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: How do you prevent erosion in stainless steel pipes?
- One way to prevent erosion in stainless steel pipes is by applying protective coatings or linings to the interior surface of the pipes. These coatings act as a barrier, preventing direct contact between the corrosive fluids or materials and the stainless steel, thereby reducing the risk of erosion.
- Q: Can stainless steel pipes be used for exhaust systems?
- Yes, stainless steel pipes can be used for exhaust systems. Stainless steel is a popular material for exhaust systems due to its high resistance to corrosion and heat. It can withstand the extreme temperatures and harsh conditions that exhaust systems are subjected to, making it a durable and long-lasting option. Stainless steel pipes also have the advantage of being lightweight, which can help improve the performance of the exhaust system. Additionally, stainless steel pipes can be easily bent and shaped, allowing for customization to fit different vehicle models and configurations. Overall, stainless steel pipes are a reliable choice for exhaust systems, providing excellent performance and longevity.
- Q: Can stainless steel pipes be used for fire sprinkler systems?
- Yes, stainless steel pipes can be used for fire sprinkler systems. Stainless steel is a highly durable and corrosion-resistant material, making it suitable for use in fire protection systems. It can withstand high temperatures and pressure, ensuring the reliability and longevity of the sprinkler system. Additionally, stainless steel pipes have a low thermal expansion coefficient, which reduces the risk of leaks or bursts due to temperature changes. These properties make stainless steel pipes a preferred choice for fire sprinkler systems in both commercial and residential buildings.
- Q: Can stainless steel pipes be pickled?
- Yes, stainless steel pipes can be pickled. Pickling is a process that removes surface impurities and oxides from the stainless steel, resulting in a clean and corrosion-resistant surface. This process is commonly used to prepare stainless steel pipes for further treatments or applications.
- Q: Why pickling before cleaning stainless steel pipe oil?
- Because of this, it can make a good foundation for the formation of passive film on the premise of the effective place, the magazine and the oxide, so as to make the passivation film more compact and improve the passivation effect!!
- Q: What is the difference between seamless and welded stainless steel pipes?
- The manufacturing process and resulting characteristics are what set seamless and welded stainless steel pipes apart. Seamless pipes are made by piercing a solid billet or ingot, heating it to a high temperature, and then rolling it into a hollow cylindrical shape. This ensures a smooth and uniform surface with no seams or joints. Seamless pipes are known for their higher strength and better corrosion resistance compared to welded pipes. They are the preferred choice for applications involving high pressure or temperature, as their seamless nature makes them more reliable and less prone to leaks. On the other hand, welded pipes are created by joining two or more pieces of steel using different welding techniques. This process introduces a seam or weld line along the length of the pipe. Welded pipes can be produced continuously or intermittently, depending on the specifications required. Although they may have slightly lower strength and corrosion resistance than seamless pipes, advancements in welding technology have greatly improved their quality and performance. Welded pipes are generally more cost-effective and commonly used in applications with lower pressure or temperature requirements. In conclusion, the differences between seamless and welded stainless steel pipes stem from their manufacturing processes and resulting characteristics. Seamless pipes offer higher strength, better corrosion resistance, and are preferred for high-pressure or temperature applications. Welded pipes are more cost-effective, commonly used for lower-pressure or temperature applications, and have seen significant enhancements in quality and performance. Ultimately, the choice of pipe type depends on the specific needs of the application and cost considerations.
- Q: Can stainless steel pipes be galvanized?
- Indeed, it is possible to galvanize stainless steel pipes. Galvanization refers to the application of a safeguarding zinc coating on steel or iron to thwart the occurrence of rust. Although stainless steel already possesses a high level of resistance to corrosion, galvanization can serve as an extra layer of defense in specific situations. However, it is worth mentioning that galvanizing stainless steel pipes is not as prevalent as galvanizing carbon steel pipes since the innate corrosion resistance of stainless steel is generally satisfactory for most applications. Moreover, the process of galvanizing stainless steel can modify its visual appearance and may not be suitable for certain aesthetic prerequisites.
- Q: Are stainless steel pipes suitable for chemical reactors?
- Yes, stainless steel pipes are suitable for chemical reactors. Stainless steel is a highly durable and corrosion-resistant material, making it ideal for handling various chemicals and corrosive substances. It offers excellent resistance to both high and low temperatures, as well as resistance to oxidation and scaling. Stainless steel pipes can withstand the harsh conditions inside a chemical reactor, including high pressure and aggressive chemicals. Additionally, stainless steel pipes are easy to clean and maintain, ensuring the integrity and longevity of the chemical reactor system. Overall, stainless steel pipes provide a reliable and safe solution for transporting chemicals in chemical reactors.
- Q: Can stainless steel pipes be used for sewage pumping stations?
- Yes, stainless steel pipes can be used for sewage pumping stations. Stainless steel is known for its corrosion-resistant properties, making it an ideal material for applications involving sewage and wastewater. Stainless steel pipes are durable, strong, and can withstand the harsh conditions and corrosive elements found in sewage systems. Additionally, stainless steel is hygienic and easy to clean, which is essential for maintaining the cleanliness and functionality of a sewage pumping station. Therefore, stainless steel pipes are a reliable and long-lasting choice for sewage pumping stations.
- Q: Can stainless steel pipes be used for oil pipelines?
- Yes, stainless steel pipes can be used for oil pipelines. Stainless steel is known for its high corrosion resistance, making it suitable for transporting various fluids, including oil. It is also durable and can withstand high pressure and temperature conditions, making it an ideal choice for oil pipelines. Additionally, stainless steel pipes have a smooth interior surface, which helps in reducing friction and improving the flow of oil. However, the selection of stainless steel grade and proper coating should be considered to ensure the pipes' compatibility with the specific type of oil and the environmental conditions in which they will be used.
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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
OKorder Financial Service
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