SSAW Pipe

In automobiles, there's a material that may go unnoticed, but it's crucial—like the car's "blood vessels" and "skeleton," supporting the powertrain and ensuring safety. That material is seamless steel pipe. From the engine to the exhaust system, from the chassis to the drive shaft, seamless steel pipes play a role in almost every critical part of a car.Compared to welded pipes (such as ERW pipes), seamless steel pipes do not have the potential weak point of weld seams. What is a seamless steel pipe? A seamless steel pipe, as the name suggests, is a steel pipe without any weld seams. It's generally made by piercing a solid steel billet and then hot-rolling or cold-drawing it. The absence of weld seams means the entire pipe is a single, continuous piece, making it stronger, more reliable, and more durable than welded pipes. In automobiles, stainless steel seamless pipes are mainly used in the exhaust system, accounting for more than ha...

Project Location：India Product：Seamless Steel Pipe Standard and material：GB/T 8163 Q345B Specifications：508*30mm 406*16mm Application：churches-building This is the renewal order of an Indian customer. The customer purchased a batch of seamless steel pipes with our Xinyue Steel Group in 2022. The customer’s purposes are all church building pipes, so the mechanical properties of the materials are relatively high. The customer requires the yield to reach 310MPA or above and requires a third party to do appearance dimensional inspection and physical and chemical test witness. Due to the high-quality products and high-quality service cooperation last time, the customer has established enough trust and cooperative relationship with our company. This time, the customer directly confirmed the cooperation with us and told us that we are superior to other companies in terms of quality control and service, so they will give priority to cooperating with us whenever they have needs ...

Bearing steel pipe refers to hot-rolled or cold-rolled (cold-drawn) seamless steel pipe, used for manufacturing ordinary rolling bearing rings. The outer diameter of the steel pipe is 25-180 mm, and the wall thickness is 3.5-20 mm. It is divided into two types: ordinary precision and higher precision. In 1976, the International Organization fo r Standardization incorporated some common bearing steel grades into international standards and divided bearing steel into four categories, including fully hardenable, surface hardened, stainless and high-temperature bearing steel, with a total of 17 steel grades. Among them, high-carbon chromium bearing steel GCr15 is the most produced bearing steel in the world, with a carbon content Wc of about 1% and a chromium content Wcr of about 1.5%, accounting for more than 80% of the world's total bearing steel production. Bearing steel is the steel used to make balls, rollers and bearing rings. Bearing steel has high and uniform hardness and wear ...

 Seamless steel pipes can be seen everywhere in our daily use and are widely used in many fields. The following briefly introduces the three characteristics of stainless steel seamless pipes. 1. Corrosion resistance Most stainless steel products require good corrosion resistance. Seamless steel pipes are similar to Class I and Class II tableware, kitchen utensils, water heaters, water dispensers, etc. Some foreign businessmen also conduct corrosion resistance tests on products: use NACL aqueous solution to warm to boiling, after a period of time the solution is drained, washed and dried, and the weight loss is determined to determine the degree of corrosion. 2. Welding processability Soldering performance requirements vary from product to product. A kind of tableware usually does not require welding performance, even some pot companies. However, most products require raw materials with good welding properties, such as second-class tableware, thermos cups, steel pipes, water heaters...

 In the process of purchasing seamless pipes (SMLS), we often encounter several terms for the length of steel pipes. If we cannot fully understand these terms, hidden dangers will often be buried in the signing of the contract, which will bring inconvenience or major losses to our later use. Therefore, we should fully understand these terms in the procurement process and confirm the reasonable length of the seamless steel pipe we need. What is the delivery length? The delivery length is also called the user's required length or the contract length. The standard has the following regulations on the delivery length: ①Usual length (also known as non-fixed length): Any length within the length range specified by the standard and without fixed length requirements is called ordinary length. For example, the structural pipe standard stipulates: hot-rolled (extrusion, expansion) steel pipe 3000mm~12000mm; cold drawn (rolled) steel pipe 2000mm~10500mm. ② Length to length: The length to leng...

