SSAW Pipe

 Carbon steel is the basic material used early and in large quantities in modern industry. While trying to increase the output of low-alloy high-strength steel and alloy steel, various industrial countries in the world also pay great attention to improving the quality of carbon steel and expanding the variety and scope of use. At present, the production of carbon steel accounts for about 80% of the total steel production in various countries. It is not only widely used in construction, bridges, railways, vehicles, ships and various machinery manufacturing industries, but also in the modern petrochemical industry and marine development. It has also been widely used. Carbon steel pipe (cs pipe) plays an important role in my country's steel pipe industry. Carbon steel, also known as carbon steel or plain carbon steel, refers to an iron-carbon alloy with a carbon content (Wc mass fraction) less than 1.35%. Carbon steel generally contains a small amount of silicon, manganese, sulfur and...

Steel surface treatment is the key to determining pipeline corrosion, which is the premise of the close combination of coating and steel pipe and one of the key factors of service life. Its application research scope is also very wide in the anticorrosion construction management process of oil and gas pipelines. Long-distance oil and gas pipelines are an important way to ensure energy security. Carbon steel pipes need anti-corrosion and anti-rust treatment. Carbon steel pipes are not stainless steel pipes and cannot be pickled and passivated. If the country is a new pipe, it can be scaled or coated with an anti-corrosion layer. If the pipe has been installed, you can ask a professional pipe repair company to deal with it. First remove the rust, and then apply a new anti-corrosion coating on the inner wall. This repair method does not need to disassemble the pipe, and can directly work in the original state of the pipe laying. In addition, it depends on the specific requirements of the ...

 At present, steel pipes are widely used and have many types. Thermal expansion carbon steel pipe is one of them. It has many advantages, but of course it is not without any disadvantages. The following is a detailed explanation of the advantages and disadvantages of hot-expanded steel pipes by carbon steel pipe manufacturers, hoping to help you understand this product. Advantages of thermal expansion carbon steel pipe: It can destroy the forging structure of the steel pipe, refine the grain size of the heat-expandable steel pipe, eliminate the microstructure defects, make the heat-expandable steel pipe compact in structure and improve the mechanical properties. This improvement is mainly reflected in the rolling direction, so that the heat-expandable steel pipe no longer has the corresponding isotropy, and the bubbles, cracks and porosity generated in the pouring process can also be welded under the function of high temperature and high pressure. Disadvantages of thermal expansion...

　　Schedule pipe is the denomination given to the result rounded to the ten calculated by the formula: SCH = P / S where P is the working pressure of the pipe and S is the tension (pressure) corresponding to 60% of the material flow limit at 20 degrees. W. 　　Therefore for the same outside diameter of a conduit pipe, the larger the SCH the greater the wall thickness in relation to its diameter. The Schedule therefore defines the wall thickness of the pipe, and the values set for each Schedule (thickness) in the various diameters are tabulated and agreed in the corresponding standards. 　　For example, ASTM and NBR 5590 standards follow dimensions according to the standard defined in ANSI B 36.10. In less common standards, European DIN, BS and others, as well as Brazilian standards ABNT, is not common the designation of thicknesses in Schedule but rather as recommendation of ISSO (INTERNATIONAL STANDARDZATION ORGANIZATION) that establishes thickness classes, which are defined as table o...

　　Residual magnetism causes and impact on quality of welding 　　When the gas pipeline construction and repair welding operations, sometimes magnetic blow phenomena affect the welding process. Forming a magnetic blow is the result of the presence of residual magnetism in the pipe metal. Typically, the magnetic induction and magnetic remanence divided into two processes. Magnetic induction in plants often produce tube links, such as: metal smelting, using electromagnetic crane for loading and unloading, pipe parked or garaged in a strong magnetic field, the magnetization is completed nondestructive inspection method, the pipe is placed close to power lines and so strong. Processes often produce magnetic welding operations during the assembly and the use of a magnetic holder, fixture and took DC welding pipes, such as: prolonged contact is connected to a DC power supply electric wire, bare wire segment or short-circuit pipe welding clamp and so on. 　　When welding with magnetic steel, o...

