Stainless Steel Welded Pipe duplex ASTM A790/ASTM A789 GB/T21832-2008
- Ref Price:
-
- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 5000 m.t./month
OKorder Service Pledge
OKorder Financial Service
You Might Also Like
1、Structure of Stainless Steel Welded Pipe duplex ASTM A790/ASTM A789 GB/T21832-2008 Description：
Stainless steel welded pipe is actually a cover term, covering a wide range of alloy and making them suitable for different attributes that are used in a very wide and large numbers of different industries. Stainless steel pipe is resistant to erosion, highly flexible, powerful, easy to use, and can be done in distinct approaches, which means that more and more stainless steel was used as a construction material for large-scale, high impact buildings. It can be molded, rolling, and it can create amazing shapes to make it perfect, It is used as experimental buildings, The use of steel pipe welding of large stainless steel covers other examples.
2、Main Features of the Stainless Steel Welded Pipe duplex ASTM A790/ASTM A789 GB/T21832-2008：
• High manufacturing accuracy
• High strength
• Small inertia resistance
• Strong heat dissipation ability
• Good visual effect
•Reasonable price
3、Stainless Steel Welded Pipe duplex ASTM A790/ASTM A789 GB/T21832-2008 Images：
4、Stainless Steel Welded Pipe duplex ASTM A790/ASTM A789 GB/T21832-2008 Specification：
composition of duplex stainless pipe（%）
| Steel grade | C≤ | Mn≤ | Si≤ | S≤ | P≤ | Cr | Ni | Mo | Cu≤ | N |
| S32750((SAF2507) 00Cr22Ni7Mo4N | 0.03 | 1.20 | 0.80 | 0.020 | 0.035 | 24.0/ 26.0 | 6.0/ 8.0 | 3.0/ 5.0 | 0.50 | 0.24/ 0.32 |
| S31803（SAF2205） 00Cr22Ni5Mo3N | 0.03 | 2.00 | 1.0 | 0.02 | 0.030 | 21.0/ 23.0 | 4.50/ 6.50 | 2.50/ 3.50 | 0.08/ 0.20 | |
| S31500（3RE60） 00Cr18Ni5Mo3Si2 | 0.03 | 1.2/ 2.00 | 1. 4/ 2.00 | 0.030 | 0.030 | 18.0/ 19.0 | 4.25/ 5.25 | 2.50/ 2.00 | 0.05/ 0.10 |
Mechanical Properties of duplex pipe：
| Steel Grade | Heat Treatment Temperature ℃ | Ab（MPa）≥ | As（MPa）≥ | ∮≥ | brinell | rockwell |
| S32750（SAF2507） 00Cr22Ni5Mo3N | 1025-1125 water | 800 | 550 | 15 | 310 | 32 |
| S31803（SAF2205） 00Cr22Ni5Mo3N | 1020-1100 | 620 | 450 | 25 | 290 | 30.5 |
| S31500（3RE60） 00Cr18Ni5Mo3Si2 | 980-1040 | 630 | 440 | 30 | 290 | 30.5 |
Details：
Outer Diameter | 6mm--159mm | |||||
Thickness | 0.3mm - 3.0mm | |||||
Length | 6m or as customers' request | |||||
Surface | 180G, 320G, 400G Satin / Hairline 400G, 500G, 600G or 800G Mirror finish | |||||
Application | Decoration construction, upholstery, industry instrument | |||||
Test | Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT | |||||
5、FAQ of Stainless Steel Welded Pipe duplex ASTM A790/ASTM A789 GB/T21832-2008：
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: Can stainless steel pipes be used for oil refineries?
- Yes, stainless steel pipes can be used for oil refineries. Stainless steel is a highly durable and corrosion-resistant material, making it suitable for handling various fluids and chemicals, including those found in oil refineries. The high strength and resistance to high temperatures and pressure of stainless steel pipes make them ideal for transporting and processing crude oil, refined petroleum products, and other hydrocarbons in the refining industry. Additionally, stainless steel pipes offer excellent resistance to corrosion, which is crucial in environments where oil and various chemicals are present. This resistance helps prevent leakage and ensures the integrity of the piping system, contributing to the safety and efficiency of oil refinery operations.
- Q: Can stainless steel pipes be used for construction purposes?
- Yes, stainless steel pipes can be used for construction purposes. Stainless steel is a highly durable and corrosion-resistant material, making it suitable for various construction applications. It is commonly used in structural applications such as building frameworks, handrails, and support structures. Stainless steel pipes are also utilized for plumbing systems, drainage systems, and HVAC (heating, ventilation, and air conditioning) systems. Additionally, stainless steel pipes are often preferred in construction projects where hygiene and cleanliness are essential, such as in hospitals, food processing plants, and laboratories. Overall, stainless steel pipes offer excellent strength, longevity, and resistance to rust and corrosion, making them a reliable choice for construction purposes.
- Q: What is the difference between 904L and 316L stainless steel pipes?
