Seamless Steel Pipe

 Product：Seamless Steel Pipe Standard and material：ASTM A252 GR 3 Specifications：OD 610mm x 12mm x 12m Application：Structure Tubular Piling This is the steel pipe procurement contract signed by the regular customer of Xinyue , who has cooperated with Xinyue for more than 10 years. These pipes is used for project replenishment, and the delivery time is urgent, Xinyue combines its own inventory advantages to provide customers with sufficient steel pipes in a very short delivery period. Be committed to providing high-quality steel pipe solutions for global customers, Xinyue insist on improving services from the perspective of customers. At this purpose, XInyue has kept long-term inventory for seamless steel pipes with rich specifications and reliable quality. Xinyue storage base cover an area of more than 50000m2，located in Daqiuzhang, Tianjin. At present, Xinyue own around 10,000 tons inventory of various steel pipes , meanwhile, we also offer storage service. https://www.xysteelpipe...

 Most carbon steel seamless pipes are made of low-alloy high-strength structural steel made of 16Mn. This kind of steel has poor corrosion resistance. If it is not properly stored, it is likely to rust. So how should the seamless steel pipe be anticorrosive and rust removal? 1. Clean directly. If it is dust, oil and other substances, organic solvents can be used to clean the surface of the seamless steel pipe. But this can only be used as an aid to other rust removal methods, and cannot directly remove rust, scale and other substances on the steel surface. 2. Pickling with chemical agents. Cleaning with chemicals can effectively remove the rust on the seamless steel pipe and ensure a certain cleanliness on the surface, but it will cause serious environmental pollution. 3. Polishing and grinding. If there is a large area of rust, the seamless pipe manufacturer can use professional tools to remove the rust, and use mechanized equipment to precisely polish the rust position. In additi...

Xinyue Steel, a leading Chinese manufacturer of steel pipes, has been a trusted supplier of GOST standard seamless steel pipes in Azerbaijan’s market for many years. The company’s pipes have been widely used in various industries such as oil and gas, construction, and transportation. In this article, we will explore the reasons why Xinyue’s GOST standard seamless steel pipe is the top choice for Azerbaijan’s market and its applications in different industries. First, let us briefly introduce GOST standard seamless steel pipes. GOST is the abbreviation of “Gosudarstvennyy Standart,” which means “state standard” in Russian. It is a set of technical standards developed by the Russian government to ensure the quality and safety of industrial products. GOST standard seamless steel pipes are widely used in the Russian Federation and other countries that have close ties with Russia, including Azerbaijan. Xinyue Steel’s GOST standard seamless steel pipes have been widely used in Azerbaijan’s o...

After the quenching and tempering treatment of seamless pipes, the parts produced have good comprehensive mechanical properties and are widely used in various important structural parts, especially those connecting rods, bolts, gears and shafts that work under alternating loads. But the surface hardness is low and not wear-resistant. Tempering + surface quenching can be used to improve the surface hardness of parts. Its chemical composition contains carbon (C) content of 0.42~0.50%, Si content of 0.17~0.37%, Mn content of 0.50~0.80%, and Cr content<=0.25%. Recommended heat treatment temperature: normalizing 850°C, quenching 840°C, tempering 600°C. Common seamless steel pipes are generally made of high-quality carbon structural steel, which is not very hard and easy to cut. It is often used in molds to make templates, tips, guide posts, etc., but heat treatment is required. 1. After quenching and before tempering, the hardness of the steel is greater than HRC55, which is qualified. T...

According to different conditions, the metal material is heated to a suitable temperature and kept warm, and then cooled in different ways to change the metallographic structure of the metal material and obtain the required structural properties. This process is usually called metal material heat treatment. What three processes are included in the heat treatment of seamless tubes? Heat treatment of metal materials is divided into overall heat treatment, surface heat treatment and chemical heat treatment. The heat treatment of seamless steel tubes generally adopts the overall heat treatment. Carbon steel seamless tubes need to undergo basic processes such as heating, heat preservation and cooling during heat treatment. In these processes, defects may occur in steel pipes. The heat treatment defects of seamless steel pipes mainly include unqualified structural properties of steel tubes, unqualified dimensions, surface cracks, scratches, severe oxidation, decarburization, overheating or o...

