Seamless Square Tube
Date:2022-04-14View:617Tags:Seamless Square Tube
The seamless square tube is a square steel tube with four corners. It is a square steel tube formed by cold drawing and extrusion of a seamless steel tube. Steel pipes have hollow sections and are used in large numbers as pipes for transporting fluids. Compared with solid steel such as round steel, steel pipe is generally lighter in weight when the bending and torsional strength is the same. It is an economical section steel and is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, automobile transmission shaft, Bicycle racks and steel scaffolding used in building construction, etc. Making ring parts with steel pipes can improve the utilization rate of materials, simplify the manufacturing process, save materials and processing time, such as rolling bearing rings, jack sets, etc.
Process flow of seamless square tube:
Round steel → tube blank → inspection → heating → perforation → sizing → hot rolling → flat head → inspection → pickling → spherical annealing → cold drawing → forming → aligning → inspection
Classification of seamless square tubes:
1. Seamless square tubes can be divided into hot-rolled tubes, cold-rolled tubes, cold-drawn tubes, extruded tubes, etc. according to different production methods;
2. According to the shape, there are round tubes and special-shaped tubes. In addition to square tubes and rectangular tubes, special-shaped tubes also include oval tubes, semi-circular tubes, triangular tubes, hexagonal tubes, convex-shaped tubes, plum-shaped tubes, etc.;
3. According to different materials, it is divided into ordinary carbon structure pipe, low alloy structure pipe, high-quality carbon structure pipe, alloy structure pipe, stainless steel pipe, etc.;
4. According to the special purpose, there are boiler tubes, geological tubes, oil tubes, etc.
Advantages of seamless square tube:
1. Good overall performance
2. High cost performance
3. High tensile strength
4. Corrosion resistance
5. Good low temperature toughness
Weight calculation of seamless square tube:
Square tube weight calculation formula: 4*wall thickness*(side length-wall thickness)*0.00785
The formula for calculating the weight of the rectangular tube: (perimeter/3.14-wall thickness)*wall thickness*0.02466
Use of seamless square tube:
Widely used in 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, oil storage tanks, bridges, power station equipment, lifting and transportation machinery and other welded structural parts with higher loads.
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