Payment & Shipping Terms:
|Product Name:||Duplex Steel Pipe||Size:||6mm-325mm|
|Thickness:||1mm-10mm||Grade:||S31803 S32205 S32750 904L|
|Delivery Condition:||Annealing||Application:||Chemical,petroleum, Medicine, Food, Nuclear Power, Boiler, Gas, Machinery, Ship Building|
904L Steel Tube , Super Austenitic Stainless Steel Tube , UNS N08904 Steel Tube
Dual phase stainless steel tube has good welding performance, compared with ferritic stainless steel and austenitic stainless steel, it is not like the welding heat affected zone of ferritic stainless steel, due to the serious grain coarsening and the toughness of the plastic is greatly reduced.
Because of its special advantages, duplex stainless steel has been widely used in petrochemical equipment, seawater and wastewater treatment equipment, oil transportation pipeline, paper machinery and other industrial fields. In recent years, it has been used in the field of bridge bearing structure, which has good prospects for development.
Duplex stainless steel is in its solid quenched microstructure of the ferrite phase and austenitic phase of each half, generally at least phase content may be up to 30%.
ASTM, AISI, DIN, EN, GB, JIS
|Place of Origin:||
Seamless, Seamless / SML
Heat exchanger,Oil & Chemical Industry,Mechanic Industry
PED, ISO9001, ISO14001, DNV
astm a789 pipe dupex s31803 s32205 s32750 stainless steel pipe
Solution Annealing,Bright Annealing
In bundles, plywood cases, wooden cases with water-proof package, etc.
PE/Plain Ends, BE/Beveled Ends
Due to the characteristics of the two-phase structure, the DSS has the advantages of ferritic stainless steel and austenitic stainless steel by properly controlling the chemical composition and the heat treatment process.
Duplex stainless steel, duplex stainless steel (DSS), refers to the ferrite and austenite each account for about 50%, general relatively less content also need at least 30% stainless steel. In the case of lower Cr content, C content in 18%~28%, Ni content in 3%~10%. Some steel also contains Mo, Cu, Nb, Ti, N and other alloy elements.
|Name||seamless stainless steel pipe and tube|
ASME SA213/ASTM A213,ASTM A269,ASME SA312/ASTM A312,
,JIS G3455,JIS G3459 etc.
|Technique||Cold Finished (Cold Drawing and Cold Rolling), Hot Finished (Hot Extrusion).|
|Ends||PE/Plain Ends, BE/Beveled Ends|
Pickled,Passivation,Inside & Outside Mechanical Polishing, BA,
|Heat Treatment Condition||
Solution Annealing and water rapid quenched, Bright Annealing,
Stess Relieving Heat Treatment for U tubes
Eddy Current Test, Hydrostatic Test, UT,Penetrant Test,Air underwater
Gas and Fluid Transportation;Mechanical Pipline;Engineering Projects;
ISO9001:2008,PED/97/23/EC and China Pressure Vessel Pipeline
Manufacturing License(A1 & A2)
|Package||In bundles, plywood cases, wooden cases with water-proof package, etc.|
|Product Origin||Jiangsu, China(mainland).|
|Trade Terms||FOB, CIF, CFR, DDP, EXW, etc.|
|Payment Terms||T/T, L/C|
|Nearest Port||Shanghai, Tianjin|
Domestic Market, North America, Western Europe, South America,
Eastern Asia etc.
Used in industries as chemical engineering, petroleum, medicine, food, energy, nuclear power,
aerospace, environmental protection, boiler, gas, war industry, machinery, ship building and so on.
Our factory is near to raw material market and high-speed way, the producing cost is low.
Our factory have long history for producing Duplex Steel Pipe, both producing and testing machine is
advanced and perfect.
Our factory was certificated by BV/ISO/LR/RINA/CCS/GL/ABS/DNV, which can improve the quality.
We participated in many famous projects with our pipes.
Duplex Steel Pipe