DUPLEX STEEL PIPE/TUBE
DUPLEX STEEL PIPE/TUBE
As a professional duplex stainless steel flangesmanufacturer in China, Yuhong Group provides quality super duplex tubing solutions. The microstructure of duplex stainless steel pipe for sale is approximately 50% ferrite (body-centered cubic structure) and 50% austenite (face-centered cubic structure) crystal structure. The two phases coexist as a stable mixture, but this is different from two-phase alloys, where one of the two phases appears as a precipitate. The alloying elements in duplex stainless steel tubes are ferritic (eg chromium, silicon, molybdenum) or austenitic (eg carbon, nickel, nitrogen), which means that they favor the formation of the ferritic and austenitic phases, respectively.
DUPLEX STAINLESS STEEL PIPE/TUBE FOR SALE
Duplex Stainless Steel Pipe/Tube for Sale
Duplex Steel Pipe/Tube
Duplex stainless steels are part of the stainless steel family. Duplex( austenitic-ferritic) means their metallurgical structure consists of two phases. Compare with the normal 304 316 stainless steel, they can provide better corrosion resistance, particularly chloride stress corrosion and chloride pitting corrosion, and higher strength. And the duplex SS pipe has higher Chromium 20%-28%, and lower nickel, up to 9% and 0.05-0.50% than austenitic stainless steel, which gives good cost benefits.
ASTM A789/ASME SA789 Duplex Steel Pipe/Tube
Duplex Stainless Steel Pipe Grades
The most widely used is ASTM ASTM (American Society for Testing and Materials International), and ASME(American Society of Mechanical Engineers). And the general standard for the duplex stainless steel seamless or welded tube or pipe can be ASTM A789/ASME SA789, ASTM A790/ASME SA790, ASTM A928/ASME SA928. They give very detailed requirements on the material, test, and others.
DUPLEX STAINLESS STEEL APPLICATIONS
Pipe duplex is known for its excellent combination of good mechanical properties and high corrosion resistance. The wide range of advantages means that duplex SS pipe can be used in many different applications: for example, chemical processing, transport, and storage in the industrial sector, such as seawater heat exchange for high chloride environments and production of chemical containers. The SS duplex pipe can also be applied to pipelines for oil and gas production and transportation, such as oil and gas exploration and offshore drilling platforms.
DUPLEX STEEL PROPERTIES
At elevated temperatures, mechanical properties such as strength and toughness, as well as corrosion resistance, of dual-phase steels are reduced. This phenomenon is called embrittlement. The worst temperature at which embrittlement occurs is 475 °C; however, the formation of α' phases can begin to occur at temperatures as low as 300 °C, which limits the maximum service temperature for dual-phase steels.
Typical duplex pipe material has higher yield strengths than typical martensitic, austenitic, and ferritic stainless steels. However, since intermetallics begin to precipitate above 300 °C and become brittle near cryogenic temperatures, their operating temperature range is narrow.
DUPLEX PIPING SPECIFICATIONS
Specification |
Material of Duplex Available |
ASTM A790/ASME SA790 |
UNS S31803, S32205,S32750,S32760,S32304,S32900 |
For Seamless and Welded Pipe |
|
ASTM A789/ASME SA789 |
UNS S31803, S32205,S32750,S32760,S32304,S32900 |
For Seamless and Welded Tube, U-Bending Available |
|
ASTM A928/ASME SA928 |
UNS S31803, S32205,S32750,S32760,S32304 |
For Electric Fusion Welded with Addition of Fill Metal |
WHY CHOOSE YUHONG GROUP AS YOUR DUPLEX STAINLESS STEEL PIPE MANUFACTURER?
Yuhong Group has focused on duplex stainless steel pipe for more than 15 years. Our duplex stainless steel tubes have been exported to more than 55 countries in the world. Over 90% of our clients will place repeat orders because of our good quality and service. For YUHONG, quality is the very first importance. As a reliablenickel alloy pipe supplier, we always aim to provide the best quality product to our clients. If you are looking for good quality duplex stainless steel seamless or welded pipe. YUHONG will be your best choice. YUHONG provides varied duplex ss pipe tubechoices with different grades and specifications. From 6.35mm-219m in seamless type, and 6.35mm-3600mm in welded type. Explore our selection, including specialized options like a789 tubing, to find the perfect solution for your requirements. Believe you can always find the suitable one for your project. Customization is also available. YUHONG is always your good partner in China.
在线联系供应商
Other supplier products
HASTELLOY FLANGE | As Hastelloy is a corrosion-resistant nickel alloy, the Hastelloy flanges are widely used in the oil and gas industry. HASTELLOY FLANGE PROVIDED... | |
DUPLEX STEEL FLANGE | Duplex stainless steel flangecontain alloying elements such as Mo, Cu, Nb, Ti, and N. DUPLEX STEEL FLANGE PROVIDED BY YUHONG Duplex stainless s... | |
ASTM A249/ASME SA249 STAINLESS STEEL TUBE | ASTM A249/ASME SA249stainless steel tube covers nominal wall thicknesses welded and heavily cold-worked welded pipes made of the following material... | |
ASTM B338/ ASME SB338 TITANIUM ALLOY STEEL TUBE | ASTM B338/ ASME SB338Titanium Tube (Ti Tube) has a superior strength-to-weight ratio and corrosion resistance is one of the common titanium product... | |
ASTM A269/ASME SA269 STAINLESS STEEL TUBE | ASTM A269/ASME SA269stainless steel tube covers the nominal wall thickness grades of stainless steel pipe specified in the standard for general cor... |
Same products
SCC L8013Cr 2-7/8" EUE Tubing Coupling SSC | 卖方: Tianjin Wenxin Energy Technology Co.,LTD | Introduction Copper plated coupling are short lengths of pipe used to connect 2 joints of casing... | |
Special Clearance 1.9" N80 NUE Tubing Coupling | 卖方: Tianjin Wenxin Energy Technology Co.,LTD | Introduction NUE Thread Couplings are short lengths of pipe used to connect 2 joints of tubing.T... | |
DS55/HT55/HST55 4145h Crossover | 卖方: Tianjin Wenxin Energy Technology Co.,LTD | Introduction Crossover is a tubing or casing for connecting two different sizes, threads and wei... | |
X-over 3-7/8"CAS 2Cr13 Crossover | 卖方: Tianjin Wenxin Energy Technology Co.,LTD | Introduction Crossover is a tubing or casing for connecting two different sizes, threads and wei... | |
JFE BEAR Thread Type Super 13Cr Crossover | 卖方: Tianjin Wenxin Energy Technology Co.,LTD | Introduction Crossover is a tubing or casing for connecting two different sizes, threads and wei... |