LSAW Steel Pipe

Year: 2023 Country：Indonesia Quantity: 660 MT Product: Seamless Steel Pipe / Stainless Steel Pipe Project: Indonesia ASTM A53 Gr6 ASTM A312 316 Seamles Stainless Steel Pipe for Shipyard contstruction Standard and Specification: ASTM A53 Gr6 ASTM A312 316 https://www.xysteelpipe.com/indonesia-seamles-stainless-steel-pipe-for-shipyard-contstruction/

Xinyue Group has been engaged in the steel pipe industry for decades, and has won the trust of customers with professional service and high quality products. The regular customer in Germany chose to cooperate with Xinyue again after only three weeks of the last order, which fully reflects the customer's 100% trust in us and also verifies the product quality of Xinyue. Project location: Germany Product: Stainless Steel Pipe Standard: ASTM A312 Material: 304 Specification: three sizes 21.34mmx2.77mmx6m 26.67mmx2.87mmx6m 33.4mmx3.38mmx6m Usage: the customer is local trader Timeline: Received the inquire on 11th October, 2021 Signed the contract on 28th October Delivery time in the beginning of December Estimated time of arrival 25th December https://www.tjxysteel.com/news/stainless-steeL-pipes-were-shipped-smoothly-2069.html

Project location：Middle East Product：Duplex stainless steel pipe and fittings Specifications:Pipe- DN400*STD*18M length Standard and material:UNS31803 Usage:Central Sewage Treatment Plant Inquiry time：2021.02 Order time：2021.10 Shipping time：2022.01 Arrival time：2022.03 In the early stage of customer inquiry, after communication and discussion, the difficulty is the project start time very urgent, the customer expects to receive the products as soon as possible to start construction. In order to deliver as fast as we can, we successively submitted five versions of the production plan to the customer, also attached the production plan in detail. The considerate service made the customer choose Xinyue without hesitation. Xinyue also did not disappoint customer, constantly informed customers of the production progress, and regularly took photos of the progress in daily report. During the same period, various preparations for shipment are also being actively handled. Under the coordination...

Project location：Southeast Asia. Product：Carbon steel and stainless steel pipe and fittings Standard and material：ASTM A106 GR B, ASTM A312/ASTM A358 TP316L Specifications：DN15-DN600mm Usage：Water plant Inquiry time：2022.01.21 Order time：2022.07 Shipping time：2022.09 Estimated arrival time：2022.09 The products are carbon steel and stainless steel pipes and fittings. We received inquiries from customers at the end of January 2022. After the quotation, some details, quantities, and styles were changed in the middle, and a local company was required to act as an agent and provide an agency authorization letter to Clients and terminals go to audit,Finally, through the strict review of the terminal in June, the customer quickly confirmed the order. Since the customer requires the product delivery time to be tight, in order to cooperate with the customer’s project smoothly, we do our best to coordinate the fastest production time and deliver it to the customer. After the order has been produ...

Project location：Southeast Asia. Product：Carbon steel and stainless steel pipe and fittings Standard and material：ASTM A106 GR B, ASTM A312/ASTM A358 TP316L Specifications：DN15-DN600 Usage：Water plant Inquiry time：2022.01.21 Order time：2022.06 Shipping time：2022.08 Estimated arrival time：2022.08 The products are carbon steel and stainless steel pipes and fittings. We received inquiries from customers at the end of January 2022. After the quotation, some details, quantities, and styles were changed in the middle, and a local company was required to act as an agent and provide an agency authorization letter to Clients and terminals go to audit,Finally, through the strict review of the terminal in June, the customer quickly confirmed the order. Since the customer requires the product delivery time to be tight, in order to cooperate with the customer’s project smoothly, we do our best to coordinate the fastest production time and deliver it to the customer. https://www.xysteelpipe.com/sout...

