Duplex Steel Pipe Fittings
DUPLEX PIPE FITTINGS, UNS S31803 | 2205 FLANGES MANUFACTURER, EXPORTER IN INDIA
Reliable Pipes and Tubes Ltd. is a leading manufacturer, exporter and supplier of buttweld seamless and welded duplex fittings, duplex flanges and duplex pipes. RELIABLE PIPES & TUBES LTD. offers a complete range of duplex stainless steel pipe fittings such as duplex reducer, duplex elbow, duplex tee, duplex cross, duplex stub ends and duplex pipe bends. We are one of the few manufacturers in India who can weld, bend and form duplex stainless steel pipe fittings in various sizes and dimensions.
With a PREN of around 35, duplex stainless steels are generally more corrosion resistant than 304 (PREN: 19) and 316 stainless steels (PREN: 26), particularly stress corrosion cracking.
DUPLEX 2205 SEAMLESS Fittings, DUPLEX STAINLESS STEEL PIPE FITTINGS, DUPLEX FLANGES Exporter
 Duplex Steel Pipe Fittings |
 Duplex Steel Pipe Flanges |
 Duplex Steel Forged Fittings |
DUPLEX PIPE BENDS, DUPLEX ELBOW, DUPLEX TEE, DUPLEX REDUCER, DUPLEX STUB END, Duplex Socket weld & Threaded Fittings Supplier in India.
Duplex flanges can be manufactured and supplied in a variety of sizes and pressure ratings to meet project specific requirements of our customers. Our duplex pipe and fitting products are widely supplied to many industries including boiler manufacturing, brewing tanks and desalination plants.
Duplex stainless steel pipes and duplex fittings are generally lower in cost, as lower percentage of alloying element is used in the manufacture of duplex stainless steel. The yield strength of duplex stainless steel products is higher compared to austenitic stainless steel products, as a result of which users can purchase relatively lower thickness duplex pipes and duplex fittings.
RELIABLE PIPES & TUBES LTD. also stocks and supplies a complete range of duplex seamless pipes to complement our existing production range of duplex buttweld fittings and flanges. Duplex pipes can be supplied in cut to length sizes and also machined or fabricated to meet your piping requirements.
| Stainless Steel | Tradename | UNS no. | Werkstoff No. | Density (g/cm3) |
| Duplex | F51 / 2205, F60 | S31803 / S32205 | 1.4462 | 7.805 |
Duplex Pipe Fittings Production Range
| Specification | ASTM A 815, ASME SA 815, ASTM A 182, ASME SA 182 |
| Type | Seamless / Welded / Fabricated |
| Range | ½”NB to 48″NB in Sch 10s, 40s, 80s, 160s, XXS. |
| Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
Buttweld Duplex Pipe Fittings
Seamless/ Welded 100% Radiography Tested
| Products | Size | |
| Duplex Steel Elbows – Long Radius | Duplex Steel Stub Ends | Sizes 1/2″ – 48″ |
| Duplex Steel Elbows – Short Radius | Duplex Steel Crosses | |
| Duplex Steel Reducing Elbows | Duplex Steel Reducing Crosses | |
| Duplex Steel 45° Elbows | Duplex Steel 180° LR Return Bends | |
| Duplex Steel Tees | Duplex Steel 180° SR Return Bends | |
| Duplex Equal Tees | Duplex Steel Pipe Bends / Piggable Bends | |
| Duplex Steel Reducers | Duplex Steel Couplings | |
| Duplex Steel Concentric Reducers | Duplex Steel Pipe Nipples | |
| Duplex Steel Eccentric Reducers | Duplex Steel Forged/Plate Cut Rings | |
| Duplex Steel 3D Elbow | Duplex Steel End Caps | |
| Duplex Steel 5D Elbow | Duplex Steel Forged / Plate Circles | |
High Pressure Forged Duplex Steel Pipe Fittings
Threaded and Socket Weld Pipe Fittings
| Products | Size | |
| Duplex Steel 90° Elbows | Duplex Steel Couplings | Sizes 1/8″ – 4″ Pressure Ratings – 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS |
| Duplex Steel 45° Elbows | Duplex Steel Reducers | |
| Duplex Steel Street Elbows | Duplex Steel Inserts | |
| Duplex Steel Tees | Duplex Steel Caps | |
| Duplex Steel Crosses | Duplex Steel Unions | |
Duplex Steel Flanges
Forged and Plate Flanges
| Specification | ASTM A182 / ASME SA182 F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61. |
| Grade | UNS S31803, S32205, S2205, S32550, S32750, S32760. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size | ½” to 24″ |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Product | Size | |
| Duplex Steel Slip-On Flanges | Duplex Steel Threaded Flanges | 1/8″ – 36″ Raised Face or Flat Face |
| Duplex Steel Weld Neck Flanges | Duplex Steel Socket Weld Flanges | |
| Duplex Steel Blind Flanges | Duplex Steel Reducing Flanges | |
| Duplex Steel Lap Joint Flanges | Duplex Steel Plate Flanges | |
