will provide you with customs documents, customer feedback, shipping documents and other relevant information to prove it to you
Dear, due to the large volume of steel trade, product prices will vary according to market conditions. If you want to know the real-time price of the product, please contact our sales staff to communicate. They will provide you with the best price and service.
Usually, we ship within 7 days. Customized products need 15-30 days. Of course, we will make sure that customers have a clear understanding of our delivery time and provide flexible delivery solutions according to their needs. If possible, I will discuss with the customer how to optimize the price and delivery time to achieve a win-win goal.
We have a professional team to ensure the safety and timeliness of goods from production to delivery. According to the specific situation of customers to provide the best logistics solutions.
After more than 15 years of steel trade, we have a wealth of logistics transportation system and transportation expertise
