Stainless Duplex Seamless Steel Pipe 31500
- Ref Price:
-
- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 5000 m.t./month
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1、Structure of Stainless Duplex Seamless Steel Pipe 31500 Description:
Duplex Stainless steel pipe and tubing are used for a variety of reasons: to resist corrosion and oxidation, to resist high temperatures, for cleanliness and low maintenance costs, and to maintain the purity of materials which come In contact with stainless. The inherent characteristics of stainless steel permit the design of thin wall piping systems without fear of early failure due to corrosion.2、Main Features of the Duplex Seamless Steel Pipe 31500:
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
•Reasonable price
3、Duplex Seamless Steel Pipe 31500 Images：
4、Duplex Seamless Steel Pipe 31500 Specification：
Detail infomation
Standards: ASTM/ASME A789/SA789, A790/SA790,A450,A530
Material: UNS S31803(Cr22Ni5Mo3/1.4462)/2205,UNS S32750(1.4410),UNS S31500(Cr18NiMo3Si2),
UNS32760(1.4501)
Chemical Composition
Grade | C max | Si max | Mn max | P max | S max | Cr | Ni | Mo | N |
UNS S32750 | 0.030 | 0.8 | 1.2 | 0.030 | 0.015 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 |
UNS S31803 | 0.030 | 1.0 | 2.0 | 0.020 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
UNS S31500 | 0.030 | 1.0 | 1.2-2.0 | 0.030 | 0.030 | 18.0-19.0 | 4.5-5.5 | 2.5-3.5 | 0.05-0.10 |
Physical Properties
Grade | Y.S.MPa min | T.S.Mpa min | Elongation % | Hardness HRC |
UNS S32750 | 550 | 800 | 15 | 20 |
UNS S31803 | 450 | 620 | 25 | 20 |
UNS S31500 | 440 | 630 | 30 | 20 |
Supplementary Testing :
we also carry out on the manufactured products supplementary testing.
Radiography Testing |
Macro Testing |
Liquid Penetrate testing |
5、FAQ of Duplex Seamless Steel Pipe 31500：
①How is the quality of your products?
Our products are manufactured strictly according to national and internaional standard, and we take a test
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.
②How about price?
Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.
③Why should you chose us?
Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.
Any question, pls feel free to contact us !
- Q: Can stainless steel pipes be insulated for soundproofing?
- Yes, stainless steel pipes can be insulated for soundproofing. Insulating stainless steel pipes can help reduce the transmission of noise and vibrations through the pipes. There are various methods and materials that can be used to insulate the pipes, such as acoustic wraps, foam insulation, or mass-loaded vinyl. These materials are designed to absorb or block sound waves, preventing them from traveling along the pipes and into the surrounding environment. Properly insulating stainless steel pipes can significantly improve soundproofing in residential, commercial, or industrial settings, making them an effective solution for noise reduction.
- Q: Can stainless steel pipes be annealed?
- Yes, stainless steel pipes can be annealed. Annealing is a heat treatment process that involves heating the stainless steel pipes to a specific temperature and then cooling them slowly to alleviate stress, improve ductility, and enhance the material's mechanical properties. During the annealing process, the stainless steel pipes are heated to a temperature above their recrystallization temperature, typically between 1040°C and 1120°C (1904°F and 2048°F) for austenitic stainless steels. This allows the internal structure of the pipes to become more uniform and relieve any stresses that may have been induced during manufacturing or previous use. After annealing, the stainless steel pipes will have improved formability, increased toughness, and reduced hardness, making them suitable for various applications in industries such as oil and gas, chemical processing, and construction.
- Q: Can stainless steel pipes be hydrotested?
- Yes, stainless steel pipes can be hydrotested. Hydrostatic testing is a common method used to check the integrity and strength of pipes. It involves filling the pipes with water or another suitable liquid and applying pressure to the pipes to check for leaks or failures. Stainless steel pipes are often used in various industries due to their corrosion resistance and durability. Therefore, they can undergo hydrotesting to ensure their reliability and performance. However, it is important to follow the appropriate safety guidelines and procedures while conducting hydrotesting on stainless steel pipes to prevent any potential damage or accidents.
- Q: Can stainless steel pipes be used for architectural purposes?
