The difference between square tube and square steel mainly lies in concept, classification and use.

In order to better increase the use time of the rectangular tube and reduce the cost, we have done maintenance in the whole process of assembly, so what should be paid attention to when installing the rectangular tube?

Commonly used seamless elbow forming processes include hot pushing, stamping, extrusion, etc.

The square tube is made of strip steel through process treatment and can be divided into seamless and welded; its performance index analysis includes plasticity, hardness, fatigue, impact toughness and strength.

Stainless steel seamless pipes are now used more in life. Many water transportation and gas transportation are carried out by stainless steel seamless pipes, and its role is more than that, but long-term use will also If it affects it, we also need better steps to maintain it in the maintenance process. Let's talk about how to maintain the stainless steel seamless pipe.

The variety and specifications of galvanized square pipes have been increasing, and have replaced other square pipes in more and more fields. Do you want to know how to store the galvanized square pipe?

Square tube is a kind of steel pipe made of hot-rolled or cold-rolled galvanized strip or galvanized coil as blank, which is formed by cold bending and then welded by high frequency. What are the precautions for heat treatment of square tube?

Piling pipe is a steel pipe made of steel plate or strip steel after crimping and welding.Widely used in natural gas, petroleum, chemical industry, electric power, heat, water supply and drainage, steam heating, penstock for hydropower stations, thermal power generation, water sources and other long-distance pipelines and piling, bridges, steel structures and other engineering fields.

Rectangular tube is a kind of hollow long steel, also known as flat tube, flat square tube or square flat tube. When the bending resistance and torsional strength are the same, the weight is lighter, so it is widely used in the manufacture of mechanical parts and engineering structures.

Compared with structures made with open sections, steel tube structures can save about 20% of steel in industrial buildings and about 50% in tower structures. According to the force state of the parts, supply conditions, production and processing conditions and costs, the structure of the steel pipe can be a round pipe structure or a rectangular pipe structure, or a mixture of two steel pipes.

The square tube sizing method is an important factor in determining the outer diameter tolerance of the steel tube. Longitudinal rolling and sizing square pipe, the outer diameter accuracy of steel pipe can reach about 1%, while skew rolling sizing square pipe has a high outer diameter accuracy of 0.5%.

The reason why the q235b rectangular pipe is cold drawn is to better promote the hardness of the product, so as to better ensure the quality of the pipe, so that users can use it better. Because the cost of cold drawing is slightly higher, the price of the pipe will also be higher rose slightly.

Oil casing tubing is the lifeblood of oil well production. In the downhole, in view of the difference in geological conditions, the downhole stress conditions are complex, and the comprehensive effects of tension, compression, bending, and torsion have raised the requirements for the quality of the casing itself.

In the cutting of 16mn square tube, the phenomenon of uneven incision, deformation and cracking of the incision often occurs. How can we solve the problem of cutting the 16mn square tube?

Stainless steel welded pipe is the most used equipment in life now, but there will be certain defects in the process of processing and welding. These defects will lead to stress concentration, reduce the bearing capacity, shorten the service life, and even cause brittle fracture. This will affect the quality of the finished product.

People often think that magnets attract alloy pipes to verify their pros and cons and their authenticity. If they do not attract and have no magnetism, they are considered to be good and genuine; those who attract magnets are considered to be counterfeit and fake. In fact, this is an extremely one-sided, unrealistic and wrong identification method.

42CrMo seamless steel pipe is an ultra-high-strength steel with high strength and toughness, and good hardenability.

Q345C rectangular tube has the ability to resist atmospheric oxidation, and also has the ability to resist corrosion in the medium containing acid, alkali and salt; but the size of its anti-corrosion ability depends on the chemical composition of the steel itself, the mutual state, and the conditions of use. and environmental media type.

The most common defect of stainless steel welded pipe is the uneven wall thickness of the pipe.The eccentricity of the wall thickness of the stainless steel welded pipe will bring a series of adverse effects on the strength of the steel pipe and further cold working, thus affecting the economic benefits. When rolling large-diameter thick-walled stainless steel pipes, the local reduction increases, causing cracks and mechanical failure of the rolling mill.

Hollow section annealing can maintain bright appearance and dimensional accuracy, and annealing of cold-rolled strips with no surface oxidation and no decarburization in a protective atmosphere.