MANUFACTURER / EXPORTER / SUPPLIER OF HIGH QUALITY ASTM A 790- UNS S31803 DUPLEX STEEL PIPES
ASTM A815 UNS S31803 DUPLEX STEEL SEAMLESS PIPES SUPPLIER IN INDIA
ASTM A815 DUPLEX STEEL WELDED PIPES / ERW PIPES MANUFACTURER, WNR 1.4462, UNS S31803
Duplex Steel Pipes | WNR 1.4462 Pipes | UNS S31803 Pipes
Sandco Metal Industries specialize in manufacturing of Duplex Steel UNS S31803 Pipes available in various grades and dimensions at affordable cost with no quality compromise. We are manufacturing Duplex Steel UNS S31803 Pipes (seamless, welded, ERW) from past 25 years under supervision of technical experts with their expert guidance and support. Our Organization is ISO-9001:2008 certified with added advantage of products electro polishing, cutting as per customer requirements.
Duplex pipes are used in regions where austenitic stainless steel is not suitable as it is a cheaper alternative for corrosion resistance to various nickel-based alloys. We have a wide range of Duplex Steel UNS S31803 Pipes & Tubes from ½” to 16” for immediate dispatch. The high mechanical strength of duplex grades is a result of the duplex microstructure and the alloying with nitrogen which gives opportunities for reducing both weight and cost. Duplex products have high thermal conductivity, Low coefficient of thermal expansion. Our Duplex Pipes & Tubes are available as seamless , welded and ERW (ERW stands for Electric Resistance Welded) pipes & tubes .
UNS S31803 Duplex Steel Pipes are available at random lengths of upto 6 meter long or 20 feet long in Seamless / Welded / ERW. UNS S31803 Pipes can be offer at random short length or cut length to specific length as per order. We offer complete range in this grade Buttweld fittings- ellbow,tee,bends,reducer,stubend, UNS S31803 Duplex Forged Fittings & UNS S31803 Duplex Flanges
UNS S31803 is duplex steel showing commendable resistance to pitting, stress corrosion, high strength, crevice corrosion and cracking. It can also resists sulfide stress corrosion and chloride environments. This resistance power of duplex steel makes it suitable for services like marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. Duplex steel usage should be limited to temperatures below 600° F.
UNS S31803 Duplex Steel Seamless Pipes
Seamless Pipes are manufactured by using an extruded hollow tube or a drilled solid bar which then undergo various tube reduction processes to meet customers specifications.
UNS S31803 Duplex Steel Welded Pipes
Welded Pipes manufacturing process starts with cold rolled strip of metal, roll formed into tubular shape and seam welded without the use of any filler material which then undergo various cold working techniques like Pilgering, cold drawing etc., until it reaches the exact size, tolerances, and temper in accordance to customer’s specifications.
UNS S31803 Duplex Steel ERW Pipes
ERW Pipes manufacturing process involves spot and seam welding where the sides are trimmed to control the width and the condition the edges for welding. It is then passed through a number of contoured rollers which cold form the stainless steel into a tube. ERW stands for Electric Resistance Welding.
UNS S31803 Duplex Steel Size Range
Duplex Steel UNS S31803 Seamless Pipes / Tubes : 1/2” NB to 8”NB
Duplex Steel UNS S31803 Welded Pipes / Tubes : 6”NB to 24” NB
Seamless Pipes / Tubes Size : 6.00mm OD upto 430 mm OD WT : 0.8mm upto 30mm
Welded Pipes / Tubes Sizes : 6.00 mm OD upto 630 mm OD WT : 0.5mm upto 30mm
UNS S31803 Duplex are available in NB size as well as OD size in all categories Pipes, Tubes & Tubing. We also have Specality in manufacturing and supply of custom sizes S31803 as per requirements. UNS S31803 Duplex cold drawn seamless and welded pipes are available in ex-stock.
Production, Supply, Stock Range of Duplex Steel UNS S31803 Pipes
- Outside Diameter : 6.00 mm OD up to 630 mm OD, Sizes up to 12” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
- Length : Single Random, Double Random & Required Length
- End : Plain End, Beveled End, Treaded
- End Protection : Plastic Caps | Outside Finish: 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
- Thickness Range : 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
- Type : Seamless / ERW / Welded / Fabricated / CDW
- Form : Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes
- Delivery Condition : Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
- Inspection, Test Reports : Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
- Packing : Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
- Specials : Sizes and Specifications other than above can be manufactured on request
Duplex Steel UNS S31803 Pipes Value Added Services
- UNS S31803 Duplex Stainless Steel Pipe Polishing
- UNS S31803 Duplex Stainless Steel Pipe Beveling
- Heat Treatment, Annealing, Pickling of SS UNS S31803 Duplex ERW, Seamless Pipes
- Ultrasonic Testing of SS UNS S31803 Duplex Pipes
- 100% X-Ray Welding for UNS S31803 Duplex Large Diameter Custom Size Stainless Steel Pipes
- Drawing Services
- Special Testing Requirements – Destructive Testing, Non Destructive Testing etc.
Applications of Duplex Steel UNS S31803 Pipes
Our Duplex Steel UNS S31803 Pipes find their applications in --
Pulp and paper industry
Transport & Traffic
Valve & Pumps
Duplex Steel UNS S31803 Pipes Sales Location
We are exporting our Duplex Steel UNS S31803 Pipes & other products to Palestin, Algeria, Italy, Tunisia, Oman, Mauritania, USA, Bangladesh, Lebanon, Canada, Vietnam, INDIA, Sudan, Syria, Morocco, Libya, Jordon, UAE, Egypt, Turkey, Singapore, Malaysia, Iran, Iraq, Saudi Arabia, Bahrain, Qatar, yemen, Kuwait, Argentina etc.