Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.” Material: Duplex Steel ASTM A789 S31803,S32205,S32750, S32760 ASTM A790 S31803,S32205,S32750, S32760
Duplex stainless steel is a very useful metal that is used the world over. It gets its name from the fact that it consists of two different grades of metal. Essentially, Duplex is a Fe-Ni-Cr alloy that has a two-phase ferritic-austenitic stainless-steel microstructure when it is at room temperature. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Duplex steels are characterised by high chromium (19¨C28%) and molybdenum (up to 5%) and lower nickel contents than austenitic stainless steels. The most used duplex stainless steels are the 2205 (22% Chromium, 5% Nickel) and the 2507 (25% Chromium, 7% Nickel); 2507 is known as ¡°super duplex¡± due to its higher resistance to corrosion. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
The advantage of combining ferritic and austenitic grades is that the resultant metal has a metallurgical structure that consists of two phases and therefore benefits from the properties of both microstructures. These properties make duplex steel highly sought after in heavy industries, like oil and gas nuclear and chemical processing. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
The origin of Duplex steels can be traced back to the 1920s, with the first cast being made in Sweden in 1930. However, the popularity of using duplex only started to rise around 30 years ago when steelmaking technology became more advanced. The two types of metals used to make Duplex ¨C austenitic and ferritic ¨C are both fit for purpose in many types of scenarios but they both have weaknesses that prevent them from being used more widely. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Austenitic has a low strength and a low resistance to stress corrosion cracking, while ferritic also has a low strength, poor weldability and poor low temperature toughness. Producing a chemical composition that combines austenitic and ferritic results in a metal that has a higher strength, good weldability, good toughness and resistance to stress corrosion cracking. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Duplex stainless steel has an array of various benefits such as: Strength:Duplex stainless steels have approximately double the strength of regular austenitic or ferritic stainless steels. Toughness and ductility:Duplex stainless steels exceed the toughness and ductility of ferritic grades although they are not as touch as austenitic grades. Corrosion resistance:As with all stainless steels, corrosion resistance depends mostly on the composition of the stainless steel, with chromium, molybdenum and nitrogen content being the most important. Duplex stainless steels are extremely corrosion resistant and even in chloride and sulphide environments, duplex stainless steels exhibit very high resistance to stress corrosion cracking (SCC). SCC is a type of corrosion that takes place when a particular set of factors are present: Tensile stress, corrosive environment and a sufficiently high temperature. Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
2507 (PREN 40-45), with 25-26 Cr and increased Mo and N compared with the 25Cr grades. A super austenitic-ferritic duplex stainless steel with exceptional strength and corrosion resistance ideal for chemical process, petrochemical, and seawater applications. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Duplex Stainless Steel offers excellent resistance to corrosion along with very high mechanical strength, which allows for lighter fabrication and greater design flexibility. With this high corrosion resistance, Duplex Stainless Steel provides more uptime than Carbon Steel or conventional Stainless Steel. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
ASTM A789 / ASME SA789 covers grades of average wall thickness, or, if specified on the order, minimum wall thickness, of stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are suscep- tible to embrittlement if used for prolonged periods at elevated temperatures. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
With its myriad applications, the process industries are always in pursuit of highly reliable materials. Duplex Stainless Steel Piping is widely endorsed by plant operations management and maintenance specialists who appreciate their toughness and ability to withstand the very aggressive fluids inherent in the process. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
The machinability of 2205 steel pipe is low due to its high strength. The cutting speeds are almost 20% lower than that of grade 304. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Duplex stainless steels have a mixed microstructure of austenite and ferrite, the aim being to produce a 50/50 mix, although, in commercial alloys, the mix may be 40/60 respectively. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Some of the typical applications of duplex steel grade 2205 are oil and gas exploration, processing equipment, transport, storage and chemical process, high chloride and marine environments, paper machines, liquor tanks, pulp, and paper digesters.