Seamless steel pipes can be seen everywhere in our daily use and are widely used in many fields. The following briefly introduces the three characteristics of stainless steel seamless pipes. 1. Corrosion resistance Most stainless steel products require good corrosion resistance. Seamless steel pipes are similar to Class I and Class II tableware, kitchen utensils, water heaters, water dispensers, etc. Some foreign businessmen also conduct corrosion resistance tests on products: use NACL aqueous solution to warm to boiling, after a period of time the solution is drained, washed and dried, and the weight loss is determined to determine the degree of corrosion. 2. Welding processability Soldering performance requirements vary from product to product. A kind of tableware usually does not require welding performance, even some pot companies. However, most products require raw materials with good welding properties, such as second-class tableware, thermos cups, steel pipes, water heaters, wat...

 Under cold conditions a low-carbon steel welding, the cooling rate of the welded joint, which has made cracking tendency to increase, especially in the first weld Heavy structures susceptible to cracking, it is necessary to take the following process steps: 1) Do not possible under conditions of low temperature bending, correction and assembly weldments. 2) Preheat, 16Mn seamless steel pipe welding process strictly maintained interlayer temperature should not fall below the preheating temperature. 3) Hydrogen or ultra-low hydrogen welding. 4) The whole seam continuous welding should be completed to avoid interruption. 5) When positioning welding to increase the welding current, welding speed slows down, due to increase tack welds cross-sectional area and length, preheated if necessary. 6) Not be performed on a base material arc groove surface other than the need to fill the crater when extinction. https://www.steelweldedpipe.com/news/how-to-weld-large-diameter-steel-pipe-at-low-te...

 Project Location: Libya Products: seamless steel pipe Size: 323.9*9.53MM; Standard: API 5L PSL2 GR BN Application:Oil pipeline Inquiry time:29th Apr, 2021 Purchase time: 12nd Oct, 2022 Estimated Shipping time: 10th Apr, 2023 Estimated Arrival time: January, 2023 At the end of April 2021, Xinyue received an inquiry from our regular customer in the Middle East, the customer is a local EPC. The product is API 5L PSL2 GR BN seamless pipe with 3LPE coating on the outer surface. The end user of this project is one of oil company in Libya, and the pipe is applied for oil transportation. Xinyue has successfully supplied many oil pipeline projects of similar size, after receiving the inquiry, we submitted the sample MTC, ITP and QCP as well as relevant shipping experience to the customer and end user for review. The technical data was approved by the customer soon. However, due to the epidemic, the project was put on hold for a while, until the middle of October 2022 the end user finally c...

 What is Structural Seamless Steel Tube? a. Structural seamless steel tubes are seamless tubes used for general structures and mechanical structures, and the main materials are carbon steel and alloy steel. b. Structural stainless steel seamless tubes are hot-rolled (extruded, expanded) and cold-drawn (rolled) stainless steel pipes and structural parts and parts widely used in chemical, petroleum, textile, medical, food, machinery and other industries. ) seamless steel tube. From the perspective of mechanism, it is generally believed that non-metallic inclusions in the tube blank will destroy the continuity and compactness of the 16mn structural seamless steel tube, and serious inclusions may even cause delamination inside the 16mn structural seamless steel tube. The other is considered to be hydrogen-induced cracking, that is, due to the accumulation of hydrogen in the steel, the partial pressure of the gas inside the metal is too high, white spots are formed in the round tube bil...

 What is a cold drawn seamless tube? Seamless steel tubes can be divided into hot rolled-tubes, cold-rolled tubes, cold-drawn tubes, extruded tubes, etc. according to different production methods. The biggest difference between cold-drawn seamless tube and hot-rolled seamless tube is that the precision of cold-drawn seamless tube is better than that of hot-rolled seamless tube. The general accuracy of cold-drawn seamless tube is about 20 wires, while the precision of hot-rolled seamless pipe is about 100 wires, so cold-drawn seamless tube is the first choice for machining and parts manufacturing. Why do cold drawn seamless tubes need heat treatment? During the heating and cooling process of the cold drawn seamless tube, due to the inconsistent cooling speed and time of the surface layer and the core, a temperature difference is formed, causing volume expansion and uneven shrinkage to generate stress, that is, thermal stress. Under the action of thermal stress, since the surface lay...

