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: What are the different types of stainless steel pipe bends?
- There are several different types of stainless steel pipe bends available in the market. Some of the most commonly used types include: 1. Long radius bends: These bends have a larger radius compared to other types, which results in a smoother flow of fluid or gas through the pipe. They are often used in applications where the flow needs to be maintained at a consistent speed or where there are concerns about pressure drop. 2. Short radius bends: These bends have a smaller radius, which means they have a tighter curvature compared to long radius bends. They are typically used in applications where space is limited, such as in tight corners or in compact piping systems. 3. U-bends: U-bends have a 180-degree curve, forming a U-shape. They are commonly used in heat exchanger systems, where they allow for the efficient transfer of heat between two fluids. 4. 3D bends: 3D bends have a radius three times the diameter of the pipe. They are often used in applications where there is a need for a gradual change in direction, as they provide a smoother flow compared to sharper bends. 5. 5D bends: 5D bends have a radius five times the diameter of the pipe. They are typically used in applications where there are strict requirements for fluid or gas flow, as they minimize pressure drop and turbulence. 6. Mandrel bends: Mandrel bends are formed using a mandrel, which is a solid rod inserted into the pipe during the bending process. This helps maintain the shape and integrity of the pipe, resulting in a smooth and uniform bend. Mandrel bends are often used in applications where there are strict requirements for the roundness and smoothness of the bend. It is important to choose the right type of stainless steel pipe bend based on the specific requirements of the application, such as the fluid or gas being transported, the pressure and temperature conditions, as well as any space limitations. Consulting with a professional or supplier can help ensure the appropriate selection of pipe bends for the specific application.
- Q: What color is stainless steel? What color is stainless steel pipe culture?
- You want to draw the stainless steel, or to mirror the drawing, usually gray, mirror is generally bright silver, of course, the color is also there, ah, you need it
- Q: Can stainless steel pipes be inspected for defects?
- Stainless steel pipes indeed undergo inspections to detect defects. Numerous methods and techniques exist for this purpose. A widely employed approach involves visual inspection, wherein well-trained inspectors visually examine the pipes' exterior surface to spot visible defects like cracks, corrosion, or dents. Apart from visual inspection, non-destructive testing (NDT) methods also prove useful for inspecting stainless steel pipes. NDT techniques like ultrasonic testing, radiographic testing, magnetic particle testing, and dye penetrant testing effectively identify internal defects such as cracks, weld flaws, or any other discontinuities that might jeopardize the pipe's integrity. These inspection methods guarantee that stainless steel pipes meet the necessary quality standards and specifications. By promptly detecting defects, appropriate actions can be taken to rectify or replace faulty pipes, thus ensuring a secure and reliable performance in various applications like plumbing, oil and gas pipelines, and industrial processes.
- Q: What are the different types of stainless steel pipe finishes?
- There are several different types of stainless steel pipe finishes, including brushed, mirror, satin, and mill finishes. Each finish has its own unique appearance and texture, ranging from a smooth and shiny surface to a more matte or textured finish. The choice of finish depends on the desired aesthetic and functional requirements of the application.
- Q: Can stainless steel pipes be used for water treatment facilities?
- Stainless steel pipes are suitable for water treatment facilities. The reason behind this preference is the excellent corrosion resistance properties of stainless steel. Since water treatment facilities handle various chemicals and substances that can cause corrosion in pipes, stainless steel is the ideal material choice. It provides a long-lasting and durable solution for transporting water and other fluids. Moreover, stainless steel pipes have a smooth surface finish, preventing the growth of biofilms and reducing the risk of contamination during water treatment processes. This is crucial for maintaining the quality and safety of the treated water. Another benefit 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 typically encountered in water treatment processes. Furthermore, stainless steel pipes are hygienic and easy to clean, making them perfect for use in water treatment facilities where cleanliness and sanitation are of utmost importance. In summary, stainless steel pipes are a reliable, corrosion-resistant, hygienic, and durable solution for water treatment facilities. They are well-suited for transporting water and other fluids in such settings.
- Q: What is the difference between sanitary and industrial stainless steel pipes?
