Seamless square tube manufacturers tell you: the use and performance of seamless square tube

The seamless square tube is a four-cornered steel tube, and the square-shaped steel tube formed by cold-drawing seamless steel tube, and the seamless square tube and the welded square tube have essential differences. The steel pipe has a hollow section and is used in large quantities as a pipe for conveying fluid. The seamless square tube is a long strip steel with a hollow section and no joints around it. Compared with solid steel such as round steel, steel pipes have a lighter weight when subjected to the same flexural and torsional strength, and are economical cross-section steels. They are widely used in the manufacture of structural and mechanical parts such as oil drill pipes, automobile transmission shafts, and bicycles. Frames and steel scaffolds used in construction. The following seamless tube manufacturers will tell you: the use and performance of seamless square tube.

Seamless square tube

The seamless square tube is a four-cornered steel tube, and the square-shaped steel tube formed by cold-drawing seamless steel tube, and the seamless square tube and the welded square tube have essential differences. The steel pipe has a hollow section and is used in large quantities as a pipe for conveying fluid.

Compared with solid steel such as round steel, steel pipes have generally lighter weight when subjected to the same flexural and torsional strength, and are economical cross-section steels. They are widely used in the manufacture of structural parts and mechanical parts such as oil drill rods and automobile transmission shafts. Bicycle racks and steel scaffolds used in construction. The use of steel pipes for the manufacture of ring-shaped parts can increase the material utilization rate, simplify the manufacturing process, and save material and processing man-hours such as rolling bearing rings and jack sleeves. In 2013, it was manufactured using steel pipes. Steel pipe is also an indispensable material for various conventional weapons. The barrels, barrels, etc. must be made of steel pipes. Steel tubes can be divided into round tubes and shaped tubes according to the shape of the cross-sectional area. Due to the equal circumference conditions, more fluid can be delivered with round tubes. When the ring cross section is subjected to internal or external radial pressure, the force is more uniform, and most of the steel tubes are round tubes.

The use of seamless square tube

Seamless square tube as a square tube has been widely applied to all walks of life. Its production process is the same as the production process of seamless steel tube. It is only non-seamless. The square tube is square and not round, and Their molding methods are also different.

The seamless square tube is an empty section surrounded by long steel joints. The seamless square tube can transport fluid. The only thing that is unique to steel tubes is that it is mainly used for special requirements such as transporting petroleum. , Gas, gas, liquefied gas, etc., its strength determines its use, the higher the strength, the better the toughness. The seamless rectangular tube is not only profitable, but also has a very square tube, the strength is good or bad is mainly steel Good or bad, and the later processes are all about the same. Each production plant has a fixed pattern.

When purchasing steel, it is very particular about not only selecting the steel that can be produced, but also selecting the economical steel, so that it can not only affect the quality of the production but also guarantee the profit. At present, there is an economical section steel on the market, which is widely used. In the manufacture of structural parts and mechanical parts, such as drill rods, automotive transmission shafts, butterfly buckles, scaffolding and other products.

Seamless square tube main performance

Plasticity

Plasticity refers to the ability of a metal material to undergo plastic deformation (permanent deformation) without breaking under load.

Hardness

Hardness is a measure of the degree of hardness and hardness of metallic materials. At present, the most commonly used method for measuring hardness in production is the press-in hardness method. It uses a certain geometric shape of the indenter to press the surface of the tested metal material under a certain load, and the hardness value is determined according to the degree of press-in.

The commonly used methods are Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and Vickers hardness (HV).

Fatigue

Strength, plasticity, and hardness are all indicators of the mechanical properties of metals under static loading. In fact, many machine parts work under cyclic loading, under which conditions the parts will fatigue. There must also be special steel tubes with other cross-sectional shapes.

4. Welded steel tubes for low pressure fluid delivery (GB/T3092-1993) are also known as general welded tubes, commonly known as black tubes. It is a welded steel pipe used for the transportation of water, gas, air, oil and heating steam, and other generally lower pressure fluids and other uses. The wall thickness of the steel pipe is divided into ordinary steel pipe and thick steel pipe; the pipe end is divided into non-threaded steel pipe (light pipe) and threaded steel pipe. The specification of the steel pipe is expressed by the nominal diameter (mm), and the nominal diameter is the approximate value of the internal diameter. Commonly used in inches, such as 1 1/2 and so on. The welded steel pipe used for low-pressure fluid transportation is not only directly used for conveying fluids, but also used as a raw pipe for galvanized welded steel pipes for low-pressure fluid transportation.

5, galvanized welded steel pipe for low pressure fluid delivery (GB/T3091-1993) also known as galvanized welded steel pipe, commonly known as white pipe. It is a hot-dip galvanized welded (furnace or welded) steel pipe for general low pressure fluids such as water, gas, air oil, heating steam, and warm water. The wall thickness of the steel pipe is divided into ordinary galvanized steel pipe and thick galvanized steel pipe; the pipe end is divided into non-threaded galvanized steel pipe and threaded galvanized steel pipe.

6. Ordinary carbon steel wire bushings (GB3640-88) are steel pipes used to protect electric wires in electrical and industrial installations such as industrial and civil buildings and installation machinery and equipment.

7. Straight seam welded steel pipe (YB242-63) is a longitudinally parallel steel pipe between the weld and the steel pipe. Usually divided into metric welded steel pipe, welded thin-walled pipe, transformer cooling oil pipe and so on.

8. Spiral seam submerged arc welded steel pipe for pressure fluid transport (SY5036-83) is a hot rolled steel strip for tube blank, which is heated at regular temperature by spiral molding and welded by double-sided submerged arc welding method for pressure fluid transport. Spiral seam steel pipe. The steel pipe has strong pressure bearing capacity and good welding performance. After various rigorous scientific tests and tests, it is safe and reliable to use. Large diameter steel pipe, high transmission efficiency, and can save investment in laying pipelines. Mainly used for the transportation of petroleum and natural gas pipelines.

Summary: The relevant information on the use and performance of the seamless square tube is introduced here for everyone. I hope this article will be helpful to everyone. If you still have something you don't understand, you can leave a message to Xiaobian at the bottom. We will answer your questions as soon as possible.

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