Silicon Steels is a renowned supplier of the Duplex 2205 Seamless Pipes as well as a manufacturer. ASTM A790 Duplex 2205 Welded Pipe, aerated ferrite steel, can be used in corrosive conditions and can withstand localized corrosion such as stress corrosion cracking and tearing. Our Duplex Seamless S31803 tubes are extremely weldable and have low temperature toughness. Such seamless Duplex 2205 tubes are resistant to stress corrosion and overall corrosion.
UNS S32205 seamless Duplex Steel pipes have higher strength and are capable of easily handling pressures. Stored containers, pressurizing structures and structural systems are other technologies. Duplex UNS S32205 pipe benefits are greater power, greater resistance to corrosion, greater durability of metallurgy and superior properties after welding. UNS S31803 Welded Pipe is increasingly ferritic and completely ferritical, with high temperatures above 2000 degrees F, just under melting point. Usually, Duplex Steel UNS S32205 pipes are formed by 50 to 60 percent austenite, as seen on the picture. Duplex Steel S 31803 Pipes should be evenly heated and controlled in the range of 1750 degrees – 2250 degrees F when heated forming is required.
Duplex Steel S32205 Seamless pipes in comparison to other grades of stainless steel combine improved resistance to stress corrosion cracking, breaking, crevice corrosion and high strength. The austenitic ferritic stainless steel Duplex Steel S32205 Welded Pipes is high corrosion and resistant. Whereas, the round pipes Duplex Steel 2205 pipe are also offered to our customers in various sizes and shapes.
Duplex 2205/s31803 Seamless Welded Pipes are made up of alloys that have both austenitic and ferritic properties. These properties allow these pipes to withstand corrosion. These pipes also have excellent tensile strength. The 2205 Seamless Welded Pipes consist of about 22 percent chromium, 3 percent molybdenum, and 5 to 6 percent nickel.
Duplex 2205/s31803 Seamless Welded Pipes can withstand a temperature up to 572 degrees Fahrenheit. If the pipes are left with more than the mentioned temperature, it might lead to the embrittlement of the pipes. As the chemical composition consists of these elements, they are also very resistant towards corrosion pitting and corrosion cracking which could be beneficial at a temperature ranging from 302 degrees Fahrenheit. There also is a certain amount of ferrite present in this alloy, which enhances the performance of these pipes. Thus, these pipes can be used in environments where they could be subjected to unfavorable conditions. These are also very beneficial in areas where chloride-related stress cracking can occur, as these pipes would work great in those conditions.
The following is a list of some of the most important features and advantages offered by the Duplex 2205:
Great strength: The yield strength of Duplex 2205 is about twice as high as that of typical austenitic stainless steels, making it a good material option for high-stress levels.
The chloride stress corrosion cracking, pitting, and crevice corrosion that Duplex 2205 is susceptible to are significantly reduced.
Excellent weldability: Duplex 2205 may be effectively welded using normal welding processes. This property contributes to the material's excellent corrosion resistance.Duplex 2205 may be welded using normal welding processes with excellent results. This property allows for excellent weldability.
High erosion resistance: Due to its great resistance to erosion and erosion corrosion, Duplex 2205 is suitable for use in hostile situations. This property makes it an excellent choice for construction purposes.
Excellent formability: Duplex 2205 may be readily cold-worked and molded, making it ideal for various applications thanks to its excellent formability.
It is important to note that Duplex 2205 is more costly than other types of stainless steel alloys because of its high percentage of nickel. However, due to its great strength and exceptional corrosion resistance, it is a perfect material for a broad range of applications that place significant demands on the material.
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|Specifications||ASTM A790 / ASME SA790, ASTM A789 / ASME SA A789|
|Seamless Pipes & Tubes Sizes||1 / 2" NB - 8" NB|
|Welded Pipes & Tubes Sizes||6" NB - 24" NB|
|Schedule||SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS|
|Thickness||0.3mm – 50 mm|
|Type||Seamless / ERW / Welded/ Fabricated|
|Form||Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes|
|Length||Single Random, Double Random & Cut Length|
|End||Plain End, Beveled End, Treaded|
Duplex 2205 has good resistance to corrosion, particularly chloride-induced stress corrosion cracking. This property makes it resistant to chloride-induced stress corrosion cracking. In addition to being resistant to pitting and crevice corrosion, it may also be used in a wide range of environments known to be corrosive. A high percentage of chromium and molybdenum in the alloy gives it an outstanding resistance to general corrosion. Meanwhile, the percentage of nickel in the alloy enhances its resistance to stress corrosion cracking.
The corrosion resistance of Duplex 2205 is about equal to the corrosion resistance of alloy 317L, which is superior to the corrosion resistance of typical austenitic stainless steel grades like 304 and 316. Compared to the microstructure of other stainless steel alloys, the duplex structure of Duplex 2205 provides higher resistance to corrosion.
Even though Duplex 2205 has great corrosion resistance, it is nevertheless possible for it to corrode in certain situations. This is especially true when chlorides or other aggressive chemicals are present. The necessary procedures must be followed throughout the selection, manufacture, installation, and maintenance of the alloy in order to achieve the desired result of the alloy's long-term performance in corrosive environments.