 As a leading steel pipe manufacturer, Xinyue Steel is committed to providing high-quality steel pipe solutions for various industries. With years of experience and expertise, Xinyue Steel has become a reliable partner in the industry. Among its extensive product lines, seamless steel pipes stand out for their superior quality, durability, and versatility. If you are looking for high-quality and cost-effective steel pipes for your project, Xinyue’s seamless steel pipes could be the perfect fit. Superior Quality Xinyue Steel uses high-quality materials to produce its seamless steel pipes, ensuring excellent strength, durability, and resistance to corrosion. The company employs the latest production technologies, including the hot-rolling, cold-drawing, and cold-rolling processes, to ensure that the seamless steel pipes are produced to the highest standards. Each product undergoes a thorough quality control process, including testing and inspection, before it is shipped to the custom...

Project Location：Rotterdam, Netherlands Product：Alloy Seamless Steel Pipe Standard And Material：ASME SA335 P22 Specifications： 457.2*23.8mm Usage：Pressure Vessel Inquiry Time： Aug Of 2022 Order Time：Sep Of 2022 Shipping Time：Nov Of 2022 Estimated Arrival Time：Dec Of 2022 This order is from a regular customer in Europe. The customer requires a supplier with PED certificate and EN10204 3.2 certification. The order is SA 335 P22 alloy seamless steel pipe. There are several difficulties in operation: 1. The diameter size is special: 457.2*23.8mm, and the customer requires 11 measuring lengths; 2. The customer requires PWHT heat treatment and test requirements, through 3 cycles of heat treatment, and each heat treatment heating speed, heating time has strict requirements. 3. The customer has additional requirements for chemical composition testing and impact testing. These are very difficult for suppliers, but we Xinyue Steel Group has been adhering to the belief that customer needs for the...

 Industrial control of cold drawn precision seamless steel pipe production includes condition control such as die design, annealing, pickling, lubrication, etc. At the same time, capillary quality inspection and maintenance work should also be carried out. The production of cold-drawn precision seamless steel pipes requires attention to control: 1. Capillary: Pay attention to whether the thickness of the capillary wall is uniform. If the thickness of the capillary wall is found to be uneven, surface polishing must be done. In addition, whether the inside and outside of the capillary is flat and there are no bumps and defects. Once bumps or defects are found, they should be dealt with in time. 2. Re-inspection: For the re-inspection of the capillary, the main work of the re-inspection is to ensure that there are no cracks and defects on the outside of the capillary.Be sure to remove the pockmarks and folds in the capillary. 3. Tools: It is a requirement for tools. Generally, the use...

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：2021.11.06 Order time：2022.05.12 Shipping time：2022.10.21 Estimated arrival time：2022.12.8 The concrete weight coating provides negative buoyancy for the submarine pipeline to ensure its stability on the seabed. At the same time, it offers the effective mechanical protection for the pipeline during the transportation, hoisting, installation and service period ; especially in shallow sea areas,it can reduce the external force damage caused by fishing vessels and large cargo ships , as well as the damages to complex undersea environment. The concrete weight coating have good performance of high density, compressive strength, durability and weather resistance. The concrete weight coating system is composed of iron ore aggregate, sand, cement, water and reinforcement materials, can process 35-150mm ...

Project location：Kazakhstan Product：SMLS seamless steel pipe Standard and material：GOST 8732-78 Ct 20 Specifications： 89x5x12000MM ,black coating. 155 tons Usage：Gas transmission Inquiry time：2022.7.25 Order time：2022.7.29 Shipping time：2022.8.30 Estimated arrival time：2022.9.30 Xinyue has sufficient stock of seamless steel pipes all year round to supply customers at any time. This order is an old customer in Kazakhstan. It took less than a week from inquiry to transaction, which fully reflects the customer’s trust and support for Xinyue. The whole process of communication between business and customers in Russian, from product knowledge to quotation to closing contract, reflects not only the solid preparation of product expertise, but also the unremitting efforts of Xinyue business to better communicate and communicate with customers and provide better services. https://www.xysteelpipe.com/repeated-order-from-regular-kazakhstan-customer/

