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Duplex Steel Pipes Specification
| Duplex Pipes Specifications | ASTM A790 / ASME SA790 |
|---|---|
| Dimensional specification | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
| ASTM A790 Duplex Seamless Pipe Size | 1 / 2" NB - 16" NB |
| ASTM A790 Duplex Welded Pipe Size | 1 / 2" NB - 24" NB |
| ASTM A790 Duplex EFW Pipe 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 Alloy Tubes available Ex-stock |
| Duplex Pipes Manufacturing Shapes | Hydraulic, Round, Rectangle, Square, Hex, Honed |
| Duplex Pipe Manufacturing Techniques | Seamless / Welded / ERW / Fabricated / CDW / 100% X Ray Welded |
| Duplex Steel Pipe Schedule Thickness Range | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Duplex Pipes End Types | Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends) |
| Delivery Condition of Duplex Pipe | 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 A 790 Duplex 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 Pipes | Packed in Wooden Boxes, Plastic Bags, Alloy Strips Bundled, or as per Customers Requests |
| Specials | Sizes and Specifications other than above can be on request |
Outside Diameter, OD (in mm) & Wall Thickness, WT (in mm) of Duplex Steel Pipes
| Product Description | Outside Diamter, OD (in mm) | Wall Thickness, WT (in mm)> |
|---|---|---|
| Duplex Steel Round Pipe | 6mm – 630mm | 0.5mm-30mm |
| Duplex Steel Square Pipe | 12.7mm* 12.7mm to 300mm* 300mm | 0.5mm-30mm |
| Duplex Steel Rectangular Pipe | 10*20mm to 100*200mm | 0.5mm-30mm |
| Duplex Steel Colour Coated Pipe | 6mm to 630mm | 0.5mm-30mm |
| Duplex Steel Ornamental Pipes | 12.7mm to 76.2mm | 0.5mm-2.0mm |
| Duplex Steel Electropolished Pipes | 12.7mm to 250mm | 0.5mm-30mm |
| Duplex Steel Slot Round Pipe | 12.7mm to 76.2mm | 0.5mm-2.0mm |
| Duplex Steel Triangle Pipe | 16mm to 85mm | 0.5mm-3.0mm |
| Duplex Steel Hexagonal Pipes | 13mm to 85mm | 0.5mm-2.0mm |
| Thin-Wall Duplex Steel Pipes | 22mm*0.7mm to 108mm*2.0mm | 0.5mm-2.0mm |
| Inner/Outside Polished Duplex Steel Pipes | 12.5mm to 203.2mm | 1.0mm – 5mm |
| Duplex Steel Seamless Pipes | 6mm to 430mm | 0.8mm – 30mm |
ASTM A790 Duplex Steel Pipes Forms & Availability
| Products | Size | |
| ASTM A790 Duplex Square Pipe | ASTM A790 Duplex Dairy Pipe | Sizes 1/8″NB TO 30″NB IN |
| ASTM A790 Duplex Exhaust Pipe | ASTM A790 Duplex Steel Flexible Pipe | |
| ASTM A790 Duplex Steel Hollow Pipe | ASTM A790 Duplex Rectangular Pipe | |
| ASTM A790 Duplex Steel Round Pipe | ASTM A790 Duplex Schedule 40 Pipe | |
| ASTM A790 Duplex Steel Sch 10 Pipe | ASTM A790 Duplex Schedule 5 Pipe | |
| ASTM A790 Duplex Schedule 80 Pipe | ASTM A790 Alloy Threaded Pipe | |
| ASTM A790 Duplex Steel Seamless Pipe | ASTM A790 Duplex EFW Pipes | |
| ASTM A790 Duplex Steel EP Pipes | ASTM A790 Duplex Electric Resistance Welded Pipe | |
| ASTM A790 Duplex Electric Fusion Welded Pipes | ASTM A790 Duplex Structural Alloy Pipe | |
Application Industries
| Off-Shore Oil Drilling Companies | Power Generation |
| Petrochemicals | Gas Processing |
| Specialty Chemicals | Pharmaceuticals |
| Pharmaceutical Equipment | Chemical Equipment |
| Sea Water Equipment | Heat Exchangers |
| Condensers | Pulp and Paper Industry |