 On December 12, 2018, I received an inquiry from an old Malaysian customer again. After receiving it, reply to the guest email immediately, talk about details, and make our best quotation. On December 13th, we send the PI and sign the contract. Meanwhile, would you feel that this contract is so easy? In fact, looking back on 2018, we discussed with client again and again and to make the first cooperation in March, and in the coming months, we got 5 orders totally from this customer. So that, I want to say that thanks for your trust and support. By the way, The stainless steel pipe is used for goods frame, but there is a key docking between the two ends of the steel pipe. For the straightness of the pipe body, the roundness has extremely precise requirements. We discuss with the customer many times and receive samples from client, after that, we talked with technical department. And study with factory manager that how to make our stainless steel tubes to meet the client requirement...

 　　At the beginning of April, a regular African customer sent Xinyue a technical document for the construction of an offshore platform. The product was austenitic stainless steel pipes and fittings. Xinyue’s technical team and sales team sorted out and analyzed the technical documents in detail at the first time, and provided customers with a quotation plan in the morning. After receiving our quotation in the afternoon, customer immediately submitted it to their technical team for review. 　　On the second day, our Xinyue team was on standby at any time. At the time we received the technical doubts from our customer's technical team, we Xinyue team immediately answered it one by one. Our prompt and professional feedback left a deep impression on the customer's technical team. 　　After two days of waiting, Xinyue successfully received the customer's contract. Based on previous cooperation experience, customers are full of confidence in the quality of Xinyue. Our customer also i...

　　In addition to large-caliber LSAW steel pipe as a structural material generally has good mechanical and process performance, but also has the use of stainless steel corrosion environment, maintaining the appearance of fine excellent characteristics, but also with acid and alkali resistance, high stainless steel pipe temperature, low temperature resistance, excellent magnetic properties, wear and other functions. Stainless steel pipes and other metal materials have been widely used in construction projects also has the following characteristics compared. 　　1) Large Diameter Longitudinal has a high specific strength and specific stiffness. Specific strength and stiffness of structural engineering in the selection of materials two basic parameters. Strength is the ratio of strength and weight, high-strength steel for the 52 different types of stainless steel pipes in different state than the intensity of the heat treatment may be in the range of 46 to 152, while the aluminum alloy co...

　　Surface NDT methods of straight seam steel selection principles: magnetic iron pipe should be used in magnetic particle testing; non-ferromagnetic steel should be used in penetration testing. Delayed cracking tendency of welded joints, the surface should be non-destructive testing after welding cooling certain time; reheat cracking tendency of welded joints, the surface should be in non-destructive testing and post-weld heat treatment once each. 　　Surface non-destructive testing applications in accordance with the standard requirements: 　　(1) An outer surface of the tube material quality inspection. 　　(2) Important butt weld surface defect detection. 　　(3) Important fillet surface defect detection. 　　(4) Important socket weld and jumper tee branch pipe defect detection. 　　(5) Pipe bending surface defect detection. 　　(6) The material tends to quench detection larger groove welded joints. 　　(7) The design temperature is below zero or non-austenitic stainless steel pipe ...

　　 Stainless steel pipe elbow has excellent corrosion resistance, stainless steel surface thin and strong oxide film so that all stainless steel in all water quality has excellent corrosion resistance, even buried also has excellent corrosion resistance. So it is suitable for a variety of water quality, in addition to disinfection and sterilization, do not need to control the water quality, at the same time, there is no corrosion and excessive exudate, to maintain clean water quality, to prevent secondary pollution, can withstand up to 30 meters per second the impact of high water flow. 　　Many people think that stainless steel material is of course not rusty steel, it is true. Stainless steel pipe elbow rust mechanism is the formation of dense alloy oxide film, isolated oxygen contact to prevent the continuation of oxidation. So stainless steel is not "stainless". Stainless steel has the ability to resist atmospheric oxidation --- that is, stainless steel, but also in the ...

