Steel Pipe Exporter

Steel tube   is used in a variety of structural and industrial applications, such as automobile transport, architecture, and construction. These steel tubes are made of different steel structures, from stainless steel, carbon, zinc or soft steel, depending on the application requirements. Steel tubing is divided into two classes: mechanical and structural, depending on its design. So what is the difference between mechanical and structural steel tube? Below are some points to consider while differentiating the two types of steel tubing. The comparison is made on the basis of application, specification, and shape. Comparison between mechanical and structural steel tube Application: Mechanical tubing is used in low stress and light gauge structural applications. These applications include conveyor belt components, solar panel supports, greenhouse structures, kitchens and restaurants, hospitals and medical equipment, and various types of industrial machinery. Structural tubin...

In addition to scratches on the surface of the high-frequency   welded steel pipe   caused by the guide rollers, there is also a scratch caused by the squeezing roller. This type of scratch occurs mainly at the bottom of the tube. There are roughly three reasons for this, as follows: First, the hole type does not match Caused by high-frequency welded steel pipe surface scratches and holes are not consistent with the factors: 1.Squeeze roller bearing damage; 2.Squeeze roll hole size is not the same; 3.squeeze roller axial turbulence; 4.The height of the two squeeze rollers is different; 54 extrusion roller shaft bending and assembly instability. Second, the squeeze roller height does not match The lower edge of the squeezing roll pattern should correspond to the height of the rolling line, and the height of the guide roll is determined by the wall thickness of the tube. If the guide roller is too low, the rounded corners of the squeeze roller hole will scra...

How many kinds of   welded steel pipe   are there? 1,   LSAW pipe   features: welding under static conditions, high weld quality, short welds, the probability is very small defects. By expanding full-length steel tubular good, precise size, wide range of pipe wall thickness and diameter range, the diameter range up 406-1829mm, wall thickness range up 6.0-60mm, high degree of automation, Compared to seamless steel, it is lower production costs, for buildings, bridges, dams, offshore platforms and other steel bearing with columns, large span structures as well as wind and seismic requirements for electrical tower mast structure. 2, High frequency welded steel pipe features: tubular good, uniform thickness, internal and external burrs produced by the welding tool calibrating the appropriate online through strict control of non-destructive testing of weld quality, high degree of automation, low production costs. But relatively thin wall thickness, diameter is rela...

What are the possible causes of stress concentration in welded joints? a. Process defects in the weld, such as pores, slag inclusions, cracks, and incomplete penetration, where the stress concentration caused by cracks and incomplete penetration is severe. b. Unreasonable weld seams, such as butt weld seams that are thicker and oversized, can create significant stress concentrations. c. Unreasonable design of welded joints, such as abrupt changes in the cross section of the joints, butt joints with cover plates, etc., can cause serious stress concentrations. Improper welds may also cause stress concentration. What are the adverse effects of stress concentration on the welded structure? how to improve? 1. Excessive stress may even cause cracks in the solder joints, causing potential safety hazards. 2. Deformation of components, such as the rack of some equipment, will be processed before the stress is not eliminated. In the subsequent use process, it cannot be used due to...

In addition to scratches on the surface of the high-frequency   welded steel pipe   caused by the guide rollers, there is also a scratch caused by the squeezing roller. This type of scratch occurs mainly at the bottom of the tube. There are roughly three reasons for this, as follows: First, the hole type does not match Caused by high-frequency welded steel pipe surface scratches and holes are not consistent with the factors: 1.Squeeze roller bearing damage; 2.Squeeze roll hole size is not the same; 3.squeeze roller axial turbulence; 4.The height of the two squeeze rollers is different; 54 extrusion roller shaft bending and assembly instability. Second, the squeeze roller height does not match The lower edge of the squeezing roll pattern should correspond to the height of the rolling line, and the height of the guide roll is determined by the wall thickness of the tube. If the guide roller is too low, the rounded corners of the squeeze roller hole will scra...

