Stainless Duplex Seamless Steel Pipe System 1

Stainless Duplex Seamless Steel Pipe

Ref Price:

Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 3000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Product Description:

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：

Stainless Duplex Seamless Steel Pipe 31500

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.

Eddy Current Testing O.P Testing Radiography Testing	Corrosion Testing Micro Testing Macro Testing	IGC Testing Ultrasonic testing Liquid Penetrate testing

Eddy Current Testing
O.P Testing

Radiography Testing

Corrosion Testing
Micro Testing

Macro Testing

IGC Testing
Ultrasonic 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 steel pipes from rusting?: To prevent steel pipes from rusting, various measures can be taken. One effective method is to apply a protective coating on the surface of the pipes. This can be done using different types of coatings such as paint, epoxy, or zinc. These coatings act as a barrier between the steel and the corrosive environment, preventing moisture and oxygen from coming into direct contact with the metal and causing rust. Another approach is to use corrosion inhibitors. These substances are added to the water or fluid flowing through the pipes to create a protective film on the steel's surface. This film acts as a shield, inhibiting the corrosion process and preventing rust formation. Regular maintenance is crucial in preventing rust on steel pipes. This includes inspecting the pipes for any signs of damage or corrosion and promptly repairing or replacing any compromised areas. Additionally, keeping the pipes clean and dry by removing any accumulated dirt or moisture helps to prevent rust formation. In some cases, it may be beneficial to use stainless steel pipes instead of regular steel. Stainless steel contains chromium, which forms a passive oxide layer on the surface of the metal. This layer acts as a natural barrier against corrosion, making stainless steel pipes highly resistant to rust. Lastly, controlling the environment in which the pipes are installed can also help prevent rust. This can be achieved by maintaining proper ventilation, controlling humidity levels, and avoiding exposure to harsh chemicals or corrosive substances. By implementing these preventive measures, the lifespan and integrity of steel pipes can be significantly extended while minimizing the risk of rust formation.

Q: How are steel pipes used in the manufacturing of automobiles?: Steel pipes are commonly used in the manufacturing of automobiles due to their strength, durability, and versatility. They are used in various applications throughout the automobile manufacturing process. One of the main uses of steel pipes in automobiles is for the construction of the vehicle's chassis and body. Steel pipes are often used as structural components to provide strength and rigidity to the vehicle. They can be bent, shaped, and welded to form the desired structure, making them an ideal choice for automotive applications. Steel pipes are also used in the exhaust system of automobiles. The exhaust system is responsible for guiding and directing the exhaust gases away from the engine. Steel pipes are used to create the exhaust manifold, which collects the gases from the engine's cylinders, as well as the exhaust pipes and mufflers. The high temperature resistance and corrosion resistance of steel make it suitable for withstanding the harsh conditions of the exhaust system. In addition, steel pipes are used in the cooling system of automobiles. They are used to transport coolant from the engine to the radiator and back, helping to regulate the engine's temperature. Steel pipes are preferred for this application due to their ability to handle high pressure and temperature, as well as their resistance to corrosion and chemical damage. Moreover, steel pipes are used in the fuel system of automobiles. They are used to transport fuel from the tank to the engine, ensuring a steady and reliable supply of fuel. Steel pipes are chosen for this application because they are resistant to corrosion and can handle the high pressure and temperature associated with fuel transportation. In summary, steel pipes are essential in the manufacturing of automobiles. They are used in the construction of the chassis and body, the exhaust system, the cooling system, and the fuel system. Their strength, durability, and versatility make them a preferred choice for automotive applications.

