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: What is the average lifespan of steel pipes in different applications?: The lifespan of steel pipes in different applications can vary due to various factors, such as the quality of the steel, the environment in which they are used, and the maintenance and care they receive. Water supply lines typically have steel pipes that can last around 50 to 70 years on average. These pipes are often made of high-quality steel and experience less corrosive environments. However, the presence of corrosive substances, water chemistry, and soil conditions can significantly impact their lifespan. For industrial applications like oil and gas pipelines, steel pipes generally have a lifespan ranging from 20 to 50 years. These pipes are exposed to aggressive environments with high temperatures, pressure, and corrosive substances. Extending their lifespan can be achieved through regular inspections, maintenance, and corrosion protection measures. In construction applications, steel pipes used for structural purposes can last an average of 50 to 100 years or longer. These pipes are designed to withstand heavy loads and are often safeguarded by coatings or insulation to prevent corrosion. It's important to understand that these are average lifespans, and individual pipes may have shorter or longer lifespans depending on specific conditions. Ensuring the longevity of steel pipes in different applications can be achieved through regular inspections, maintenance, and timely repairs or replacements when necessary.

Q: What is the shear strength of steel pipes?: The shear strength of steel pipes can vary depending on various factors such as the grade of steel, size and thickness of the pipe, and any additional treatments or coatings applied. Generally, the shear strength of steel pipes is high due to the inherent strength of steel, making them suitable for various structural and industrial applications.

Q: How are steel pipes used in the defense sector?: Steel pipes are used in the defense sector for various purposes such as constructing military infrastructure, manufacturing weapons, and creating protective barriers. They are often utilized in the construction of military bases, ammunition storage facilities, and communication systems. Steel pipes are also crucial for manufacturing armored vehicles, artillery, and missile systems. Additionally, they are employed in creating barriers and fortifications to enhance security and defense capabilities.

Q: How are steel pipes protected against abrasive wear?: Steel pipes are protected against abrasive wear through various methods such as lining the interior of the pipes with abrasion-resistant materials, applying protective coatings on the pipe surface, or using ceramic tiles or liners. These measures help minimize the effects of friction and abrasion, ensuring the longevity and durability of the steel pipes.

Q: How are steel pipes protected against internal corrosion?: Steel pipes are protected against internal corrosion through various methods, such as applying protective coatings or linings to the inner surface of the pipes. These coatings act as a barrier between the steel surface and the corrosive elements present in the transported fluids. Additionally, cathodic protection can be employed, where a sacrificial anode or an impressed current system is used to prevent corrosion by diverting the electrical current away from the steel surface. Regular maintenance and monitoring are also crucial to ensure the ongoing protection of steel pipes against internal corrosion.

Q: Can steel pipes be used for compressed air systems?: Yes, steel pipes can be used for compressed air systems. Steel pipes are commonly used due to their durability, corrosion resistance, and ability to withstand high pressure. However, it is important to ensure that the steel pipes are properly sized and installed to meet the specific requirements of the compressed air system.

Q: How are steel pipes used in the manufacturing of solar power systems?: Steel pipes are commonly used in the manufacturing of solar power systems for various purposes. They are used as structural supports for solar panels, providing stability and durability. Additionally, steel pipes are often utilized for the transportation of fluids such as water or heat transfer fluids, enabling the efficient circulation of these substances within the solar power system.

Q: What are the different grades of steel used in pipe manufacturing?: There are various grades of steel used in pipe manufacturing, including carbon steel, stainless steel, alloy steel, and high-strength low-alloy (HSLA) steel. Each grade has different characteristics and properties, making them suitable for specific applications and environments.

Q: What are the common factors affecting the lifespan of steel pipes?: There are several common factors that can affect the lifespan of steel pipes. 1. Corrosion: Corrosion is one of the primary factors that can significantly reduce the lifespan of steel pipes. Exposure to moisture, chemicals, and harsh environmental conditions can cause the steel to rust and deteriorate over time. 2. Quality of materials: The quality of the steel used in manufacturing the pipes plays a crucial role in determining their lifespan. Higher-quality steel with better resistance to corrosion and other forms of degradation will generally have a longer lifespan compared to lower-grade materials. 3. Installation and maintenance practices: Proper installation and regular maintenance are essential for ensuring the longevity of steel pipes. Improper installation techniques, such as inadequate support or improper alignment, can lead to premature failure. Similarly, neglecting routine maintenance, such as cleaning and inspection, can accelerate the degradation process. 4. Operating conditions: The operating conditions to which steel pipes are exposed can also impact their lifespan. Factors such as temperature, pressure, and the type of fluid or gas being transported can all affect the integrity of the pipes. Extreme conditions, such as high temperatures or corrosive substances, can significantly reduce the lifespan of steel pipes. 5. Mechanical stress: Excessive mechanical stress, such as vibration, impact, or heavy loads, can weaken steel pipes over time. This stress can lead to cracking, deformation, or even complete failure if not properly managed or accounted for during the design and installation process. 6. Environmental factors: The surrounding environment can have a significant impact on the lifespan of steel pipes. Exposure to harsh weather conditions, such as extreme temperature variations or frequent freeze-thaw cycles, can accelerate the deterioration process. Additionally, the presence of pollutants or aggressive substances in the surrounding soil or water can also contribute to the degradation of steel pipes. In summary, the lifespan of steel pipes can be affected by factors such as corrosion, material quality, installation and maintenance practices, operating conditions, mechanical stress, and environmental factors. By considering and addressing these factors, it is possible to extend the lifespan of steel pipes and ensure their durability and reliability.

Q: How are steel pipes used in the manufacturing of agricultural machinery and equipment?: Due to their various advantageous properties, steel pipes have become widely utilized in the production of agricultural machinery and equipment. These pipes are employed in multiple ways to improve the efficiency and durability of such machinery. A primary application of steel pipes in agricultural machinery is their use in constructing frames and chassis. The exceptional strength and structural integrity of steel pipes make them an ideal choice for supporting heavy loads and enduring the demanding conditions often encountered in agricultural operations. Whether it is a tractor, combine harvester, or tillage equipment, steel pipe frames provide the necessary stability and sturdiness required for these machines to function efficiently in the field. Another common use of steel pipes in agricultural machinery is within hydraulic systems. These pipes function as conduits for hydraulic fluids, ensuring the smooth and reliable operation of various components, such as hydraulic cylinders, pumps, and motors. Thanks to their corrosion resistance and ability to withstand high pressure, steel pipes contribute to the longevity of hydraulic systems, reducing maintenance and repair costs for agricultural machinery. Moreover, steel pipes find application in the exhaust systems of agricultural equipment. To minimize environmental impact and maintain engine performance, it is essential to safely and efficiently expel the exhaust gases produced by engines. Steel pipes with suitable thickness and thermal resistance are employed in constructing exhaust systems, enabling the effective removal of exhaust gases while reducing noise pollution. Additionally, steel pipes are utilized in the manufacturing of irrigation systems and equipment used in agriculture. Whether it involves transporting water from a source to the fields or distributing water to crops through sprinklers or drip irrigation, steel pipes provide the necessary durability and pressure resistance for efficient water delivery while minimizing leaks. In conclusion, the incorporation of steel pipes in the manufacturing of agricultural machinery and equipment plays a vital role in enhancing their performance, durability, and efficiency. The exceptional strength, structural integrity, corrosion resistance, and high pressure capabilities of steel pipes make them indispensable components in various applications within the agricultural sector.

Send your message to us

*Email

*TEL

*Quantity

*Unit