Duplex pipes are stainless pipes containing the high amount of chromium and minimum amount of nickel. Duplex pipes provide great strength and resistance to corrosive environments. Duplex pipes are used in desalination plants, heat exchangers, and marine processes. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Some steels also contain the alloy elements such as Mo, Cu, Nb, Ti and N, etc. Compared with ferritic stainless, duplex stainless steel has higher plasticity, ductility and better intergranular corrosion resistance and weldability. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Duplex stainless steel, famous for its excellent combination of good mechanical properties and high corrosion resistance, is widely used in the industrial fields, such as the production of seawater heat exchangers and the chemical containers for use in the high-concentration chloride environments. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Alloy 2205 UNS S32305/S31803 is a 22% chromium, 3% molybdenum, 5-6% nickel, nitrogen alloyed Duplex Stainless Steel Pipe with high general, localized, and stress corrosion resistance properties in addition to high strength and excellent impact toughness. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Super Duplex Stainless Steel is known to have better stress corrosion, cracking resistance and mechanical properties than any other type of steel. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
2101 is a low nickel, lean duplex stainless steel possessing both superior strength and chloride stress-corrosion cracking resistance when compared to 300 series stainless steel.
The Benefits of Duplex Stainless Steel are improved Strength, because many duplex grades are as much as two-times stronger than austenitic and ferritic stainless steel grades, high Toughness and Ductility, high Corrosion Resistance, and Cost Effectiveness. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
2205 is the most widely used duplex (ferritic/austenitic) stainless steel grade. It finds applications due to both excellent corrosion resistance and high strength. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
A ferrous metal is one that contains iron. Therefore, stainless steels are ferrous metals as their main constituent is iron, even in the very highly alloyed grades, such as super duplex stainless steels, or super austenitic stainless steels. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
On average, duplex stainless steel is about twice as strong as either ferritic or austenitic stainless steels. High toughness and ductility. Duplex stainless steel can be more easily formed under pressure than ferritic grades and also have superior toughness.
The Duplex Steel Pipe gets its name from the dual nature present in the microstructure of the alloy. Duplex Stainless Steel Seamless Pipe have good mechanical characteristics and can be used in an as welded condition. Considered to be superior in comparison to austenitic alloys ASTM A312 TP304 or ASTM A312 TP316, the Seamless Duplex Pipe offers much better resistance to corrosion. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Duplex stainless steel offers excellent resistance to corrosion and very high mechanical strength. The high corrosion resistance of duplex stainless steel ensures significantly more uptime than carbon steels and conventional stainless steels, while the mechanical strength allows for lighter constructions, a more compact system design and less welding. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Duplex variety stainless steels work well in those applications which contain a high concentration of chlorine. Chloride ions, which are normally detrimental to conventional stainless steels, do not cause any damage to the much stronger Duplex Stainless Steel Pipe. The chemistry of this steel ensures better performance with higher mechanical properties in comparison to austenitic stainless steel pipes. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Designers may have the option to reduce the wall thickness of the duplex 2205 welded pipe, because of its high yield strength. The yield strength of this material is almost two times that of the usually used austenitic stainless steel grade. Unlike austenitic steel pipe, the Duplex 2205 Tube may at times exhibit magnetic behavior because the microstructure of its alloy contains about 50% ferrite. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Cold drawn and cold rolled is the primarily prepare for 2205 Duplex Stainless Steel Pipe. Due to the material characteristic of high quality and hardness, duplex steel is more difficult to process than austenitic steel. It is very easy to damage, particularly for small thickness and large diameter pipes, it incorporates a long and hard-working methods. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
Duplex 2205 stainless steel is resistant to chlorides and H2S. Is a problem solver in most industry segments. Duplex 2205 is utilized in heat exchangers and piping in oil and gas, oil refinery, chemical, and petrochemical industry. Type “Seamless Pipe Seamless Tube Welded Pipe Welded Tube SAW LSAW ERW EFW Beveled End, Plain End” Size “OD: 1/2″” ~48″” Thickness: SCH5~SCHXXS Length :As per your requirement.”