Project location：Somalia Product：SEAMLESS STEEL PIPE Standard and material：API 5L /ASTM A106 GR B Specifications：12”& 10” Usage：Gasoil, Fuel Discharge,LPG transmission pipeline Inquiry time：2022.06.15 Order time：2022.09.26 Shipping time：2022.10.21 Estimated arrival time：2022.12.8 This order is based on the guarantee of the previous shipment quality and the professionalism of the company’s salesmen. It is the re-order of the old customer. The specification of this order is also a continuation of the previous order. Three-layer polyethylene) anti-corrosion outer coating. Because customers have high technical requirements for anti-corrosion, for quality assurance and to make customers feel at ease with our products, we support customers in the whole process of supervision. Monitoring, at present, the third-party test results have passed smoothly. This batch of goods has been successfully put into the warehouse on the 21st and is expected to arrive in mid-December. In fact, the re-orde...

Project location:Nigeria Products:Seamless steel pipeline, Valve,Fittings Standard&Material:API 5L X52 PSL1, ASTM A234, API 6D, Size:323.9×10.31 Usage: Natural gas transportation Inquiry time Dec,2021 Order time: March, 2022 Delivery time: July, 2022 Arrived time: Estimated Sep, 2022 The order is from an old customer in Nigeria. The client is a well-known local EPC of oil and gas project. In 2021 we cooperated in the first time. When the first batch of goods arrived at the destination, they were unanimously recognized by customers and end user. After the completion of the first project, Xinyue continued to provide timely professional and competitive solutions for the client’s other tenders, helping the client to win a new bid soon after. Based on the trust and recognition established by the first order, the customer held a video conference with Xinyue immediately after receiving the project, and finalized the final contract price and terms at the meeting. Xinyue has completed count...

Products: Carbon seamless steel pipes Project location: Kazakhstan Material: GOST 8732-78 Purpose: stocking Time of receiving RFQ: June,2022 Signing time: June 6th 2022 ETD: July 20th 2022 ETA: August.20th 2022 Serving customers with heart is the work philosophy that every Xinyue person has always adhered to. For each of our Xinyue people, customers are not only indispensable partners, but also close friends in foreign countries. At the same time when we received this customer inquiry, we changed our attention to the customer’s product technical requirements. Unlike the European and American standards that we often deal with, the Russian standard has its particularity. While taking technical information seriously, we also maintain close contact with customers. , the world epidemic situation has never been stable, and railway transportation has become difficult. In order to actively respond to the national transportation policy and ensure the timely and safe delivery of customers’ goods...

 Surface cleaning method of seamless steel tube: 1. Cleaning Use solvents and emulsions to clean the steel surface to remove oil, grease, dust, lubricants and similar organic substances, but it cannot remove rust, oxide scale (corrosion products formed by oxidation), welding flux, etc. on the steel surface, so It is only used as an auxiliary means in anti-corrosion production. 2. Tool rust removal Mainly use tools such as wire brushes to grind the surface of steel, which can remove loose or raised oxide scale, rust, welding slag, etc. The rust removal of manual tools can reach Sa2 level, and the rust removal of power tools can reach Sa3 level. If the steel surface is adhered to a firm scale of iron oxide, the rust removal effect of the tools is not ideal, and the anchor pattern depth required for anti-corrosion construction cannot be achieved. 3. Pickling Generally, two methods of chemical and electrolytic pickling are used for pickling, and only chemical pickling is used for pipel...

 Project Location: Peru Product：SMLS STEEL PIPE with NPT COUPLING Specification：69.3*3.91*5.8M Standard and Material：API 5L PSL1 GR B Usage: Oil Project Inquiry Time：02.2022 Order Time：06.2022 Shipping Time：07.2022 In February 2022, Xinyue Sales Department received an active inquiry from the customer, to provide Peru Oil Company with seamless steel pipes with NPT thread and couplings . Because the terminal is an oil company, the qualification review of suppliers is relatively strict, so Xinyue submitted the factory’s API certificate and a large number of related products shipment records at the first time, thus gaining the trust of customers. Because the oil company’s orders require many departments’ reviewing, during this period, Xinyue did not passively wait for the customer’s order information, but continuously shared the market conditions, updated the latest quotations, and established close contact with customers, so , in the later stage, the customer handed over all other pro...