- The primary distinction between sanitary and industrial stainless steel pipes lies in their intended purposes and the level of cleanliness needed. Sanitary stainless steel pipes are specifically designed for use in industries such as food and beverage, pharmaceuticals, and other environments where cleanliness and hygiene are crucial. These pipes are manufactured with a higher degree of surface finish, typically smooth and polished, to prevent bacterial growth and ensure easy cleaning. The inner surface of sanitary pipes is often electropolished to further enhance its smoothness and resistance to corrosion. Additionally, sanitary pipes are often equipped with tri-clamp fittings or other sanitary connections to facilitate easy disassembly for cleaning purposes. On the contrary, industrial stainless steel pipes find application in a diverse range of industries, including manufacturing, oil and gas, chemical processing, and construction. These pipes are usually designed to withstand high pressures, extreme temperatures, and harsh environments. Industrial pipes may have a rougher surface finish and may not require the same level of cleanliness as sanitary pipes. They are often welded or threaded together for assembly and are built to withstand heavy-duty usage. In conclusion, the main differences between sanitary and industrial stainless steel pipes can be found in their intended purposes, surface finish, and the level of cleanliness required. Sanitary pipes prioritize hygiene and easy cleaning, making them well-suited for food and pharmaceutical applications. Industrial pipes, on the other hand, focus on durability and strength to endure demanding industrial environments.
- Q: Can stainless steel pipes be used for gas pipelines?
- Yes, stainless steel pipes can be used for gas pipelines. Stainless steel is a highly durable and corrosion-resistant material, making it suitable for transporting various types of gases, including natural gas and propane. Stainless steel pipes also have high tensile strength, which allows them to withstand high pressure and temperature conditions that are often encountered in gas pipelines. Additionally, stainless steel is non-reactive, meaning it does not react with the gases being transported, ensuring the integrity and safety of the pipeline system. Overall, stainless steel pipes are a reliable choice for gas pipelines due to their strength, corrosion resistance, and ability to handle high-pressure environments.
- Q: Can stainless steel pipes be used for power generation?
- Yes, stainless steel pipes can be used for power generation. Stainless steel is widely used in power generation industries, especially in applications such as steam generation and distribution systems, as it offers excellent corrosion resistance, high temperature strength, and durability.
- Q: Are stainless steel tubes and galvanized steel tubes the same?
- It's quite different!The stainless steel pipe itself is made of stainless steel, and galvanized steel pipe is coated with zinc on the surface of the carbon steel tube
- Q: What is the difference between satin and brushed finishes in stainless steel pipes?
- Satin and brushed finishes are two common types of surface treatments used in stainless steel pipes. While both finishes enhance the appearance of the pipes and provide some level of corrosion resistance, there are distinct differences between them. A satin finish is achieved by using a fine abrasive material to create a smooth, even, and glossy surface. This finish is characterized by its reflective and shiny appearance, similar to that of satin fabric. It gives the stainless steel pipe a sleek and polished look, making it suitable for applications where aesthetics are important. Satin finishes are often used in architectural and decorative applications such as handrails, furniture, and kitchen appliances. On the other hand, a brushed finish is achieved by using a wire brush or abrasive pad to create a pattern of fine lines on the surface of the stainless steel pipe. This finish is characterized by its matte appearance with visible parallel lines running across the surface. Brushed finishes are less reflective than satin finishes and offer a more subdued, industrial look. They are commonly used in applications where durability and resistance to visible wear and tear are important, such as in machinery, automotive components, and commercial kitchen equipment. While both satin and brushed finishes provide some level of corrosion resistance, it is important to note that the surface texture of brushed finishes can make them slightly more resistant to visible scratches and scuffs compared to satin finishes. However, it is important to remember that the overall corrosion resistance of stainless steel is primarily determined by its alloy composition, not the surface finish. In summary, the main difference between satin and brushed finishes in stainless steel pipes lies in their appearance and intended use. Satin finishes offer a reflective and polished look suitable for decorative applications, while brushed finishes provide a more matte and industrial appearance for applications that require durability and resistance to visible wear and tear.
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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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