We manufacturer, Supplier & Exporter of Duplex UNS S31803 Pipes and Tubes, which gives better guaranteed corrosion resistance. Our Duplex S31803 Seamless Pipes display properties characteristic of both austenitic and Ferritic stainless steels. Duplex Stainless Steel UNS S31803 Tubes can be supplied in made to order length sizes and as well as fabricated and machined to meet up your requirements in piping system. ASTM A790/ A789 UNS S31803 Duplex Steel Seamless Pipes & Tubes are used mainly in the building, plumbing and chemical industries.
Our Duplex S31803 EFW Pipes are typically delivered annealed, with yield strengths in excess of 65 KSI (450 Mpa). They have higher chromium (19% to 32%), molybdenum (up to 5%), and lower nickel concentrations than austenitic stainless steels.
S31803 Pipes & Tubes Specifications | ASTM A790, A789 / ASME SA790, SA789 |
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Dimensional specification | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
ASTM A790 S31803 Seamless Pipes & Tubes Size | 1 / 2" NB - 16" NB |
ASTM A790 S31803 Welded Pipes & Tubes Size | 1 / 2" NB - 24" NB |
ASTM A790 S31803 EFW Pipes & Tubes Size | 6" NB - 24" NB |
Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
Duplex Steel S31803 Pipes & Tubes Manufacturing Shapes | Hydraulic, Round, Rectangle, Square, Hex, Honed |
Duplex Steel S31803 Pipes & Tubes Manufacturing Techniques | Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded |
Duplex Steel S31803 Pipes & Tubes Schedule Thickness Range | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
Duplex Steel S31803 Pipes & Tubes End Types |
Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends) |
Delivery Condition of Duplex Steel S31803 Pipes & Tubes | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
Surface Finish | No.1, No.4, No.8 Mirror Finish, 2B |
Value Added Services | Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing |
Inspection and Test Reports | EN 10204 3.1, Mill Test Certificates, Chemical Reports, PMI Test Reports, Mechanical Reports, Third Party Inspection, NABL Approved Lab, Visual Inspection, Destructive Test and Non Destructive Test Reports |
Marking | Specification Grade Nominal Pipe Sizes Pipe Schedule or Wall Thickness Manufacturing Method (Seamless / Welded) Heat Number Manufacturer’s Name or Custom Logo - on request Marked Pipe Sample: ANSI B36.19 ASTM A790 S31803/S32205 12" NB SCH 40S SEAMLESS HEAT NO. XXXX |
Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Duplex Steel Pipes, Finish as per customer Requirements |
Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
Packing of Duplex Steel S31803 Pipes | Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests |
Specials | Sizes and Specifications other than above can be on request |
STANDARD | WERKSTOFF NR. | UNS |
Duplex S31803 | 1.4462 | S31803 |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
Duplex S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |