ERW, ERW Welded Cold Rolled Q235 Rectangular/Square Carbon Steel Pipe/ Tube

Basic Info
  • Model NO.: square carbon steel pipe/ tube

  • Technique: ERW

  • Surface Treatment: Black

  • Section Shape: Square

  • Grade: Q195-Q345, Q235

  • Outside Diameter: 20*30-600*800mm

  • Technology: ERW

  • Delivery Time: 15~20 Days

  • Payment: L/C, T/T

  • Package: Standard Export Packing

  • Origin: Tianjin, China

  • Type: Welded

  • Material: Carbon Steel

  • Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose

  • Commodity: Square Pipe

  • Wall Thickness: 1.5-10.5mm

  • Length: 1~12m

  • Weld Points: Straight Welded Pipe, Spiral Welded Pipe

  • MOQ: 5mt


Product Description
1)Thickness: 1.5-10.5mm

2)Size(dia. ): 20*30-600*800mm

3)material: Q195-Q345, S235JR, S275JR, S355JR, S355J2H, STK400/500.

1) size : 20*30-600*800 
2) the chemical composition of raw materials the mechanical property of raw materials
itemChemical composition %Itemmechanical property
pre galv steelC %Mn %S %P %Si % steelyield point Mpatensile strength Mpaelongation %
BS13870.06-0.120.25-0.50< 0.050< 0.045< 0.30 BS1387> 195315-43032-33
3) surface treatment: pre galvanized
4) end treatment: plain , threaded   
5) test:chemical component analysis, mechanical properties ,technical properties
6)application:transmission of gas .water .petroleum, part furniture making
7)certificate: SGS or BV inspection
8)delivery time: usually in 20--30 days
9) payment term: T/T , L/C

Here we list some regular sizes of galvanized steel pipe round and square we often produce.
ShapeRound Square Rectangular
1 1/4"400.8-2.340*400.8-2.025*400.8-2.0
1 1/2"471-2.350*500.8-2.030*400.8-2.2
2 1/2"751.1-2.080*801.1-1.840-*601.0-2.0
4"1141-2.2  50*1001.0-2.0
5"1401.1-2.5some size not list here also can be produced ,
just contact us for detalis.


1. ISO System
2. SGS and BV Audited company.
3. Industry experience over 10 years.
4. Management Systems-Internal Software
5. Finished Product Inventory-More Than 500 Tons.
6. Raw Material inventory -Over 800 Mertic Tons.
7. Shipment of goods -More than 30 countries worldwide.
8. We have the most convenient transport and prompt delivery.
9. We offer competitive price with best service.
10. We have high technical production line with top quality products.
11. We have win high reputation based on best quality products.

Our service:

1. Reply your enquiry in 24 working hours.

2. Experienced staffs answer all your questions in professional and fluent English.

3. Exclusive and unique solution can be provided to our customer by your our well-trained and professional engineers and staffs

4. Special discount and protection of sales area provided to your distributor.

ding open account terms. Check our Flexible Payment Terms page to see the full list.