 Seamless steel tube is an important type of steel pipe in production and life. It is an important steel that is relatively strong and durable in steel pipes. The seamless steel pipe will also encounter bending and deformation in use. When encountering the bending and deformation of the seamless steel pipe, as long as it can be corrected, the seamless steel pipe can continue to be used. Otherwise, the seamless steel pipe will have the effect of use. It is also possible to control the bending degree of seamless steel pipes, which should be controlled from the following aspects: Controlling the bending degree of seamless steel pipes during quenching can be carried out from the following aspects: (1) The step-by-step cooling process of external spraying and then internal spraying is adopted. Since the internal water spray of the seamless steel pipe flows from one end of the seamless steel pipe to the other end, the cooling rate of the seamless steel pipe at both ends is different, res...

Project Location：India Product：Seamless Steel Pipe Standard and material：GB/T 8163 Specifications：Q345B Usage：Infrastructure Construction Inquiry time： June of 2021 Order time：Aug of 2022 Shipping time：Sep of 2022 Estimated arrival time：Oct of 2022 The Indian client is a church builder. The client contacted us in the middle of last year. But no purchase order was confirmed. I contacted the customer on August 19 this year, and the customer asked to update the price scheme. After updating the price, I found that there are many people asking about this order in the market. We have many competitors. Knowing that the customer was in a hurry about the delivery date, I used the company’s resources and integration to find the spot plan to the customer, and at the same time sent the customer a photo of the spot. The customer is willing to cooperate. However, the client was very cautious because it was the first time to cooperate with our company. From August 20 to August 22, I successively solv...

 According to the standard requirements, the dimensional inspection of seamless steel pipes mainly includes the wall thickness, outer diameter, length, curvature, ovality and end face shape of the steel pipe. (1) Wall thickness inspection The tool used for wall thickness inspection is mainly a micrometer. During inspection, use a micrometer to measure the wall thickness of the steel pipe one by one. Before inspection, first verify whether the certificate of the micrometer is within the validity period, and check whether the micrometer is aligned with the zero position, whether the rotation is flexible, and the measuring surface should be free of scratches and rust spots, and can be used after passing the test. During the inspection, hold the micrometer bracket with the left hand and rotate the exciting wheel with the right hand. The diameter of the screw rod should coincide with the diameter of the measuring point, and the end face measurement should be no less than 6 points. If th...

Project location：Australia Product：seamless steel pipe Standard and material：ASTM A106 GR.B Specifications：DN20 – DN250 SCH40/SCH80 Usage：Stock supplement Inquiry time：2022.4.8 Order time：2022.4.11 Shipping time：2022.5 At the beginning of April 2022, Tianjin Xinyue again received a supplementary order for seamless steel pipe inventory from regular customers in Australia: the executive standard and material are ASTM A106 gr.b, the diameter range is dn20-dn250, the wall thickness range is Sch 40 – sch80, the length is 6m, a total of more than 20 specifications and about 90 tons. Although the order volume is small and the specifications are complicated, Tianjin Xinyue team has never despised any order and customer. Thanks to the strong resource integration strength, Tianjin Xinyue reported all the dimensions required by the customer as soon as receiving the order, and the customer readily confirmed the contract within 3 days. At present, all goods are in production and will ex-mill at the...

 The anti-corrosion coating of seamless steel pipe refers to the use of paint to uniformly and densely coat the surface of the rust-removed steel pipe to isolate it from various corrosive media. It is one of the most basic methods for anti-corrosion of seamless pipes. There are many kinds of anti-corrosion coatings, and their properties and uses are different. Among them, the coating technology is to form a continuous covering layer of insulating material on the metal surface to insulate the metal and the electrolyte in direct contact with it.That is to set a high resistance so that the electrochemical reaction cannot occur normally. Seamless steel pipes means pipes with hollow sections and are used in large quantities for conveying fluids.When transporting oil, natural gas, gas, water and some solid materials, seamless pipes are often affected by external factors such as geological conditions and weather conditions and corrode. Therefore, it is necessary to carry out anti-corrosio...