 Quality test for seamless steel pipe is a very important step for SMLS steel pipe quality control, and for its detection method is also a very particular method for three testing---Ultrasonic testing, Eddy current testing, Magnetic flux leakage testing. Today, we’ll talk about specific situation on non-destructive testing. NDT, short for non-destructive testing, is a widely used method for steel pipe inspection. It is a process of testing, evaluating and inspecting the characteristics and quality of the material without damaging steel pipe itself or affecting the later regular work of steel pipe. In other words, after NDT, steel pipe can still put into practical use. Most common seen NDT are Visual Testing(VT), Ultrasonic Testing(UT), Radio-graphic Testing(RT), Hydrostatic Testing(HT). Tianjin Xinyue Steel Group uses VT, UT, HT for all steel pipes. In order to verify the mechanical properties of seamless steel pipe to meet the requirement of the standard, test sample of SMLS steel...

 The problem of uneven wall thickness of large-diameter seamless steel pipes is relatively common in the production of seamless steel pipes, and it is also a headache for customers. The unevenness of the thick-walled seamless steel pipe is mainly reflected in the uneven spiral wall, the uneven linear wall thickness, and the thickness of the head and tail is slightly thicker and thinner. The reason for the unevenness of the large-diameter seamless steel pipe is the inclination of the center line of the cold rolling of the cutting machine, the different inclination angles of the two hot-rolled strips, or the unevenness of the wall thickness caused by the adjustment reasons such as the small amount of reduction in the front of the top. The entire length of the tube is spiraled throughout. An important preventive measure is to adjust the cold rolling center line of the cutting machine so that the inclination angles of the two hot-rolled strips are the same, and adjust the cold drawing ...

 Production methods Stainless steel tube according to the production method is divided into two categories of stainless seamless pipe and stainless welded pipe, stainless seamless steel pipe can be divided into hot-rolled tube, cold-rolled tube, cold-drawn tube and extrusion pipe, cold drawing, cold rolling is the second Processing; welded pipe is divided into straight seam welded pipe and spiral welded pipe. Section shape Stainless steel tube by cross-sectional shape can be divided into tube and shaped tube. Shaped tube with rectangular tube, diamond-shaped tube, oval tube, hexagonal tube, all directions and a variety of cross-section asymmetric tube. The profiled tube is widely used in various structural parts, tools and mechanical parts. Compared with the tube, shaped tube generally have a larger moment of inertia and cross-section modulus, a greater bending, torsion ability, can be large greatly reduce the weight of the structure, saving steel. Tube end shape Stainless steel tu...

 Steel refers to a metal material with iron as the main element, carbon content generally below 2.0% and other elements. The difference between it and iron is the carbon content. It should be said that it is tougher and more durable than iron. Although it is not easy to rust, it is difficult to guarantee that it will be corroded. If it is corroded and not treated in time, it will be easily corroded. Lose the functionality it was supposed to have. When the seamless steel pipe is rusted, what are the usual treatment methods? Some people will use the cleaning method to clean the stainless steel pipe. When cleaning, the surface of the steel should be cleaned with solvent and emulsion first. This method is only used as an auxiliary means of anti-corrosion and cannot really remove the stainless steel pipe. effect of rust. We can also use steel brushes, wire balls and other tools to remove the loose oxide scale and rust on the surface before cleaning, but if we still do not take protectiv...

 Quality inspection method of seamless steel pipe: (1) Geometric specification detection of seamless steel pipes The diameter, thickness, bending degree, and length of the seamless steel pipe can be inspected on the inspection table with external calipers, vernier calipers, bending level rulers, and length meters. For external opening diameter, thickness and length, automatic specification inspection equipment (such as automatic diameter measuring, thickness measuring and length measuring equipment) can also be used for continuous inspection. For the OCTG seamless steel pipe, the main parameters of the external thread must also be checked. (2) Inspection of inner and outer layers of seamless steel pipes Generally, the inner and outer layers are inspected by estimation, and in addition to the estimation, the inner surface can also be inspected with a reflective prism. Some unique and main purpose seamless steel pipes are also required to be inspected for the internal and external pr...

