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Hollow Section & Tube

Short Description:

Production Technology:

Electronic Resistance Welded (ERW);

Electronic Fusion Welded (EFW);

Double Submerged Arc Welded (DSAW)

 

Minimum Order Quantity:


Product Detail

Product Tags

Product Information
Parameters
Feature
Production Process
Application
Competitive Advantage
Product Information

A hollow section is a steel tube with equal side lengths. It is made of strip steel that has been processed and rolled. Generally, the strip is unpacked, flattened, coiled, welded to form a round tube, and then rolled into a square tube from the round tube and then cut to the required length. Most of them are structural hollow sections, decorative hollow sections, architectural hollow sections, etc.

Parameters
Size OD 15mm*15mm to 400mm*400mm
Wall Thickness 0.5mm-12mm
Length Length can be customized,Maximum 12M
 Steel material Q195→Grade B, SS330, SPHC, S185
Q215→Grade C, CS Type B, SS330, SPHC
Q235→Grade D, SS400, S235JR, S235JO, S235J2
Q345→SS500, ST52
  Standard BS1387, BS EN10297, BS EN10219;
ASTM A53-2007, ASTM A335-2006;
GB/T3091-2001, GB/T3090-2000.
  Usage Used For Structure, Accessorize And Construction
  Ends   1.Plain 2. Beveled
Surface
Treatment
1. Bared 2.Black Painted (varnish coating) 3.Non-Galvanized
Technique 1. Electronic Resistance Welded (ERW);
  2. Electronic Fusion Welded (EFW);
  3. Double Submerged Arc Welded (DSAW).
  Inspection   With Hydraulic Testing, Eddy Current , Infrared Test
  Section Shape   Square,Rectangle
  Package   1. In Bundle 2. In Bulk 3. Cloth Coating 4. Clients’ Requirements
  Port of Shipment   Xingang Tianjin, China
  Date of Delivery   According To The Quantity And Specification Of Each Order
  Payment Terms   30% T/T or L/C at Sight
Feature

1.It has good compression resistance and is not easy to break.

2. Good toughness, not easy to bend.

3. Strong material and long service life.

Production Process

1. The hollow section must be made on a special inlet assembly line to ensure the accuracy of the air duct fabrication and the airtightness of the square tube.

2. The blanking of Rectangle Steel Tube fittings should be fully automated on imported special machines using computer software, and the automatic plasma cutting process should be completed on imported sheet metal special plasma cutting machines.

3. The bite connection of the Rectangle Steel Tube should adopt the imported automatic bite device for the bite process.

4. The connection between the Rectangle Steel Tube body and the plug-in flange should adopt the rivet-free connection process, and the imported equipment should be used for the rivet-free connection process.

5. The connection flange of the Rectangle Steel Pipe should adopt the connecting plate flange and the plug-in flange connection process. When the length of the large side of the air duct is less than or equal to 2000mm, the connection form of the common plate flange should be used, and the length of the large side of the air duct should be greater than or equal to 2000mm. When the diameter is 2000mm and less than or equal to 2500mm, the connection form of plug-in flange should be adopted. The rectangular air duct should be mechanically pressed with reinforcing ribs, and the spacing between the reinforcing ribs should be about 300mm.

Application

Construction, machinery manufacturing, steel construction and other projects, shipbuilding, solar power brackets, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, boiler construction, highway railings, housing construction, pressure vessels , Petroleum storage tanks, bridges, power station equipment, lifting and transportation machinery and other welded structural parts with higher loads.

Competitive Advantage

Details picture

Bs Standards Steel Pipe

Customize

Length can be customized according to customer needs

Packaging

Various packaging forms, can be packaged according to customer needs

Hot Dip Galvanized Steel Pipe
 Steel Pipe For Liquid

Quality

The product is of good quality, sturdy and durable, with a long service life

Application

Rectangle Steel Pipe

Engineering Construction

Rectangle Steel Tube

Shipbuilding Industry

Low Carbon Steel Pipe

Solar Power Station Support Frame

FAQ

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