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 used for water treatment facilities?
- Yes, stainless steel pipes can be used for water treatment facilities. Stainless steel is a preferred material choice for water treatment facilities due to its excellent corrosion resistance properties. Water treatment facilities deal with various chemicals and substances that can cause corrosion in pipes over time. Stainless steel, being highly resistant to corrosion, provides a durable and long-lasting solution for transporting water and other fluids in these facilities. Additionally, stainless steel pipes have a smooth surface finish, which inhibits the growth of biofilms and reduces the risk of contamination in water treatment processes. This is crucial for maintaining the quality and safety of the treated water. Another advantage of using stainless steel pipes in water treatment facilities is their ability to withstand high temperatures and pressures. They can handle the demanding operational conditions often encountered in water treatment processes. Furthermore, stainless steel pipes are hygienic and easy to clean, making them ideal for use in water treatment facilities where cleanliness and sanitation are of utmost importance. Overall, stainless steel pipes offer a reliable, corrosion-resistant, hygienic, and durable solution for water treatment facilities, making them a suitable choice for transporting water and other fluids in such settings.
- Q:How do you prevent freezing in stainless steel pipes?
- There are several measures that can be taken to prevent freezing in stainless steel pipes: 1. Insulating the pipes is a highly effective method. You can wrap the pipes with insulation sleeves or use foam pipe insulation. This will help maintain the pipes' temperature and prevent them from becoming too cold. 2. Heat tracing is another effective technique. This involves installing electric heat cables along the pipes' length. These cables generate heat and keep the pipes warm, thus preventing freezing. 3. It is crucial to maintain a constant temperature in the area where the stainless steel pipes are located. If the pipes are exposed to extreme cold temperatures, make sure to heat the area properly. You can use space heaters or insulate the surrounding walls to retain heat. 4. Keeping the water flowing through the pipes is essential. Moving water is less likely to freeze compared to stagnant water. If the pipes are used for water transportation, ensure that the water keeps flowing, even if it's just a small trickle. This continuous flow will help prevent freezing. 5. Check for any air leaks or drafts around the stainless steel pipes. Cold air entering the space can cause the pipes to freeze. Seal any gaps or cracks with weatherstripping or caulk to prevent cold air from entering. 6. Monitoring the temperature in the area where the stainless steel pipes are located is important. Install a thermometer to keep track of the temperature. This will help identify any potential freezing risks and allow you to take necessary precautions in advance. By implementing these preventive measures, you can effectively safeguard your stainless steel pipes from freezing and avoid potential damage.
- Q:Can stainless steel pipes be used for oil refineries?
- Stainless steel pipes are indeed suitable for use in oil refineries due to their durability and resistance to corrosion. This material is capable of handling a wide range of fluids and chemicals commonly found in such facilities. Moreover, the strength and ability to withstand high temperatures and pressure make stainless steel pipes perfect for the transportation and processing of crude oil, refined petroleum products, and other hydrocarbons within the refining industry. Notably, these pipes exhibit outstanding corrosion resistance, which is vital in environments where oil and various chemicals are present. This resistance is instrumental in preventing leakage and ensuring the integrity of the piping system, ultimately enhancing the safety and efficiency of oil refinery operations.
- Q:Can stainless steel pipes be used for air conditioning systems?
- Yes, stainless steel pipes can be used for air conditioning systems. Stainless steel is known for its corrosion resistance, durability, and ability to handle high temperatures, making it a suitable material for air conditioning systems. It helps maintain the quality of air and prevents contamination due to its non-reactive nature. Additionally, stainless steel pipes offer excellent mechanical strength and are resistant to damage caused by external factors such as moisture or chemicals.
- Q:Are stainless steel pipes more expensive than other materials?
- Stainless steel pipes are generally more expensive than other materials, but they offer significant advantages that justify their higher cost. Stainless steel pipes are known for their exceptional durability, corrosion resistance, and longevity. They can withstand extreme temperatures, harsh chemicals, and high pressure, making them suitable for a wide range of applications such as construction, plumbing, and industrial processes. Additionally, stainless steel pipes require minimal maintenance, reducing long-term costs. While the initial investment may be higher, the superior performance and extended lifespan of stainless steel pipes make them a worthwhile choice in many scenarios. Ultimately, the decision to choose stainless steel pipes should be based on the specific requirements and budget constraints of the project.
- Q:Can stainless steel pipes be used for petrochemical applications?