　　The first thing to consider about carbon steel pipe is simply what it is. Carbon steel pipe is pipe comprised of carbon steel. But what is carbon steel? Here’s how the American Iron and Steel Institute defines it: 　　Steel is considered to be carbon steel when no minimum content is specified or required for chromium, cobalt, niobium, molybdenum, nickel, titanium, tungsten, vanadium or zirconium, or any other element to be added to obtain a desired alloying effect; when the specified minimum for copper does not exceed 0.40 percent; or when the maximum content specified for any of the following elements does not exceed the percentages noted: manganese 1.65, silicon 0.60, copper 0.60. 　　Simply, carbon steel is steel in which the main alloying component is carbon. Interestingly, most of the world’s steel falls into this category. 　　What are the different types of carbon steel pipe? 　　Carbon steel is classified according to how much carbon has been mixed with the base element, iro...

　　Steel pipe fittings play an important role in the connection, control, change of direction, streaming components collectively sealed and supporting. Carbon steel pipe fittings are main auxiliary products for the steel pipe. The key products contain carbon steel elbow, flanges, steel cap, steel tee, carbon steel pipe reducer. The standards include national standard, American standard and DIN. 　　Carbon steel pipe fittings are also called pressure pipe fittings. It is usually divided into three types: butt class pipe fittings, socket welded pipe fittings and threaded pipe fittings. In pipe joints system, you need various sizes of steel pipe fittings due to the different pipe sizes. For instance, you have to connect to a straight tube or tube section, the threaded pipe fitting is necessary. After the deep process of finished steel pipe, any pipe should belong to the scope of the steel pipe fittings, because it has double characteristics of the tubes and mechanical elements. 　　The si...

　　As the development of pipe industry, pipe and pipe fittings, including pipe coupling, pipe tee, pipe elbow are more and more widely use in industrial area. There are four types of carbon steel pipe that are mostly used, and Prime Steel Pipe as an excellent steel pipe manufacturer of China, has 24 years expenrience to produce high quality carbon steel pipe. If you have any requirement of carbon steel pipe, you can contact us right now. 　　1. Welded steel pipe: it is also called welded pipe. It is shaped by steel plate or steel strip through bending and then welding. It is divided into seam welded pipe and spiral welded pipe. According to the application, it is divided into general welded pipe, galvanized welded pipe, oxygen blowing metric welded pipe, welded pipe, wire casing, roller tube, deep well pump pipe, auto tube, transformer, electric welding thin wall pipe, welded pipe and spiral welded pipe. 　　2. General welded pipe: general welding work for low pressure liquid. It uses ...

　　Low carbon steel pipe known as mild steel pipe and carbon content from 0.10% to 0.30% in low-carbon steel is easy to accept all kinds of processing such as forging, welding and cutting, commonly used in the manufacturing chain, rivets, bolts, axis. The carbon content of less than 0.25% carbon steel, because of its low intensity, low hardness and soft, it is also known as mild steel pipes. It includes the majority of ordinary carbon steel pipe and part of high-quality carbon structural steel, mostly used in engineering structures without heat treatment, and some by carburizing and other heat treatment is used for wear-resistant mechanical parts. 　　Low carbon steel pipe annealed structure of ferrite and pearlite, the lower its strength and hardness, good ductility and toughness. Therefore, the cold good formability and can use methods such as crimping, bending, stamping, cold forming. This structural steel pipe has good weldability. Low carbon content of low carbon steel hardness is ...

　　The most common defects for seamless steel pipe is uneven wall thickness. for example carbon steel pipe, thickness deviation from the capillary puncher at least 7.5%, reducing the elongation rolling to 4.5% increase to 7% after expanding, then after tension reducing to 4.5%. 　　Seamless steel pipe wall thickness deviation performance reasons: 　　 Punch a hole deviation generated during 　　Since puncher in the head with a perforated plunger between the first support frame centering rollers cantilever structure is formed, so that the head during piercing irregular beating, so the head will be uneven force within the tube, causing the wall thickness deviation generated. 　　 Manufacturing precision equipment and structures 　　Since the stability of the perforator roll and the guide plate is poor, so that the device generates a large jump in the perforation, the impact of the tube thickness of the device manufacturer; old structure and centering rollers on the roller and is generall...

　　Bare steel pipe is different from coating steel pipe, bare steel pipe will eventually corrode, or rust. Since the total performance of a pipe coating system involves the three separate processes, application to the pipe, handling and storage of the pipe, and in-ground or above-ground service of the pipe; the functional requirements and the resistance to deterioration should be considered when establishing your criteria for the coating properties that we offer. 　 　Bituminous Asphalt Coating 　　The principal uses for asphalt coatings include internal and external application to carbon steel pipe . Our bituminous asphalt coating has been tested to meet ANSI-A21.4 and AWWA C104 specifications for potable water, and has been found to be acceptable and is certified to NSF Standard 61. This coating is black in color. When applied correctly, this fast coating process provides the cathodic protection required for most underground structural steel pipe. This is the least expensive method we...