　　 Stainless steel pipes are used in a wide range of industries/markets, due to their overall corrosion resistance and good machinability. Pipes are generally considered passageways for liquids, and measured by inside diameter or ID. Some industry examples include marine, chemical & petrochemical, oil & gas, and renewable energy. Here are some test methods for identifying stainless steel pipe: 　　First, the magnetic test 　　The magnetic test is the simplest way to distinguish between annealed austenitic stainless steel and ferritic stainless steel. Austenitic stainless steel is non-magnetic steel, but by the cold down after cold processing will have a mild magnetic; and pure chrome steel and low alloy steel are strong magnetic steel. 　　Second, nitric acid point test 　　One of the salient features of stainless steel welded pipes is the inherent corrosion resistance of concentrated nitric acid and dilute nitric acid. This performance makes it easy to distinguish from most o...

　　1. Plasticity: plasticity refers to the metal material under the action of the load, resulting in plastic deformation (permanent deformation) without breaking the ability. 　　2. Hardness: hardness is a measure of the degree of hardness of metal materials. The most commonly used in the production of hardness measurement method is the pressure hardness method, it is a certain geometric shape of the indenter under a certain load into the test of stainless steel pipe surface of the metal, according to the degree of penetration to determine the hardness value (commonly used methods are brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and vickers hardness (HV) and other methods. 　　3. Fatigue: The strength, plasticity, and hardness discussed above are the mechanical properties of the metal under static load. In fact, many machine parts are working under cyclic loading, under which the parts will produce fatigue. 　　4. Impact toughness: the load acting on the machine at very lar...

　　 First, the magnetic test 　　The magnetic test is the simplest way to distinguish between annealed austenitic stainless steel and ferritic stainless steel. Austenitic stainless steel is non-magnetic steel, but by the cold down after cold processing will have a mild magnetic; and pure chrome steel and low alloy steel are strong magnetic steel. 　　 Second, nitric acid point test 　　One of the salient features of stainless steel welded pipes is the inherent corrosion resistance of concentrated nitric acid and dilute nitric acid. This performance makes it easy to distinguish from most other metals or alloys. But the high-carbon type 420 and 440 steel in the nitric acid point test is slightly corroded, non-ferrous metals encountered concentrated nitric acid will be corroded immediately. The dilute nitric acid on the carbon steel has a strong corrosive. 　　 Third, the copper sulfate point test 　　The copper sulfate point test is the easiest way to quickly distinguish between ordinary...

　　Check and check the complete data of the stainless steel pipe. 　　We know that stainless steel seamless tube have high quality requirements for seamless pipes under high temperature and high pressure. 　　Cracks in the pipe, due to improper machining process during production, may lead to improper rolling or drawing die setting, folding, warping, scratching or strain, surface and internal defects, etc. In order to ensure the quality of seamless steel tubes , according to the relevant technical standards of the products, the seamless steel pipe production line requires surface and internal nondestructive testing. Commonly used eddy current testing and magnetic flux leakage detection technology. 　　Eddy current detection is an electromagnetic induction based on a nondestructive testing method. It drives a sinusoidal excitation probe coil, when the probe is close to the seamless surface, the induction current produced by the induction electromotive force, that is, the eddy in the alte...

　　Crevice corrosion is a form of local corrosion cracks when surface passivation layer of surface sediment or shielding area is destroyed. 　　There are cracks in the welding process or design of the stainless steel pipe joint at the other joint. In effective corrosion sites, the crack must be wide enough to allow corrosive electrolyte to enter the stagnant zone. The width of the corrosion crack is several meters wide, but it is not absolute. The critical crack size leads to corrosion. 　　In particular, the negative chlorine ions have high activity. Therefore, if there is an external body solution of the crack, the metal ions with positive charge are easily attracted to the narrow cracks. The cracks (usually chromium) in the metal chloride formed to form hydrochloric acid, reduce the pH value to passivate the pH value and passivate. The cracks in the membrane were destroyed and further pitted. Events should be passivated, corrosion will be fast and self - sustaining, especially when ...