- Stainless steel pipes are indeed capable of being utilized for architectural purposes. The architectural applications of stainless steel are facilitated by several properties it possesses. Firstly, its resistance to corrosion is incredibly high, a crucial factor for structures that are exposed to the elements. Moreover, the sleek and modern appearance of stainless steel pipes can impart an aesthetic touch to architectural designs. In addition to this, stainless steel is a formidable and long-lasting material that provides structural integrity and longevity to buildings. Its versatility allows it to be incorporated into a variety of architectural elements, including handrails, balustrades, staircases, and structural supports. All in all, due to their combination of corrosion resistance, aesthetic appeal, and strength, stainless steel pipes are a widely favored choice for architectural purposes.
- Q: What is the difference between 304Cb and 316Cb stainless steel pipes?
- The main difference between 304Cb and 316Cb stainless steel pipes lies in their chemical composition and their respective properties. 304Cb stainless steel is an austenitic stainless steel alloy that contains chromium and nickel. It also has a small amount of niobium, which enhances its resistance to intergranular corrosion. This makes 304Cb stainless steel pipes suitable for a wide range of applications, including food processing, chemical and petrochemical industries, and architectural purposes. On the other hand, 316Cb stainless steel is also an austenitic stainless steel alloy that contains chromium and nickel. However, it has a higher percentage of molybdenum, which gives it superior resistance to corrosion and pitting in chloride environments. This makes 316Cb stainless steel pipes ideal for applications where exposure to saltwater or other corrosive substances is common, such as marine environments or coastal areas. In summary, while both 304Cb and 316Cb stainless steel pipes are excellent choices for various applications, 316Cb stainless steel offers better corrosion resistance in chloride environments due to its higher molybdenum content. Depending on the specific needs and environment of the application, one may be more suitable than the other.
- Q: What is the difference between seamless and seamless redrawn stainless steel pipes?
- Seamless stainless steel pipes and seamless redrawn stainless steel pipes belong to the same category of stainless steel pipes. However, their manufacturing processes and properties differ. Seamless stainless steel pipes are created by piercing a solid stainless steel billet and then using methods like hot rolling, cold rolling, or extrusion to transform it into a seamless tube. This process ensures that the pipe is continuous and free from any welding or joining of separate pieces. As a result, seamless pipes are known for their exceptional strength, durability, and resistance to corrosion. On the other hand, seamless redrawn stainless steel pipes are produced by subjecting a seamless pipe to a secondary process known as cold drawing or cold rolling. This process involves pulling the pipe through a die or a series of dies to reduce its diameter and enhance its surface finish. The cold drawing process significantly improves the dimensional accuracy, surface finish, and mechanical properties of the pipe. The primary distinction between seamless and seamless redrawn stainless steel pipes lies in their manufacturing processes and resulting properties. Due to their uninterrupted grain structure and absence of welds, seamless pipes generally exhibit higher strength and corrosion resistance compared to redrawn pipes. Consequently, they are commonly used in applications that require resistance to high pressure, temperature, or corrosion, such as oil and gas pipelines, chemical processing plants, and power generation facilities. Although slightly inferior in terms of strength and corrosion resistance, seamless redrawn stainless steel pipes offer superior dimensional accuracy, surface finish, and tight tolerances. Therefore, they find application in industries like automotive, aerospace, and pharmaceuticals, where precise dimensions and excellent surface quality are of utmost importance. In conclusion, the choice between seamless and seamless redrawn stainless steel pipes depends on the specific requirements of the application, including the desired level of strength, corrosion resistance, dimensional accuracy, and surface finish. Both types of pipes offer advantages, but the decision ultimately depends on the specific needs of the project.
- Q: Can stainless steel pipes be cut to length?
- Yes, stainless steel pipes can be cut to length.
- Q: What are stainless steel pipes used for?