The pressure welded steel pipe consists of pipe, pipe fittings which include elbow, tee joint, taper pipe and other fittings, valve, flanged joint (flange, spacer as well as bolts), and these composition pieces are generally standard components, which can be fully decided by several factors such as their nominal pressure, texture of material, nominal diameter as well as wall thickness of the   Welded steel pipe . And the nominal pressure of all the piping components in the same pipeline pressure grade. Thus, the nominal pressure grade of the piping components are called pipeline pressure grade in engineering. The pipeline material grade is the piping components selecting and using regulations established by the designing institute or the engineering companies. And it is always given in the form of the excel sheet. In addition, the engineering and technical staff can make sure the detail specific provision of all kinds of dimensions and specifications of the piping components o...

The total zinc coating condition applied depends mainly on the mass and thickness of the galvanized steel tubing. Usually the surface of the galvanized layer should be complete and uniform and with a standard thickness. The evaluation of the appearance quality of the galvanized layer is very important. The following listed the common surface conditions of the galvanizing layer for   galvanized steel pipe . 1. Gray and dark-gray cobwebbing The chemical elements of the steel tube such as C, Si, P and Mn will cause Fe-Zn alloy reaction with the increase of the content, produced zinc-iron alloy layer on the coating surface, especially with Si increased, which accelerate the reaction of iron-zinc melt mutually, formed on the surface of gray even the black net. The black coating layer is thicker than the bright coating, the corrosion protection and prevention ability completely inferior to the bright coating, but will be more resistant to corrosion but may not pretty sensually. Ho...

Q235 is not only the material for the production of galvanized steel pipe frame, but also the only standard for inspecting the quality of the pipe rack, and also the standard for inspecting the quality of the pipe rack. Q235 includes carbon C: ≤0.20% Si Si: ≤0.35%, manganese Mn: 0.3 ~ 0.7%, sulfur S: ≤0.045%, phosphorus P: ≤0.045%, chromium Cr: to allow the residual content of ≤0.30%, Ni: to allow the residual content of ≤0.30%, copper Cu: to allow the residual content of ≤0.30%, Q235B a certain elongation, strength , good toughness, easy stamping and welding, widely used in the manufacture of mechanical parts in general. Mainly used in construction, the bridge engineering and high quality welded structure. Q235 Material galvanized pipe Therefore, the use of materials Q235   galvanized steel pipe , rack tube material is divided according to: 1. A single standard steel pipe rack: it is a steel pipe with the same specifications (example: scaffolding fasteners such as:. Ф48...

Oil pipeline 3PE anti-corrosion steel pipe advantages: 1, long service life Polyethylene pipe has the highest molecular weight, with good stability and anti-aging properties, under normal operating temperature and pressure conditions, the service life can be guaranteed for more than 50 years. 2, corrosion resistance Polyethylene molecular structure of high stability, resistance to natural gas, liquefied petroleum gas, artificial gas and other chemical corrosion, without secondary corrosion protection equipment. The chemicals present in the soil do not cause any degradation of the tubing. 3, with excellent impact resistance, seismic resistance Polyethylene low temperature embrittlement temperature is very low, can be -60 ℃ ~ 60 ℃ temperature range of safe use, uneven subsidence of the pipe base has a very strong adaptability. Winter construction, due to the material impact resistance, will not happen brittle pipe. 4, good flexibility Polyethylene pipe is - kind of high toughn...

The round steel tube is a steel that is open at both ends. It has a hollow concentric circular section, which is quite large relative to the circumference.It can be used in pipelines, thermal equipment, machinery industry, petroleum geological drilling, containers, chemical industry and special applications. Classification of round steel pipe According to production methods can be divided into seamless round steel pipe and welded round steel pipe. Seamless round steel pipe manufacturing process Tube Blanks - Inspection - Peeling - Inspection - Heating - Perforation - Pickling - Grinding - Lubrication Air Drying - Welding Head - Cold Drawing - Solution Treatment - Pickling - Pickling Passivation - Inspection Welding round steel pipe manufacturing process Strip - Inspection - Shear - Length - Qualitative - Welding - Smoothing - Length - Inspection Check www.tjxysteel.com for more info. Contact Email: marketing@xysteelpipe.com .