　　 Corrosion Protection 　　Coating or cathodic protection is not required for stainless steel in most locations. A thin chromium-rich self-healing oxide film provides corrosion protection for stainless steel and no corrosion allowance is required. Erosion Resistance Stainless steels are much more resistant to erosion-corrosion caused by high flow rates and particulate matter than steel. They can handle high velocity and turbulence (pumps) without suffering wall thickness erosion. 　　Low Coefficient of Friction 　　Stainless steel retains low hydraulic friction properties as compared to aging cement lined or corroded steel pipes, which results in lower water pressure losses and pumping cost savings. 　　 Ease of Fabrication 　　Stainless steels have excellent ductility and can be formed and welded into lightweight shapes, which assists in the handling and installation of pipelines. Stainless steel pipe is highly interchangeable and easily connected with other water piping systems and...

　　Tube mill Process description of stainless steel pipe and tube: 　　 Rolling and welding 　　Firstly, the stainless steel strips are made to go through various quality checks and are trimmed at edges. The strips pass through the number of rollers as per the required size. In the tubes-mill, the strip is gradually converted into the tubular shape. The fitted welding machine is then used to weld trim edges of the strip using TIG welding process. The scraps and inside weld bead are removed instantaneously by the Tibo machine. In this way, rolled pipes and tubes are formed. 　 　The cleaning and heating phase 　　The rolled stainless steel pipes thus manufactured are cut to the required lengths depending upon the industrial demand. These stainless pipes and tubes are then subjected to cleaning to remove the dirt. Further, a heat treatment is given to these rolled pipes and tubes to remove the stresses that may occur due to welding and formation processes. Heat treatment is given on the ...

　　 Stainless steel pipe fitting materials can't contact with other metals directly when lifting, non-metallic materials such as wood or rubber sheet should be padded. 　　Arc striking and arc stopping of stainless steel pipe fittings: back welding method should be adopted for arc striking and must be made within the groove, arc stopping should fill arc crater. Arc striking should be avoided in the pipeline and on the surface of pipe parent metal. If defects such as holes and crack are found when arc starting and arc stopping, they should be cleaned up. 　　Arc striking and arc stopping of stainless steel pipe fittings of multi-channel multi-layer welding should be staggered. 　　Argon tungsten-arc welding can be carried out only if the inner of pipes and cavity are protected by filling argon gas before back welding of stainless steel pipe fittings, pipe fittings and stainless steel pipes, pipe fittings and stainless steel pipes, pipe fittings connection and butt joint. 　　When st...

　　No matter which kind of steel pipe we engineering project takes, stainless steel pipe, seamless steel pipe, welded steel pipe or others, it is an important lesson for us to have precautions for steel pipe users need to pay attention to. 　　There are some examples for clients: 　　First of all, to make ensure the safe operation of oil or gas, or prevent accidents from expanding in the event of an accident,we need to take some special safety measures except the basic installing detect and control. For example, there should be an accident relief valve or an emergency stop valve for the seamless steel pipes which used for long distance oil or gas transmission. 　　What's more, due to the parameter of the steel pipes, we should take original material into account when we consider the problem of the adhesion of the anti-corrosion layer. 　　 http://www.xysteelpipe.com/info/Precautions-steel-pipe-users-need-to-pay-attention-to-1118-1.htm

    Precise stainless steel pipe refers to stainless steel pipes with austenitic organization in normal temperature. Stainless steel tubes contain about 0.1% C, 18% Cr, 8% ~ 10% Ni, with stable austenite organization. Common heat treatment technologies are: solution treatment, stabilizing treatment and stress relief treatment.     Solution treatment     Heat precise stainless steel pipes to 1050-1150 degrees Celsius and then water quenching, making carbon dissolved in stainless steel and keep the state in room temperature, which is a method of heat treatment to prevent the intergranular corrosion and corrosion resistance of the steel will be improved greatly. For thin-walled precise stainless steel pipes, generally water cooling is adopted as well as air cooling.     Stabilizing treatment     Stabilizing treatment is commonly carried out after solution treatment. Heat precise stainless steel pipe to 850-880 degrees Celsius and pe...