steel tube

　　Galvanization is a process developed from the work of Luigi Galvani, a renowned Italian physician, physiologist and physicist. 　　The galvanization technique has been present since the 19th century, many are the buildings and structures that are channeled with said material for the conduction of both residual and potable water. 　　The galvanization process consists of coating one metal with another, it is carried out in materials such as steel or iron. The most common galvanizing consists in depositing a layer of zinc (Zn) on iron (Fe). The purpose of such a process is to help resist oxidation and corrosion that can cause moisture and environmental contamination to the coated material. 　　There are several processes to perform the zinc coating, the main ones are hot galvanizing which consists of immersing the material in a melted zinc crucible at a temperature of 450 ° C. Another common procedure for galvanizing iron or steel is the so-called electrolytic galvanizing, this process...

　　If you want to make repairs and plumbing installations for yourself, you need to know how to recognize the types of pipes that exist. This will also help you to know which tubes are inside your home and thus be able to apply the most appropriate technique. 　　Among the most common are copper pipes, steel pipes , PVC pipes, among others. However, in old houses, you may find other types of pipes. For example, in those homes built before 1960, the most commonly used pipes were galvanized steel or cast iron. 　　We share the main characteristics of each type of tube. 　　Copper pipes 　　Because copper pipes are very resistant to corrosion, they are commonly used in water pipes. They cost a little more than other tubes, but they are much more durable. There are two types of copper pipes: 　　Rigid copper pipes: Rigid copper pipes are divided into three types. Type M is the thinnest, but strong enough to be used in homes. Types L and K are slightly larger, and are used outdoors and drain...

　　Since the Industrial Revolution, steel is the star material in construction. Resistant, flexible and very durable, architects and engineers found in this material infinite possibilities to expand and perfect their art. Whether it is part of reinforced concrete or by itself, steel floods both private and commercial buildings and public buildings. It is easy to know why. 　　The modern and contemporary aspect of steel is one of the easiest features to appreciate but its striking exterior is accompanied by many intrinsic qualities that make steel a popular material. Its high strength allows the steel to be used as a beam since, adding a relatively small weight to the structure, it allows to support many tons in return. Steel is a uniform material and its characteristics remain stable over time, so the constructions that use this material are much more durable than those based on wood or concrete without reinforcement, in addition to all this, steel is a ductile material so it can withst...

　　Spiral steel pipe is a spiral seam steel pipe with steel reel as raw material, which is often heated and extruded, and welded by automatic double wire double-sided submerged arc welding process. The spiral steel pipe feeds the strip into the welded pipe unit. After rolling a plurality of rolls, the strip is gradually rolled up to form a circular tube blank having an open gap. Adjust the pressing amount of the press roller to control the weld gap to 1~3mm and make the end of the solder joint flush. 　　Therefore, the spiral steel pipe is spiral in the forming process, the elbow needs to be pressed by the press, and the spiral steel pipe cannot bear, so the raw material for the elbow does not include the spiral steel pipe. 　　First, the construction preparation of the spiral steel pipe before use 　　The pipe trench should be dug well, and the pipe well brickwork is completed, and various types of spiral steel pipes are required. All the required tools, including welders, cutters, ham...

　　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 Primesteeltube, 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 ...

　　When we talk about the galvanized steel pipes , we usually refer to the hot dipped galvanized steels pipes which are more durable and strengthened than any other types. The cleaning process which the hot dipped galvanized steel pipe uses is far more special in the combination use of the solutions, including the ammonium chloride, zinc chloride or the mixed solutions of both. And it will be sent into the hot dipped groove afterwards. The galvanized steel tube will be with more even layer of the galvanization and the capacity of cohesion, anti-corrosion and anti-dust. All of these as mentioned above will contribute to this kind of steel pipe to be have longer longevity than any other steel pipe kinds. 　　To maintain these galvanized steel tubes, we should keep in mind about these following steps: 　　1. Regular clean away the piling-up materials around the steel and control its loading under its limitation. 　　2. Regular observe if there is any deviation among the steel tube's wh...

　　What’s galvanized pipe fitting? Well, generally, it is an iron or steel sheet fittings with a zinc coating to prevent corrosion and rust. When comes to galvanized steel pipes, fittings and other structures, strong and desirable in different situations. We can find a lot of advantages in pipes and fittings. 　　Long life is the first advantage for galvanized steel pipe , fittings are known for their long life. 　　1. High quality, anti-corrosion & rust. 　　2. Easy inspection is another added advantage of taking the adoption of galvanized and fittings. You can see the production date. The inspection process is extremely simple and straightforward. 　　3. Fast assembly is also another added advantage of such pipes and fittings. Good quality steel needs to be treated right. There are various benefits and advantages of Galvanized pipe fittings.

　　When a piping project not works well, the steel pipes and pipe fittings are always facing the wear resistant problem ,especially when some impurity, sands,slurry in the flowing liquid . Some technical measures should be taken to reduce wear and tear about pipe and fittings . 　　1.We should assess the liquid condition when choose the steel material of the pipe fittings . Should we use the common steel material? or the wear resistant steel ? or should we arrange the wear resistant coating or lining materials? cement lining or ceramic lining? 　　2. The special treatment for pipes or pipe fittings. For example , the steel elbows. The outer radius of the elbow is grinded most seriously, we can add some thickness to this part of the elbows. This is also happened to other pipe fittings, like tees , reducers. 　　3. To the steel pipes , concentric reducers and caps , they can rotate in any degree and piping system . When they are in the horizontal direction , due to wear of the maximum bo...

　　1. Straight seam steel pipe high-frequency welding process: according to the way high-frequency current generates heat in the workpiece can be divided into contact high-frequency welding and induction high-frequency welding. When in contact with high frequency welding, high frequency current is transmitted to the workpiece through mechanical contact with the workpiece. In the induction of high-frequency welding, the high-frequency current generates an induced current in the workpiece through the coupling action of the external induction coil of the workpiece. High-frequency welding is a specialized welding method that requires special equipment according to the product. High productivity and welding speed of 30m/min. That is to say, the weld is parallel to the surface of the steel pipe and will not be higher or lower than the surface of the steel pipe. 　　2. Straight seam pipe submerged arc welding process: Submerged arc welded steel pipe is also a welding method using arc as a hea...

　　1. Divided by material: 　　Carbon steel: ASTM/ASME A234 WPB, WPC 　　Alloy: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP911, 15Mo3 15CrMoV, 35CrMoV 　　Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N 　　ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti 　　ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H 　　Low temperature steel: ASTM/ASME A402 WPL3-WPL 6 　　High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70 cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon leaching, PVC, PPR, RFPP (reinforced polypropylene), etc. . 　　2. Divided by the production method can be divided into push, press, forge, casting and so on. 　　3. According to the manufacturing standards, it can be divided into national standard, electric standard, ship standard, chemical standard, water standard, American standard, German standard, Japanese standard and Russian standard. 　　4. According to its radius of curvature: can be divided into long ra...