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SA 790 UNS S32750 S32760 Pipe Super Duplex Tubing Duplex stainless steel pipes have good welding performance and are widely used in petrochemical equipment, seawater and wastewater treatment equipment, oil and gas pipelines, paper machinery and other industrial fields. In recent years, duplex stainless steel tubes have also been studied for use in the field of bridge load-bearing structures. Standard: ASTM A789; ASTM A790; EN 10216-5 ect. Material: S32205, S31803, S32304,

ASTM A789 UNS S31803 Duplex Stainless Steel Tube S31803 duplex stainless steel is composed of 21% chromium, 2.5% molybdenum and 4.5% nickel nitrogen alloy. It has high strength, good impact toughness and good overall and local stress corrosion resistance. Main uses of S31803 stainless steel pipe: Neutral chloride environment / oil refining industry / petrochemical and chemical industry / pipeline for chemical industry / oil and natural gas industry / pulp and paper industry /

UNS DesignationCSiMnPSCrNiMoNCumaxmaxmaxmaxmaxS31803 ( F51 )0.03120.030.0221.0 - 23.04.5 - 6.52.5 - 3.50.08 - 0.20-S32205 ( F60 )0.03120.030.0222.0 - 23.04.5 - 6.53.0 - 3.50.14 - 0.20-S32750 ( F53 )0.030.81.20.0350.0224.0 - 26.06.0 - 8.03.0 - 5.00.24 - 0.320.5 maxS32760 ( F55 )0.05110.030.0124.0 - 26.06.0 - 8.03.0 - 4.00.20 - 0.300.50 -1.00 Duplex Stainless Steel Pipe 2205 Steel Grade Seamless Duplex Tube Product Name: Duplex Stainless Steel Pipe 2205 Steel Grade Seamless

A789 UNS S31803 Super Duplex 2507 Oil Gas Stainless Pipe Coiled Tubing Manufacture: Pipes shall be made by the seamless process and shall be either hot finished or cold finished. Application: high pressure pipe line, heat exchanger(chemical processing industry), oil and gas pipeline Size Range: OD:21.3-711mm WT: SCH5/SCH10/SCH40/SCH80/SCH160/XXS(1.65mm-30.75mm) Length: max 12000mm Superior Surface Finish: The traditional annealing: Open furnace---Oxygen atmosphere---form

A790 Duplex Stainless Steel Grades Pipes The duplex material is a kind of ferrite - austenitic duplex stainless steel,which is integrated conducive properties both of ferrite and austenitic and provided with higher intensity as well as tenacity. Delivery Condition: 1.Annealed and Pickled 2.Bright and Annealed 3.Annealed and Pickled+Polishing 4.Bright and Annealed+Polishing Available Size: O.D 6-219.1mm W.T 0.5-12.7mm L 20 meter Max ASTM /ASME A789/SA789 ; ASTM /ASME A790

Super Duplex 2507 Stainless Steel Pipes The duplex material is a kind of ferrite-austenitic duplex stainless steel ,which is integrated conductive properties both of ferrite and austenitic and provided with higher intensity as well as tenacity .on basis of high content of chrome and molybdenum,the duplex material is endowed with all sorts capability of corrosion. UNS Chemical , % C max Mn max P max S max Si max Ni Cr Mo N S31803 0.030 2.00 0.030 0.020 1.00 4.5-6.5 21.0-23.0 2

Torich 2507 Duplex Stainless Steel Tube Tubing Process Flow Round Bar →Peeling →Heating →Piercing →Raw Pipe →Pickling →Straightening → Annealing →Grinding →Cold Drawing/Rolled →Lubricating →End Preparation →Pickling →Cut to length →Testing →Seamless Pipe →Packing →Product Storage Product Name Seamless Duplex Stainless Steel Pipe for Ship building Standard ASTM A789, A312, A790, GB/T13296, GB/T14976 Size OD: 6-530 mm WT: 1-30 mm Length : max 15m Type Seamless and Welded

ASTM 790 S32750 Duplex Stainless Steel Pipe Tube For Fluid And Gas Transport UNS Designation C Si Mn P S Cr Ni Mo N Cu max max max max max S31803 ( F51 ) 0.03 1 2 0.03 0.02 21.0 - 23.0 4.5 - 6.5 2.5 - 3.5 0.08 - 0.20 - S32205 ( F60 ) 0.03 1 2 0.03 0.02 22.0 - 23.0 4.5 - 6.5 3.0 - 3.5 0.14 - 0.20 - S32750 ( F53 ) 0.03 0.8 1.2 0.035 0.02 24.0 - 26.0 6.0 - 8.0 3.0 - 5.0 0.24 - 0.32 0.5 max S32760 ( F55 ) 0.05 1 1 0.03 0.01 24.0 - 26.0 6.0 - 8.0 3.0 - 4.0 0.20 - 0.30 0.50 -1.00 1

ASTM 790 2205 Duplex Stainless Steel Pipe Tube 1 . Outer Diameter : 10.3mm - 1219mm Material Grade : S32205 , S31803 , S32304 , S32750, 2205 , 2507 Etc 2 . Wall Thickness : 1.24mm - 59.54mm 3 . Length : As per customer’s requirement 4 . Standard : ASTM A789 ; ASTM A790 ; EN 10216-5ect . UNS Designation C Si Mn P S Cr Ni Mo N Cu max max max max max S31803 ( F51 ) 0.03 1 2 0.03 0.02 21.0 - 23.0 4.5 - 6.5 2.5 - 3.5 0.08 - 0.20 - S32205 ( F60 ) 0.03 1 2 0.03 0.02 22.0 - 23.0 4.5