
Structural Steel Square Tube
OD: 15-500MM
Thickness: 0.5-20MM
Material: Q235, Q355, STK400, STK490, S235JRH, S275J2H, S355J2H, GR.A/B, X42-X70
Gnee Steel (Tianjin) Co., Ltd. is one of the most reliable manufacturers and suppliers of structural steel square tube in China, also supports customized service with low price. Welcome to wholesale discount structural steel square tube for sale here from our factory. Contact us for free sample.
Structural Steel Square Tube
Square pipe, also known as square tubing, refers to steel pipes with equal sides. It is made from a strip of steel that undergoes a rolling process. The material used for square pipes includes both ordinary carbon steel and alloy steel, resulting in two main types: plain carbon steel square pipes and low alloy steel square pipes. Plain carbon steel types include Q195, Q215, Q235, SS400, 20# steel, and 45# steel, among others. Low alloy steel types include Q345, 16Mn, Q390, ST52-3, and others.
Structural Tube Specification
|
OD |
15-500MM |
|
Thickness |
0.5-20MM |
|
Material |
Q235, Q355, STK400, STK490, S235JRH, S275J2H, S355J2H, GR.A/B, X42-X70 |
|
Steel Grade |
Q195-Q345, 20#,16Mn,ect |
|
Standard |
BS1387, ASTM A53, API 5L, JIS G3444, BS EN39, EN10219 |
|
Pipe end |
plain end, beveled, threaded with coupling, grooved; Surface: oiled, painting, anti-corrosion |
|
Lenght |
2-12M,Customer customization |
|
Packing |
In bundle or according to the customers'requirements |
|
Delivery time |
20-30 days after reveipt customers' deposit |
|
Productivity |
3000 Meteric Tons per Month |
|
Remark |
1.Payment terms :T/T,L/C
2.Terms of trade:CFR,CIF |
|
Application |
Building construction, oil and gas transport, scaffoliding or prop, fire pipe |
|
Certificate |
ISO 9001, API 5L, CE |
Steel square tubing


FAQ
Q: Can your factory provide customized services?
A: Yes, we offer a wide range of customized services, from small parts to large steel pipes.
Q: Do you offer OEM services?
A: Yes, we provide both OEM and ODM services.
Q: I am interested in your products. Can you provide free samples?
A: Certainly! Please send us your requirements, and we will arrange for samples.
Q: What are your payment terms?
A: Typically, a 30% deposit is paid by wire transfer, with the remaining 70% paid before shipment. (This may vary depending on the price of raw materials.)
Q: Can you provide videos so we can see the production line in action?
A: Of course! Please contact us via our contact form, and we will send you a video of our production line.
Q: What is the delivery time?
A: Delivery time depends on the product specifications and the quantity you need. It is usually 7-15 days.
Q: What about after-sales service?
A: Most products come with a 1-year free warranty and lifetime technical support. For more details, please contact us.
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