Seamless Steel Pipe

　　Preheating means a process that heat weldments in whole or in weld areas before welding. Particularly good material for welding high strength level, hardening tendency of steel, thermal conductivity, thickness larger weldments, and when the ambient temperature is too low,welding zone often requires butt to warm up before welding. 　　The purpose of preheating is to reduce the speed of the cooling of the welded joints and preheating temperature. It can be seen from the table, warm-up can reduce the cooling rate, but did not influence the time to stay in the high temperature, which is very desirable. So when welding steel with a hardening tendency, to reduce the cooling rate decreases the hardening tendency of the main process measures, is to warm up, rather than increase the energy input. 　 　Check www.tjxysteel.com for more info

　　The oil special pipe is mainly used for drilling oil and gas wells and conveying oil and gas. It includes oil drill pipes, oil casing, and oil pipes. Oil drill pipes are mainly used to connect drill collars and drill bits and transmit drilling power. The oil casing is mainly used for supporting the well wall during and after drilling to ensure the drilling process. And the normal operation of the entire well after completion. The oil pipe mainly transports the oil and gas at the bottom of the oil well to the ground. 　　Oil casing pipe is the lifeline for maintaining oil well operations. Due to different geological conditions, the state of the downhole is complicated, and the combined action of tension, compression, bending and torsion stress acts on the pipe body, which puts high requirements on the quality of the casing itself. Once the casing itself is damaged for some reason, it may result in a reduction in production and even scrapping of the entire well. 　　According to the st...

　　1. Control the carbon content in the steel as much as possible to avoid the peritectic reaction zone and the upper or lower control limits. 　　2. The vibration stability should be monitored to ensure that the lateral deflection of the vibration is not more than 0.2 mm and the longitudinal deflection is not more than 0.4 mm. 　　3. Strict nozzle assembly ensures good nozzle alignment, prevents drift, and ensures uniform solidification of shaped pipes. 　　4. Improve the accuracy of the fan section, especially the mold and the zero part. If severe bending is found, replace the zero part of the pinch roller. 　　5. Control the superheat of the steel in the 45# seamless steel tube , determine the appropriate drawing speed system, and prevent the outer casing from being too hot and the drawing speed too thin. 　　6. Select the appropriate slag according to the characteristics of the special steel pipe, appropriately increase the viscosity of the mold slag, improve the heat transfer unifo...

　　There are some ways to store stainless steel pipe (ss pipe): 　　1. Choose the right place and warehouse 　　1) The storage of stainless steel pipes for the site or warehouse should be selected in a clean and drained place, away from the production of harmful gases or dust and mining factories. In place to remove weeds and all debris, keep the steel clean. 　　2) In the warehouse, it is forbidden to stack materials that are corrosive to the stainless steel pipe with acid, alkali, salt and cement. Different varieties of stainless steel tubes must be stacked separately to avoid confusion and avoid contact with corrosion. 　　3) Large steel, rail, shameful steel, large diameter steel tube, forged parts, etc. They can be stacked to open. 　　4) Small and medium steel, wire rod, steel bar, medium gauge steel tube, steel wire and steel cable, etc., can be stored in a well ventilated shed, but must be in the mat. 　　5) Some small stainless steel tubes, sheet steel, silicon steel, small di...

　　Steel pipes are ideal for transporting fluids such as gas, water, air and waste. They have excellent properties, which allows them to adapt to any type of application and installation. 　　There are two types of steel pipes, seamless steel pipes and welded steel pipes. Seamless steel pipes are manufactured through the passage of liquid steel through a rod to create a hollow tube. They offer a series of advantages that guarantee the effectiveness of the process or installation. In Bestar, we share some of the main advantages: 　　Because they have a much more homogeneous microstructure, seamless steel pipes are capable of withstanding high pressure levels. 　　These tubes manage to maintain their round cross section, so the installation, as well as the addition of accessories to the pipe is much simpler. 　　Unlike seamless pipes, seamless steel pipes are much more efficient and firm. 　　These types of pipes have fewer points of failure. Therefore, pressure calculations are easier t...

　　Thick-walled seamless steel pipes are common in our lives. Thick-walled seamless steel pipes are a kind of seamless steel pipes. They are also widely used, and they play an important role in machine manufacturing and pipeline transportation, although the same week. In the long run, their cross-sectional area is not as large as that of a circular seamless steel pipe, and there is a difference in flow rate, but in order to be able to carry out engineering or production under various conditions, it is necessary to apply a thick-walled seamless steel pipe. The following is an introduction to how to judge the quality of thick-walled seamless steel tubes. 　　It has an advantage in weight and high strength, and even some strength will be higher than normal tubes. The quality of thick-walled seamless steel tubes can be approximated by surface observations in addition to measurements by instruments. First of all, look at the tube wall for indentation or cracks. The slight indentation will af...