Although Duplex 2205 has considerable heat resistance, it does not possess the same level of heat resistance as other stainless steel alloys. It is heat resistant up to around 260 degrees Celsius (500 degrees Fahrenheit); however, its heat resistance will decrease as the temperature rises. The duplex microstructure of duplex 2205 results in lower heat resistance than that of austenitic stainless steel grades such as 304 and 316.
Duplex 2205 is ideal for a wide variety of applications in high-temperature environments. This alloy is often used in equipment like heat exchangers, pressure vessels, and other devices that need great strength and resistance to corrosion.
Notably, the heat resistance of Duplex 2205 may be impacted by other factors, including the presence of impurities, the pace at which the material is heated and cooled, and the kind of thermal treatment that is done to the material. To assure the alloy's long-term performance in high-temperature conditions, one must carefully consider its selection, manufacture, installation, and maintenance techniques.
|Duplex 2205/ S31803||S31803||1.4462|
|Duplex Steel S31803||0.030 max||2.00 max||1.00 max||0.030 max||0.020 max||22 – 23||3 – 3.5||4.50 – 6.50||0.14 – 0.20||63.72 min|
|Duplex Steel S32205||0.030 max||2.00 max||1.00 max||0.030 max||0.020 max||21 – 23||2.50 - 3.50||4.50 – 6.50||0.8 – 0.20||63.54 min|
Duplex 2205 Pipe Weight Chart
|NPS||Outside Diameter||Wall Thickness||Weight||Weight|
|1 1/4″||1.660||42||0.140||3.556||40 STD||3.385||2.273|
|1 1/2″||1.900||48||0.145||3.683||40 STD||4.048||2.718|
|2 1/2″||2.875||73||0.203||5.516||40 STD||8.629||5.793|
Imperial Dimensions of Duplex Stainless Pipe Sizes
Welding : Duplex 2205 has excellent weldability and can be easily welded using common welding techniques, such as Gas Tungsten Arc Welding (GTAW), Gas Metal Arc Welding (GMAW), and Shielded Metal Arc Welding. Duplex 2205 also has a high melting point, making it a good choice for high-temperature applications (SMAW). When welding more significant portions, it is especially important to maintain tight control over the heat input so that cracking does not occur. Following the welding process, welds made with Duplex 2205 should be exposed to a heat treatment to achieve the highest possible level of corrosion resistance.
Heat Treatment: Although heat treating Duplex 2205 to increase its mechanical qualities is not often necessary, it is possible to do so. If heat treatment is necessary, solution annealing needs to be followed by quick cooling. A treatment that relieves stress may also be performed on the alloy; however, to prevent cracking, this procedure must be carefully controlled.
Hot forming: Hot forming should be carried out at temperatures ranging from 1700 degrees Fahrenheit (925 degrees Celsius) to 2250 degrees Fahrenheit (1230 degrees Celsius), with the appropriate heating and cooling rates, in order to achieve the highest possible levels of strength and resistance to corrosion.
Cold-Forming: Standard cold-forming methods, such as cold rolling and drawing, may be used to cold-form Duplex 2205 into the desired shape. In order to avoid cracking to provide the highest possible level of strength and corrosion resistance, cold forming must occur at room temperature or below.
Machinability: Compared to other types of stainless steel alloys, Duplex 2205 is more difficult to process. Its machinability may be improved using appropriate cutting parameters and tool geometries, although caution is still required to prevent cracking.
Fabrication: Duplex 2205 has a high level of fabricability and may be readily worked with using traditional fabrication processes like bending, stamping, and shaping. Fabrication Controlling the manufacturing process properly is essential if one wants to avoid cracking and guarantee maximum strength and corrosion resistance. The great strength of the alloy makes it suited for high-stress applications, yet, it is more difficult to work with than other stainless steel alloys because of its high strength.
|Wall Thickness Of Pipe (Inches)|
|Working Pressure (Psig)|
|Types||Out diameter||Wall thickness||Length|
|NB Sizes (in stock)||1/8” ~ 8”||SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160||Upto 6 Meters|
|Duplex 2205 Seamless Pipe (Custom Sizes)||5.0mm ~ 203.2mm||As per requirement||Upto 6 Meters|
|Duplex 2205 Welded Pipe (in Stock + Custom Sizes)||5.0mm ~ 1219.2mm||1.0 ~ 15.0 mm||Upto 6 Meters|
These material are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthrough the origins of stainless steel lies in a lucky accident. From the smallest part of zipper to the largest building skyscraper, stainless steel is an essential part of modern life.Stainless steel’s strength, resistance to corrosion and low maintenance make it the ideal material for a wide range of applications. It is also has a long life cycle and is 100% recyclable.
We ship our stainless steel metal products in industry leading packaging designed to ensure your order reaches its destination safely. We offer multiple packaging options to meet your specific requirements. Packing is quite important especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put special concern regarding packaging. We pack our goods in numerous ways based on the products. We pack our products in multiple ways.
To specify the various physical and mechanical properties of the finished product, various tests, both destructive and nondestructive, are performed. Metallurgical, hardness, hardenability, tension, ductility, compression, fatigue, impact, wear, corrosion, creep, machinability, radiography, magnetic particle, ultrasonic, and eddy current are some of the major tests that are performed by quality control personnel. Metallurgical testing is used to determine the quality of steel by analyzing the microstructure of a sample under a microscope. A cross section of a sample is first highly polished and then examined at a magnification from 100-500 diameters. The microstructure of steel consists of grains of different compositions and sizes.