Stainless Duplex Seamless Steel Pipe 31500
- Ref Price:
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- 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 wire is used for welding of 316 stainless steel line?
- Quality inspection of welding groove preparation, according to requirements of groove size, accuracy and surface quality stipulated in construction instruction and welding process instruction, groove quality including flatness, perpendicularity and cleanness.1, check the groove processing size (height, angle, edge and blunt edge, etc.) and accuracy isDoes it meet the relevant technical standards?.2, check the groove surface roughness and surface defects (cutting gap, crack,Layer and slag) if beyond the scope of the standard should be allowed to defect, repair treatment, such as surface roughness does not reach the standard, can use abrasive grinding.3. Check the surface cleaning quality of the groove. At least 200mm of the groove face and its sidesShould be clean within the scope, without burr, slag, rust, oil, film and paint and other harmful foreign bodies.4 、 nondestructive inspection of groove surface. For welding process documentation, specify the slopeMaterials such as CY-M steel, Fe-CY-N, high temperature steel and alloy steel shall be examined on the surface for nondestructive testing (such as coloring, etc.), and the defects such as cracks shall be removed.
- Q:Do stainless steel pipes require any special coatings?
- Stainless steel pipes, being resistant to corrosion and staining, are highly durable and long-lasting. Their inherent corrosion resistance eliminates the need for extra coatings or treatments. The presence of chromium in the alloy composition creates a protective oxide layer on the surface, preventing rust and corrosion. As a result, stainless steel pipes can be used in various applications without the necessity of special coatings for protection.
- Q:What is the weight of a stainless steel pipe?
- The weight of a stainless steel pipe can vary depending on its dimensions and thickness. Generally, it is determined by calculating the volume of the pipe and multiplying it by the density of stainless steel.
- Q:How do you prevent condensation in stainless steel pipes?
- To prevent condensation in stainless steel pipes, it is important to insulate the pipes properly. This can be done by using insulation materials specifically designed for pipes, such as foam or fiberglass insulation. Additionally, ensuring that the pipes are properly sealed and free from any leaks will also help minimize condensation. Proper ventilation in the area around the pipes can also help reduce moisture buildup and prevent condensation from occurring.
- Q:Can stainless steel pipes handle extreme weather conditions?
- Yes, stainless steel pipes are known for their excellent durability and resistance to extreme weather conditions. They can withstand high temperatures, heavy rains, strong winds, and even harsh chemicals without corroding or deteriorating. The inherent properties of stainless steel, such as its high strength, corrosion resistance, and heat resistance, make it an ideal choice for outdoor applications and extreme weather conditions. Stainless steel pipes can handle extreme heat and cold, as well as resist the effects of UV radiation and oxidation. These pipes are often used in industries such as oil and gas, chemical processing, construction, and marine applications, where they are subjected to harsh environments. Overall, stainless steel pipes are a reliable and long-lasting solution for handling extreme weather conditions.
- Q:What is the thermal conductivity of stainless steel pipes?
- Depending on the specific grade and composition of stainless steel, the thermal conductivity of stainless steel pipes can vary. On average, the thermal conductivity of stainless steel ranges from 14 to 19 watts per meter Kelvin (W/mK). This indicates that stainless steel pipes exhibit relatively efficient heat conduction, facilitating the transfer of thermal energy. Consequently, stainless steel pipes are well-suited for a multitude of applications that necessitate heat transfer, including heating systems, industrial processes, and certain plumbing installations.
- Q:Can stainless steel pipes be insulated with polyethylene-terephthalate glycol?
- No, stainless steel pipes cannot be insulated with polyethylene-terephthalate glycol.
- Q:Are stainless steel pipes suitable for breweries?
- Yes, stainless steel pipes are highly suitable for breweries. They are corrosion-resistant, easy to clean, and maintain the quality of the beer by preventing contamination. Additionally, stainless steel pipes can withstand high temperatures and pressures, making them ideal for the brewing process.
- Q:Are stainless steel pipes resistant to erosion-corrosion?
- Yes, stainless steel pipes are highly resistant to erosion-corrosion. Stainless steel is a corrosion-resistant alloy that contains a high amount of chromium, which forms a protective oxide layer on the surface of the metal. This oxide layer acts as a barrier, preventing the metal from coming into direct contact with corrosive substances. Additionally, stainless steel pipes have excellent resistance to erosion, which is the gradual wearing away of the metal due to the movement of particles or fluids. The smooth surface of stainless steel pipes helps minimize the impact of erosion, making them highly durable and long-lasting. Therefore, stainless steel pipes are an ideal choice for applications where erosion-corrosion is a concern, such as in chemical processing plants, oil refineries, and marine environments.
- Q:Can stainless steel pipes be used for geothermal applications?
- Indeed, geothermal applications can make use of stainless steel pipes. Stainless steel is renowned for its durability and resistance to corrosion, enabling it to withstand the challenging conditions and elevated temperatures commonly found in geothermal systems. Its exceptional resistance to corrosion caused by minerals and chemicals present in the geothermal fluid makes it particularly well-suited for such applications. Moreover, stainless steel pipes exhibit outstanding heat transfer properties, crucial for efficient heat exchange within geothermal systems. Furthermore, these pipes boast an extended lifespan and demand minimal maintenance, rendering them a dependable option for geothermal applications.
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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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