48.3mm 3.2 mm Thickness Galvanized Steel Scaffolding Tube

48.3mm 3.2 mm Thickness Galvanized Steel Scaffolding Tube

Seamless square steel tube is manufactured based on seamless round pipe after cold forming to be square steel tubing.
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Product Details

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Seamless square steel tube is manufactured based on seamless round pipe after cold forming to be square steel tubing. Seamless square hollow section is widely used in machine manufacturing, construction, metallurgical industry, agricultural vehicle, greenhouse, railway, furniture and other steel construction. The main application of S355JRH Seamless Square Steel Tube is that transporting routes for gas, oil, chemical materials, water, steam and other gas or liquid.

detailed description


S355JRH Seamless Square Steel Tube

Outer Diameter


Wall Thickness



5.8 meters, 6 meters,12 meters


Q195,Q215,Q235,SS400,20#,ST37,ST52,Q345,16Mn,S275,S355,S275JR,S355JR,S275JRH,S355JRH,S355J0H,A500 Gr.B,A53 Gr.B


Comply with the standard


EN10025,DIN 17100, GB/T3094, GB/T6728,ASTM A500,EN10219


As rolled, Mill finished, Black painting



product picturesour advantage

our advantage

quality control

quality control

packing and delivery


mill and equipments


certificate and customers


container loading capacity

container loading capacity


FAQ-How to Prevent Steel Rusting

why choose us

why choose us



more details of product

Seamless square tube is a hollow section surrounding no juncture of strip steel. Tube is hollow, has set a certain cross-sectional area, a large number of used for conveying fluid tube, such as oil, natural gas, coal gas, water and some solid materials, such as tube lines, circle cross section under radial pressure, the internal or external stress is relatively uniform. Therefore, the vast majority of square steel tube is round tube. But round tube also has some limitations, such as in the plane bending condition, the tube is not square, rectangular tube bending strength is big. Some agricultural machinery and skeleton rectangular tube and steel wood furniture is commonly used. Seamless square tube is also used in making mechanical equipment, solar energy equipment, steel structure, auto parts, bridge pile, guardrail and ship's internal structure. We have developed our core competence in the manufacturing and supplying of high quality S355JRH Seamless Square Steel Tube hollow sections that are engineered according to the specifications of our clients. Product innovation and quality control has helped us meet the ever expanding demands of the industry.

Application for S355JRH Seamless Square Steel Tube :

1. Widely used in furniture

2. Building and construction Industry, chimney pot

3. Petrol, gas, water pipe, delivery

4. Residence, gardens, villas, fence or protection

We have won the unanimous approval of our customers for our exquisite 48.3mm 3.2 mm Thickness Galvanized Steel Scaffolding Tube, as well as advanced technology, excellent quality and careful service. Economic globalization and the rapid development of science and technology have created unprecedented technical conditions for the development of our company. Our company constantly strengthens the strategic concept of talent strengthening enterprise, and actively innovates four mechanisms of talent introduction, cultivation and development.
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