　　Ceramic steel pipes are essentially different from traditional steel pipes, wear-resistant alloy cast steel pipes, cast stone pipes, and steel-plastic and steel pipes. The outer layer of the ceramic steel pipe is a steel pipe, and the inner layer is corundum. The corundum layer has a Vickers hardness of 1100-1500 (Rockwell hardness of 90-98), which is equivalent to tungsten-cobalt hard gold. The wear resistance is 20 times higher than that of the carbon steel pipe, and it is much superior to the corundum wheel which is usually bonded. Now the corundum grinding wheel is still the main grinding wheel for all kinds of grinding machines. 　　The corundum layer in the ceramic steel tube can wear away the corundum grinding wheel. The wear resistance of ceramic steel pipes is mainly due to the corundum layer with a thickness of several millimeters in the inner layer, and its Mohs hardness is 9, which is second only to diamond and silicon carbide. Its hardness is relatively high among all ox...

　　 Carbon steel pipe is made with steel ingot or solid round steel and processed into a tubular billet by perforation, than finished with hot and cold rolled. So it can be divided into hot rolled steel pipe and cold rolled steel pipe two categories. 　　Hot rolled steel pipe can be divided into general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking tube, geological steel pipe and others. 　　Cold rolled steel pipe not only included general steel pipe, low and medium pressure boiler steel pipe, high pressure boiler steel pipe, alloy steel pipe, stainless steel pipe, petroleum cracking tube, but also included carbon thin-walled steel pipe, alloy thin-walled steel pipe, stainless thin-walled steel pipe and profiled steel pipe. 　　According to the classification of use, we can divide the carbon steel pipe into below 5 types: 　　1.Pipeline tube: Such as water or gas tube, seamless steam pi...

　　Carbon steel pipe is most commonly used in critical engineering applications. It may also be used in automotive applications or structural applications as well. Carbon steel piping is important in applications from oil and gas to control lines or electrical lines. Depending on the job at hand determine whether you are in need of seamless carbon steel pipe or welded carbon steel pipe. 　　Welded carbon steel piping is formed from an originally flat piece of carbon steel. The piece of carbon steel is rolled and welded creating a welded seam going long ways down your piece of carbon steel tubing or piping. The weld is formed by using a high energy source to melt the local metal together. Thus creating a weld bead when squeezed together. You will notices where the welded seam is the weld bead. This will be raised compared to the rest of the carbon steel pipe. You will find that some seams are manipulated to become more flush with the piping, while others are sold “as-weld” meaning they a...

    Carbon steel is a metal alloy that combines iron and carbon.The various USES of carbon steel depend on the amount of carbon added to the alloy;For example, carbon steel with the lowest carbon content is called forgings, used for fencing and the like.Medium-carbon steel, also called mild steel, is the type of steel that is used for structural purposes in buildings and bridges. High-carbon steel is used for springs and steel wires, while ultra-high carbon steel is called cast iron and is often used to make pots.     There are two types of steel alloy that are typically familiar to the average person: carbon steel and stainless steel. Carbon steel combines iron with carbon, while stainless steel combines iron with chromium. It is easy for most people to identify stainless steel, because the chromium creates a shiny coating over the metal that is reflective and nonporous, making stainless steel simple to clean and decorative. One of the common definitions of carbon...

    Carbon steel pipe use:     1. Machinery industry tube. Such as aviation structural tube (round tube, oval tube, flat oval tube), automotive axle tube, axle tube, automobile tractor tube, tractor oil cooler tube, agricultural square tube and rectangular tube, transformer tube and bearing tube and so on.     2. Petroleum geological drilling tube. Such as: oil drilling pipe, oil drill pipe (square drill pipe and hexagonal drill pipe), petroleum tubing, casing and various oil pipe fittings, geological drilling pipe (core pipe, casing, active drill pipe, by hoop and pin connector, etc.).     3. Pipeline pipe. Such as: water, gas pipes, steam pipes with seamless pipe, oil pipelines, oil and gas trunk pipe. Agricultural irrigation faucet with pipe and sprinkler pipe and so on.     4. Chemical industry tube. Such as: oil cracking pipe, chemical equipment, heat exchangers and pipelines, stainless acid-resistant tubes, high pressure pi...