- The composition of 904L and 316L stainless steel pipes sets them apart. 904L contains higher amounts of chromium, nickel, and molybdenum compared to 316L. Specifically, 904L has about 25% nickel and 4.5% molybdenum, while 316L contains approximately 10-14% nickel and 2-3% molybdenum. In terms of corrosion resistance, 904L stainless steel pipes outperform 316L due to their higher chromium, nickel, and molybdenum content. The increased alloying elements make 904L more resistant to localized corrosion, such as pitting and crevice corrosion, particularly in aggressive environments like seawater and acidic conditions. When it comes to strength and toughness, 904L stainless steel pipes have the upper hand over 316L. This makes them more suitable for applications requiring greater mechanical properties, like high-pressure and high-temperature environments. In terms of cost, 904L stainless steel is generally pricier than 316L due to its higher alloying elements. The increased cost is mainly due to the higher nickel and molybdenum content, which are more expensive metals. 316L stainless steel pipes find common usage in various industries, such as food processing, chemical processing, and pharmaceuticals, where corrosion resistance and good mechanical properties are crucial. On the other hand, 904L stainless steel pipes are primarily utilized in highly corrosive environments like offshore platforms, petrochemical plants, and desalination plants, thanks to their exceptional corrosion resistance. In summary, the main distinctions between 904L and 316L stainless steel pipes lie in their composition, corrosion resistance, strength, cost, and applications. While 316L is suitable for general-purpose applications, 904L is preferred in more demanding and corrosive environments.
- Q: How do you calculate the pipe length required for a specific application?
- To calculate the pipe length required for a specific application, you need to consider factors such as the flow rate, pressure drop, pipe material, and the type of fluid being transported. By using equations and formulas specific to fluid dynamics, you can determine the appropriate pipe length needed to achieve the desired flow and pressure conditions. Additionally, factors like pipe fittings, bends, and elbows also need to be taken into account when calculating the overall pipe length required.
- Q: Can stainless steel pipes be insulated with polyetherimide?
- Polyetherimide (PEI) is an exceptional thermoplastic that exhibits remarkable thermal stability and insulation capabilities, making it a suitable choice for insulating stainless steel pipes. With its excellent resistance to heat, chemicals, and electrical conductivity, PEI can effectively insulate stainless steel pipes in diverse industries such as oil and gas, chemical processing, and aerospace. Moreover, PEI's high glass transition temperature enables it to withstand elevated temperatures without melting or deforming, further enhancing its appropriateness for insulating stainless steel pipes.
- Q: What is the difference between Type 409 and Type 410 stainless steel pipes?
- Type 409 and Type 410 stainless steel pipes are two different grades of stainless steel that have distinct characteristics and applications. Type 409 stainless steel is a ferritic stainless steel that contains a lower percentage of chromium compared to Type 410. It is primarily composed of iron, carbon, and up to 11% chromium. This composition gives Type 409 stainless steel good corrosion resistance in low-oxygen environments and moderate resistance to pitting and crevice corrosion. It is often used in applications where high-temperature oxidation resistance is not required, such as automotive exhaust systems, catalytic converter shells, and heat exchangers. On the other hand, Type 410 stainless steel is a martensitic stainless steel that contains a higher percentage of chromium (around 11-13%) and a small amount of nickel. This composition provides Type 410 stainless steel with excellent corrosion resistance and good mechanical properties. It is a general-purpose stainless steel that can be heat treated to achieve high strength and hardness. Type 410 stainless steel is commonly used in applications where corrosion resistance and/or wear resistance is required, such as cutlery, surgical instruments, valves, and pump parts. In summary, the main difference between Type 409 and Type 410 stainless steel pipes lies in their composition and resulting properties. Type 409 stainless steel is a ferritic stainless steel with good corrosion resistance in low-oxygen environments, while Type 410 stainless steel is a martensitic stainless steel with excellent corrosion resistance and higher strength and hardness. The choice between these two types of stainless steel pipes depends on the specific application requirements and the desired properties needed for that application.
- Q: How long do stainless steel pipes last?
- Stainless steel pipes have an impressive lifespan and can last for several decades, depending on various factors such as the quality of the steel, installation techniques, and maintenance practices. In general, with proper care and maintenance, stainless steel pipes can last 50 years or more.
- Q: Can stainless steel pipes be insulated?
- Yes, stainless steel pipes can be insulated. Insulation is commonly used on pipes to prevent heat loss or gain, and stainless steel pipes are no exception. Insulating stainless steel pipes can provide several benefits, such as reducing energy costs, preventing condensation, and maintaining the temperature of the fluid inside the pipe. Various types of insulation materials, such as fiberglass, foam, or mineral wool, can be used to insulate stainless steel pipes, depending on the specific requirements of the application. Insulating stainless steel pipes is a common practice in industries such as oil and gas, chemical processing, and HVAC systems.
- Q: What are the different types of stainless steel pipe reducers?
- There are several types of stainless steel pipe reducers, including concentric reducers, eccentric reducers, threaded reducers, and socket weld reducers.
- Q: Can stainless steel pipes be used for natural gas?
- Yes, stainless steel pipes can be used for natural gas. Stainless steel is highly resistant to corrosion and can withstand the high pressures and temperatures associated with natural gas transmission and distribution. Additionally, stainless steel pipes have excellent fire resistance properties, making them a safe choice for natural gas applications.
Send your message to us
Stainless Steel Welded Pipe duplex ASTM A790/ASTM A789 GB/T21832-2008
- Ref Price:
-
- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 5000 m.t./month
OKorder Service Pledge
OKorder Financial Service
Similar products
Hot products
Hot Searches
Related keywords