　　In today's fast-paced daily life, we do not even realize the importance of structural items have, whether in large works or simple objects. However, anyone who needs steel pipe for a given project knows very well how fundamental it is. 　　In medical equipment, in automobiles or within the walls of the building where we live, steel tubes are present. Even at exhibitions of contemporary fine art they get featured. 　　If you want to know more about the advantages of carbon steel pipe , you have come to the right place. Today we will see what are the main sectors that make use of this type of part. Come on! 　　Advantages of Using Steel Pipe 　　It is no coincidence that Superman is known as the "man of steel," isn't it? 　　The carbon alloy iron used in piping allows for efficient support in infrastructure works. Check out some of its advantages: 　　Resistance even to fire 　　Great durability 　　Great relation between cost and benefits 　　Oxidation and corrosion ...

　　We supply ASTM A312 Grade 304L, 316L, 316ti, 321 / H, 347 / H, 304H, 904L Stainless steel pipes are often used in applications requiring rigid materials for the transport of drinking water and food. 　　Manufacturers select stainless steel because certain synthetic materials have unwanted or unknown exposure effects while stainless steel has many desirable qualities to keep water clean. 　　Steel Pipes can also be used for structural support in buildings and vehicles. The terms "pipe" and "tube" are generally interchangeable, although technically, "pipe" implies high engineering qualities. The tubes are generally manufactured based on standard sizes. 　　Stainless Steel Pipe Production 　　There are two main pipe manufacturing methods that lend their names to pipe ratings. 　　Seamless. Seamless steel pipes are produced by extrusion. Extruded tubes can be formed in hot or cold processes. Long sections of steel bar are forced through a die that blocks th...

　　 Carbon Steel Pipes are widely used in industries, the automobile market, in pipelines and in construction. 　　Automotive Applications: 　　Bearing hoses, brake systems, diesel injection, suspension, CV joints, cardan shafts, impact bars and steering columns, axles for trucks, buses, vans, pick-ups, agricultural machines and third axles for trucks and trailers. 　　Pipe Applications for Industry in General: 　　Conductive pipes: widely used for fluid conduction mainly in refineries and petrochemicals. 　　Pipeline pipes: used in the transportation and distribution of natural gas. 　　Oil Applications (OCTG): 　　Oil extraction and well casing pipes to API 5CT specifications and special extraction pipes in critical environments: High Collapse, Sour Service, 13Cr with API connections. 　　Applications in Construction: 　　Circular and rectangular tubes used in structural components for steel structures and construction (columns, beams, trusses, foundation piles). 　　Steel Pipes have...

　　In fact, in many of today's life, seamless steel pipes are indispensable. One of the most remarkable features of seamless steel pipes is that they do not require any cutting and welding during the production process. This is the only way to ensure that these gas leaks do not occur when transporting gases and liquids, so if welded or cut, it is dangerous to use this seamless steel tube for transport. 　　However, everything has to be maintained for a long time, just like the refrigerator, TV and microwave in the home, in fact, these appliances are long-term use of maintenance. In fact, not only household appliances, but also seamless steel pipes, which need to be maintained, especially steel, it is more likely to rust, resulting in the use of seamless steel pipes is not as good as before, so no matter what is long-term use, it will be There is an aging state, so seamless steel pipes are also in need of maintenance. 　　In fact, in order to prevent the rust of the seamless steel pi...

　　Steel is a ductile material by nature, which also has a stable behavior under load investments and has a convenient strength-to-weight ratio. 　　Steel can accept significant deformations beyond the elastic limit without failing, so it has the capacity to allow inelastic deformations that may be required. It can be used to construct statically indeterminate structures that meet seismic design requirements. It is therefore very convenient for buildings located in areas of high seismicity. However, the intrinsic ductility of steel is not necessarily preserved in the finished structure, so care must be taken during design and construction to avoid the loss of this property. 　　It is this property, intrinsic characteristic of structural steel, that does not exhibit any other construction material in a complet 　　There is a wide range of specifications when we talk about steel tubes, then we will review the most relevant and what would be its practical application. 　　 Galvanized Pipe ...

　　Steel is a ductile material by nature, which also has a stable behavior under load investments and has a convenient strength-to-weight ratio. 　　Steel can accept significant deformations beyond the elastic limit without failing, so it has the capacity to allow inelastic deformations that may be required. It can be used to construct statically indeterminate structures that meet seismic design requirements. It is therefore very convenient for buildings located in areas of high seismicity. However, the intrinsic ductility of steel is not necessarily preserved in the finished structure, so care must be taken during design and construction to avoid the loss of this property. 　　It is this property, intrinsic characteristic of structural steel , that does not exhibit any other construction material in a completely clear way, and that makes possible the application of plastic analysis to the design of structures. 　　Not all steels meet the ductility requirements that are required in area...

　　The specification puts forward clear requirements for the remanence of the spiral steel pipe, so it is necessary to grasp the method of degaussing the spiral steel pipe. The communication degaussing method of spiral steel pipe is the most common method now. The spiral steel pipe communicates the degaussing process flow chart, and the coil is wound around the outer side of the steel pipe to communicate the electric current to the coil, gradually reducing the communication current until it is reduced to zero. 　　Degaussing results: The physical properties of the spiral steel pipe are not changed, but the spiral steel pipe is magnetized once the external magnetic field is encountered again. After the heat treatment process, the complete degaussing can be performed. However, after degaussing, the hardness and rigidity of the spiral steel pipe will change. When the external magnetic field is encountered in the future, the external magnetic field disappears, and the steel pipe will have s...