 For the manufacture of seamless steel tubes, the corresponding annealing treatment must be carried out after each cold drawing. Purpose of annealing: 1. Reduce hardness and improve machinability. 2. Eliminate residual stress, stabilize size, reduce deformation and crack tendency. 3. Refine the grains, improve the structure, and eliminate the defects of the structure. 4. Homogenize material organization and composition, improve material properties and prepare for subsequent heat treatment. The seamless steel pipe annealing furnace is to heat the steel pipe to a temperature slightly higher than Ac1, and after holding for a certain period of time, it is cooled to 550°C ~ 600°C and the heat treatment process with air cooling is called stress relief seamless steel tube annealing. The seamless steel tube annealing furnace adopts an intermediate frequency heating device, which is specially designed for the seamless steel tube continuous annealing furnace. According to the characteristics...

 For the defects of seamless steel pipes, magnetic flux leakage detection method, ultrasonic detection method, eddy current flaw detection method, etc. can be used. 1. Magnetic flux leakage detection method The magnetic flux leakage detection method is to use the magnetic flux leakage principle to detect the seamless steel pipe. During the inspection process, the inspected seamless steel pipe should be magnetized first, because the surface of the inspected seamless steel pipe will only have a magnetic leakage field after magnetization. This detection method uses the sensor to obtain the leakage magnetic field information. Therefore, this method is especially suitable for automatic flaw detection, which can detect a large number of seamless steel pipes in a short time. 2. Ultrasonic detection method Ultrasonic detection method refers to the detection of seamless steel pipes using the principle of electromagnetic induction. When using the ultrasonic detection method for detection, fi...

 Xinyue Steel welcomed our regular Inida custmer in December 2019, The customer has been cooperating with Xinyue for one year. The cooperation with this customer comes from a batch of S235JR submerged arc welded pipes. At that time, the delivery time required by the customer was very urgent. Xinyue strictly controlled every step, from purchasing raw materials to production, we overcame all the difficulties and finally delivered the goods on time. During the last 1 year cooperation, Xinyue supplied many kinds sized steel pipe to client with high quality, which was highly appraised by our customers. The purpose of the visiting is to negotiate the seamless pipe orders .The customer has no doubt about our production and supply quality after the cooperation, but they would like to know more about our production process, quality control process and packaging process. They hope to strengthen the cooperation after knowing more about each other. We sincerely welcome every customer to visit ...

 According to our sales experience, we repeatedly faces new customers’ feedback that SMLS pipe processing qualified rate is low, waste tools and other problems. Bright tube (cold tube) is difficult to cut, cost cutting tool machine, annealed tube is sticking knife during processing, of poor finish degree and surface quality is not good. Today we will briefly introduce which kind of SMLS pipe is most suitable for your usage. Bright pipe (cold forming) Only processing of the inner hole and have high requirement to the material surface, considering the cost, we suggest the customer to use the bright pipe, because the it has good brittleness, easy to processing, mainly for low carbon steel. However, compared with the annealing pipe, the bright pipe has higher hardness and brittleness, easy to damage the lathe tool. The annealing pipe Annealing is mainly to remove the residual stress on the surface of seamless steel pipe, reducing the mechanical properties and improving the ductility. H...

 Seamless steel pipe (SMLS pipe) cracks reasons: 1. Raw material factors Inferior tube blanks will have internal and external warping, scars, cracks, etc.; 2. Temperature factor The first important process in the production of seamless steel pipes is heating. Poor heating (unevenness, insufficient temperature, etc.) will cause inner warping, etc.; 3. Equipment factors From the beginning of the furnace, every equipment component will affect the final quality of the pipe. For example, the scratching of equipment parts will cause the outer skin and pits; the failure of entering the piercing machine will cause the head of the tube blank to be exposed to water and it will be difficult to bite or the inner skin of the head will be warped; 4. Process issues The process issues are also quite complex, including adjustment issues, equipment failure issues, and pipe quality issues caused by the wear of process components (plugs, guide plates, rolls, etc.). 5. It may also be a problem of trans...