Steel Knowledge

What Is JCOE Pipe?

Straight seam double-sided submerged arc welded pipe is JCOE pipe. Straight seam steel pipe is classified into two types based on the manufacturing process: high frequency straight seam steel pipe and submerged arc welded straight seam steel pipe JCOE pipe. Submerged arc welded straight seam stee... Read More

Square tube industry tips

Square tube is a kind of hollow square section shape steel tube, also known as square tube, rectangular tube. Its specification is expressed in mm of outer diameter * wall thickness. It is made of hot rolled steel strip by cold rolling or cold drawing. Use of seamless square pipe: Seamless square... Read More

What are the main cutting methods for rectangular tubes?

The following five cutting methods of rectangular tubes are introduced: （1） Pipe cutting machine The pipe cutting machine has simple equipment, less investment, and is widely used. Some of them also have the function of chamfering and automatic loading and unloading and aggregate devices. Pipe ... Read More

What is the cause of square tube cracking?

  1. It is mainly the problem of base metal. 2. Seamless steel pipes are not annealed square pipes, which are hard and soft. It is not easy to deform due to extrusion and is impact resistant. High reliability of installation, no embrittlement under gas and sunlight. 3. Weather resistance and... Read More

What factors will affect the feeding accuracy of square tube?

During the production of square and rectangular tubes, the feeding accuracy directly affects the accuracy and quality of the formed products. Today we will introduce seven factors that affect the feeding accuracy of rectangular tube: （1） The center line of the feeding device and the center line... Read More

Dn、De、D、d、 Φ How to distinguish?

Pipe diameter De, DN, d ф Meaning Read More

What are the advantages of general seamless square tube?

Seamless square and rectangular tube has good strength, toughness, plasticity, welding and other technological properties, and good ductility. Its alloy layer is firmly attached to the steel base. Therefore, seamless square and rectangular tube can be formed by cold punching, rolling, wire drawin... Read More

Production process of hot-dip galvanized steel pipe

Hot dip galvanized steel pipe, also known as hot dip galvanized pipe, is a steel pipe that is galvanized for general steel pipe to improve its service performance. Its processing and production principle is to make the molten metal react with the iron substrate to produce an alloy layer, so that ... Read More

What are the methods for heat treatment of straight seam steel pipe?

What are the methods for heat treatment of straight seam steel pipe? First of all, the layout design of technical molds should be reasonable, the thickness should not be too different, and the shape should be symmetrical. For molds with large deformation, the deformation rules should be grasped, ... Read More

How to Select High Quality Square Tube?

Square tube is a kind of material commonly used in the industrial construction industry, with a large demand. There are many square tube products on the market, and the quality is uneven. Attention should be paid to the selection method when selecting: Read More

How thick is the galvanized square tube to meet the design requirements of steel structure?

It is well known that the quality of galvanized square and rectangular tubes and the installation method directly affect the stability of steel structures. At present, the support materials on the market are mainly carbon steel. The raw materials of carbon steel are generally Q235 and Q345, which... Read More

Application of Galvanized Rectangular Pipe in Construction Engineering

As a common decoration construction material in our modern life, galvanized square tubes can be said to be widely used. Because the surface is galvanized, the anti-corrosion function can reach a better standard, and the anti-corrosion effect can be better played in the construction project, so th... Read More
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