- Yes, stainless steel pipes can be used for petrochemical applications. Petrochemical processes involve the handling and transportation of various corrosive and high-temperature substances, and stainless steel pipes offer excellent resistance to corrosion and high temperatures. Stainless steel is known for its ability to withstand aggressive chemicals, such as acids and alkalis, as well as its resistance to stress corrosion cracking. Additionally, stainless steel pipes are highly durable and have a long lifespan, making them suitable for the demanding conditions of petrochemical applications.
- Q:What is the difference between 904L and 2205 stainless steel pipes?
- 904L and 2205 are both types of stainless steel pipes, but they have some key differences. Firstly, the composition of the two steels is different. 904L stainless steel is a high alloy austenitic stainless steel that contains high levels of chromium, nickel, and molybdenum. It also has low carbon content, making it highly resistant to corrosion and pitting. On the other hand, 2205 stainless steel is a duplex stainless steel that consists of a mixture of austenite and ferrite phases. It contains lower levels of chromium and nickel compared to 904L, but has higher levels of molybdenum and nitrogen. Secondly, the mechanical properties of the two steels differ. 904L stainless steel has excellent toughness and high strength, making it suitable for applications in aggressive environments such as chemical processing plants and offshore oil and gas platforms. In contrast, 2205 stainless steel has good overall mechanical properties, with high tensile and yield strength. It is commonly used in industries such as marine, paper, and pulp, where resistance to stress corrosion cracking is important. Another difference lies in their resistance to corrosion. While both steels are corrosion-resistant, 904L stainless steel has exceptional resistance to a wide range of corrosive environments, including sulfuric acid, hydrochloric acid, and saltwater. This makes it ideal for use in industries where extreme corrosion resistance is required. 2205 stainless steel, although not as corrosion-resistant as 904L, still offers good resistance to many corrosive substances, making it suitable for various applications. Cost is another factor that sets these steels apart. Due to its high alloy content and superior properties, 904L stainless steel is generally more expensive than 2205 stainless steel. Therefore, the choice between the two will depend on the specific requirements of the application and the budget. In summary, the main differences between 904L and 2205 stainless steel pipes lie in their composition, mechanical properties, corrosion resistance, and cost. Understanding these distinctions will help in selecting the appropriate stainless steel pipe for a given application.
- Q:What is the maximum temperature that stainless steel pipes can handle?
- The maximum temperature that stainless steel pipes can handle depends on the specific grade of stainless steel being used. Generally, most stainless steel pipes can withstand temperatures up to 1500°F (815°C) without significant deformation or damage. However, there are specialized grades of stainless steel that can withstand even higher temperatures, reaching up to 2200°F (1204°C). It is important to consult the manufacturer or engineer for the specific stainless steel grade and intended application to determine the precise maximum temperature limit.
- Q:How do stainless steel pipes compare to other materials like copper or PVC?
- Stainless steel pipes have several advantages over other materials such as copper or PVC. Firstly, stainless steel is highly resistant to corrosion and rust, making it suitable for various applications, especially in environments with high moisture or chemical exposure. Copper pipes, on the other hand, are susceptible to corrosion over time and may require additional protective coatings or treatments. Secondly, stainless steel pipes have excellent strength and durability, allowing them to withstand high pressure and temperature conditions. PVC pipes, although lightweight and easy to install, are not as strong as stainless steel and may crack or deform under extreme conditions. Another advantage of stainless steel pipes is their ability to handle a wide range of fluids, including corrosive substances and high-temperature liquids. PVC pipes, in contrast, are limited in their compatibility and may not be suitable for certain applications that require resistance to chemicals or extreme temperatures. Furthermore, stainless steel pipes offer superior fire resistance compared to PVC pipes, which are highly flammable and release toxic fumes when exposed to fire. This makes stainless steel pipes a safer option, especially in buildings or industries where fire safety is crucial. Lastly, stainless steel pipes have a longer lifespan compared to copper or PVC pipes. While copper pipes may develop leaks or pinholes over time, and PVC pipes may become brittle and crack, stainless steel pipes are designed to last for decades with minimal maintenance. In summary, stainless steel pipes are a reliable and durable choice for various applications due to their corrosion resistance, strength, versatility, fire resistance, and long lifespan. They outperform copper and PVC pipes in terms of durability, compatibility, safety, and overall performance, making them an excellent choice for a wide range of industries and 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.
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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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