Q: What is the difference between steel pipe and fiberglass pipe?: Steel pipe and fiberglass pipe differ in terms of their material composition, flexibility, resistance to corrosion, and cost. Steel pipe is made of an alloy of iron and carbon, known for its strength and durability, making it a popular choice for plumbing, construction, and industrial projects. In contrast, fiberglass pipe is composed of glass fibers embedded in a resin matrix, resulting in a lightweight and corrosion-resistant material suitable for applications requiring chemical resistance. Another contrasting factor between steel pipe and fiberglass pipe is their level of flexibility. Steel pipe is rigid and stiff, while fiberglass pipe offers greater flexibility, allowing it to bend and conform to different shapes and contours. This flexibility makes fiberglass pipe easier to install in tight spaces or areas with complex geometries. Corrosion resistance is another significant difference between the two materials. Steel pipe is susceptible to corrosion, particularly in environments with high moisture or chemical exposure. To counteract this, steel pipes are often coated or lined with corrosion-resistant materials. In contrast, fiberglass pipe is inherently resistant to corrosion due to its construction, making it a preferred choice for applications in saltwater environments or chemical processing plants. Cost is yet another factor that sets steel pipe and fiberglass pipe apart. Generally, steel pipe is more affordable than fiberglass pipe, especially for smaller diameter pipes. However, as the diameter and pressure rating increase, the cost of steel pipe can exceed that of fiberglass pipe. Additionally, fiberglass pipe requires less maintenance and has a longer lifespan, which can offset the initial cost difference over time. In conclusion, the differences between steel pipe and fiberglass pipe can be summarized in terms of their material composition, flexibility, corrosion resistance, and cost. The choice between these two types of pipes depends on various project requirements, including the application, environment, budget, and expected lifespan.

Q: How are steel pipes used in the construction of geothermal power plants?: Steel pipes are used in the construction of geothermal power plants for various purposes. They are primarily used to transport and circulate the geothermal fluid, which carries the heat from the underground reservoir to the surface. These pipes are typically made of high-quality steel that can withstand the high temperatures and corrosive nature of the geothermal fluid. Additionally, steel pipes are used in the construction of injection wells, where cool water or other fluids are injected back into the reservoir to maintain pressure and sustain the heat extraction process. Overall, steel pipes play a crucial role in the efficient and reliable operation of geothermal power plants.

Q: Are steel pipes suitable for underground drainage systems?: Yes, steel pipes are suitable for underground drainage systems. They are commonly used in such systems due to their durability, strength, and resistance to corrosion. Steel pipes can effectively handle the pressure and flow of water and other fluids, making them a reliable choice for underground drainage.

Q: How do steel pipes withstand high pressure and temperature?: Steel pipes are designed to withstand high pressure and temperature due to their inherent strength and durability. The composition of steel, with its high tensile strength and resistance to deformation, allows it to maintain its structural integrity even under extreme conditions. Additionally, steel pipes are often manufactured with thicker walls and reinforcement techniques to further enhance their ability to withstand pressure and temperature.

Q: Can steel pipes be used for the construction of tunnels?: Yes, steel pipes can be used for the construction of tunnels. Steel pipes are commonly used in tunnel construction for various purposes such as drainage, ventilation, and utility installations. They are strong, durable, and can withstand high pressures and loads, making them suitable for tunnel applications. Additionally, steel pipes can be easily fabricated, installed, and maintained, making them a popular choice in tunnel construction projects.

Q: How are steel pipes used in the construction of wind farms?: Steel pipes are commonly used in the construction of wind farms to support and secure the wind turbines. These pipes serve as the foundation for the turbines, providing stability and structural integrity. They are used to create the tower structure, which supports the nacelle and rotor blades. Additionally, steel pipes are used for transporting and distributing the electrical cables within the wind farm, ensuring efficient transmission of electricity generated by the turbines.

Q: What does "buried steel pipe" 6*2SC100 mean?: The embedded steel pipe 6*2SC100 refers to a welded steel pipe with 2 pipe thicknesses of 6mm and a diameter of 100mm. SC pipe means welded steel pipe. Embedment means pre installation (burial).

Send your message to us

*Email

*TEL

*Quantity

*Unit