National free franchise hotline:


20x20mm Rectangle ​Steel Tubes For Structural Purposes

  • Structural steel pipes are hollow cylindrical tubes that are strong enough to transport chemicals and bear heavy weight loads, which is why they have numerous a···
  • Consultation hotline:+8618626313035
Recommended products
  • Product details

Structural steel pipes are hollow cylindrical tubes that are strong enough to transport chemicals and bear heavy weight loads, which is why they have numerous applications across a range of industries. Indeed, steel pipe is used in structural, manufacturing, and transportation applications.



Steel pipe is commonly used in the construction of buildings to provide extra strength and support. For instance, structural steel pipe can be used as end-bearing and friction piles, which are driven into the earth before a foundation is laid during construction to help transfer the heavy load of the building. Additionally, construction companies will often build scaffolding using steel pipe for workers to access various areas of the structure that is being built.



In the manufacturing industry, steel pipe can be used in numerous ways. It can be attached to stairways and walkways as guard rails to improve safety. It can also be used to channel raw materials into a work area for processing, and it can be fabricated to be a vital part of machinery and equipment.



Perhaps the most common usage of structural steel pipe is to transport substances from one place to another. Due to its inherent strength, steel pipes can handle hazardous materials without degrading, which is why they’re commonly used in oil and gas exploration and other chemical applications.


Product name20*20 Black Iron Square Tube /Black Square Steel Pipe
Outer diameter10*10 mm - 600*600 mm
Wall thickness0.6mm-25mm
Producing StandardASTM A500,JG 178-2005,JIS G3466,EN10210,GB/T6728-2002,GB/T6725-2002, GBT3094-2000,or according to technical protocol
Main MaterialASTM 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
TechnologySeamless; Or With seam
Surface TreatmentPaint oil; Varnish; Galvanized; Galvanize the raw strip steel; Or according to customer's requirements
PackageStandard export packing in bundle: Tied with steel trips, then wrapped by plastic material. Or according to customer's requirements.
UsageWidely used in mechanical manufacture, construction field, metallurgy industry, farm vehicles, agriculture greenhouse, automotive industry, railway, highway guardrail, container frame, furniture, decoration, steel structure etc


Q1. Are you a manufacturer or trader?

We are a manufacturer, and we can have our own factory produced many steel products.

Q2. Whether your company supports Trade Assurance order?

Yes, we can (100% product quality protection; 100% on-time shipment protection; 100% payment protection)

Q3. Can we get the some samples? Any charges?

Yes, you can get available samples in our stock. If the samples from new production, we will charge some reasonable cost, but this amount will be deducted from your first order.

Q4. How do we build up business relations with your company?

Send us your requirement which includes size, coating info, parameters, quantity, destination .

Q5. What is the MOQ?

We can accept small orders.Please feel free to contact us, we can meet your requirements.

Q6. What's your advantage?

With high-quality products and efficient customer service, we adhere to the principle of customer first.

Q7. How long is your delivery time?

Delivered within 15 days after receipt of deposit

Counselling:20x20mm Rectangle ​Steel Tubes For Structural Purposes
* Required

  • *