- Various industries widely use stainless steel pipes because of their exceptional durability, resistance to corrosion, and high strength. These pipes have extensive applications in plumbing systems, oil and gas industries, chemical processing plants, food and beverage processing, pharmaceutical industries, and automotive manufacturing, among others. Plumbing systems favor stainless steel pipes due to their ability to withstand high pressure and temperature, making them suitable for transporting water, gas, and other fluids. They are also commonly used in sewage and drainage systems because of their resistance to corrosion and chemical substances. In the oil and gas industries, stainless steel pipes are indispensable for transporting petroleum products, natural gas, and other fluids under high pressure and extreme temperatures. Their corrosion resistance properties make them essential in offshore and onshore drilling operations, refineries, and petrochemical plants, ensuring the safe and efficient transportation of these substances. Chemical processing plants rely on stainless steel pipes because of their resistance to chemical reactions and high temperatures. These pipes are used to transport various corrosive chemicals and gases without the risk of contamination or leakage. Additionally, they are utilized in heat exchangers, reactors, and other equipment that require corrosion-resistant materials. The food and beverage industry heavily relies on stainless steel pipes due to their hygiene and sanitary properties. These pipes are used for conveying various food products, such as milk, wine, beer, and other liquids, without altering their taste or quality. They are easy to clean, maintain, and sterilize, making them ideal for this industry. In the pharmaceutical sector, stainless steel pipes play a crucial role in conveying various drugs, chemicals, and sterile fluids. They meet the stringent requirements of the industry by ensuring product purity, preventing contamination, and offering resistance to corrosion and temperature extremes. Furthermore, stainless steel pipes are utilized in automotive manufacturing because of their structural strength and resistance to heat and corrosion. They are used in exhaust systems, fuel lines, and other components where durability and resistance to extreme conditions are necessary. In conclusion, stainless steel pipes are versatile and essential in numerous industries, providing the perfect combination of strength, durability, and corrosion resistance required for a wide range of applications.
- Q: What are the common applications for stainless steel pipes?
- Stainless steel pipes have a wide range of applications due to their unique properties and versatility. Some of the common applications for stainless steel pipes include: 1. Plumbing and water supply systems: Stainless steel pipes are commonly used in plumbing and water supply systems due to their corrosion resistance and ability to withstand high pressure. They provide a reliable and long-lasting solution for transporting water and other fluids. 2. Oil and gas industry: Stainless steel pipes are extensively used in the oil and gas industry for transporting oil, gas, and other hydrocarbons. They can withstand high temperatures and pressures, making them suitable for exploration, production, and transportation of these resources. 3. Food and beverage industry: Stainless steel pipes are widely used in the food and beverage industry due to their hygienic properties and resistance to corrosion. They are commonly used for transporting liquids, such as milk, juices, and processed foods, ensuring the safety and quality of the products. 4. Chemical and pharmaceutical industry: Stainless steel pipes are highly resistant to corrosion, making them ideal for the chemical and pharmaceutical industry. They are used for transporting various chemicals, acids, and solvents, ensuring the integrity of the substances being transported. 5. Construction and architecture: Stainless steel pipes are used in construction and architectural applications due to their aesthetic appeal and structural strength. They are often used for handrails, balustrades, structural columns, and decorative applications, adding a modern and sleek look to buildings. 6. Automotive industry: Stainless steel pipes are utilized in the automotive industry for exhaust systems due to their heat resistance and durability. They can withstand high temperatures and corrosive gases, ensuring the efficient operation of the exhaust system. 7. Power generation: Stainless steel pipes are used in power plants for transporting steam, water, and other fluids. They are resistant to high temperatures and pressures, making them suitable for power generation applications. 8. Aerospace industry: Stainless steel pipes are utilized in the aerospace industry for various applications, including aircraft exhaust systems, hydraulic systems, and fuel lines. They offer high strength-to-weight ratio, corrosion resistance, and reliability, meeting the stringent requirements of the aerospace industry. In summary, stainless steel pipes find applications in various industries due to their corrosion resistance, durability, and versatility. They are used in plumbing, oil and gas, food and beverage, chemical and pharmaceutical, construction, automotive, power generation, and aerospace industries, among others.
- Q: Can stainless steel pipes be insulated with polyethylene naphthalate?
- Yes, stainless steel pipes can be insulated with polyethylene naphthalate (PEN). Polyethylene naphthalate is a high-performance thermoplastic material that offers excellent insulation properties. It has low thermal conductivity, which makes it suitable for insulating pipes and preventing heat loss or gain. Additionally, PEN has good resistance to chemicals, moisture, and UV radiation, making it a durable choice for pipe insulation. However, it is important to ensure that the selected insulation material is compatible with the specific application and operating conditions to ensure optimal performance and longevity.
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Stainless Duplex Seamless Steel Pipe 31500
- Ref Price:
-
- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 m.t.
- Supply Capability:
- 5000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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