Duplex Steel Pipes & Tubes Manufacturer in India
Duplex Steel Pipes & Tubes are high-performance stainless steel products engineered with a dual-phase microstructure of austenite and ferrite, giving them a unique balance of strength and corrosion resistance. This combination makes duplex steel significantly stronger than conventional stainless steels while maintaining excellent toughness and durability in demanding environments.
Our Duplex Steel Pipes & Tubes are available in seamless and welded forms with precise dimensional accuracy, smooth surface finish, and strict quality inspection standards. Each product is tested to ensure consistent performance, long service life, and dependable operation in critical industrial environments.
Duplex Steel Pipes & Tubes, Heat Exchanger Tubes, Boiler Tubes, and Precision Pipe Systems with Standard Dimensions and Tested Quality.
Each Duplex Steel Pipe and Tube is manufactured under controlled production standards with strict inspection for dimensional accuracy, surface quality, and structural integrity. This ensures stable performance even under fluctuating temperatures and high-pressure operating conditions.
Industries We Serve - Duplex Steel Pipes & Tubes
Our Duplex Steel Pipes & Tubes are supplied for critical industrial applications where reliability and safety are essential. These include offshore drilling structures, desalination plants, refinery units, chemical processing systems, and heavy-duty marine installations. The material performs especially well in chloride-heavy conditions where standard stainless steel grades often fail.
Buy Duplex Steel Pipes & Tubes, manufactured as per ASTM A790 / ASTM A928 / ASTM A815 and ASME SA790 / SA928 standards, available in seamless and welded forms with Fast Delivery and Competitive Rates.
With a focus on industrial dependability and consistent supply, We provides Duplex Steel piping solutions designed for long-term service in demanding engineering environments worldwide.
Duplex Steel Pipes & Tubes Chemical Composition
| Grade | C max | Mn max | P max | S max | Si max | Ni | Cr | Mo | N | Cu |
|---|---|---|---|---|---|---|---|---|---|---|
| S31803 | 0.03 | 2.00 | 0.03 | 0.02 | 1.00 | 4.5 to 6.5 | 21.0 to 23.0 | 2.5 to 3.5 | 0.08 to 0.20 | Nil |
| S32205 | 0.03 | 2.00 | 0.03 | 0.02 | 1.00 | 4.5 to 6.5 | 22.0 to 23.0 | 3.0 to 3.5 | 0.14 to 0.20 | Nil |
| S32750 | 0.03 | 1.20 | 0.035 | 0.02 | 0.80 | 6.0 to 8.0 | 24.0 to 26.0 | 3.0 to 5.0 | 0.24 to 0.32 | 0.5 |
| S32760 | 0.05 | 1.00 | 0.03 | 0.01 | 1.00 | 6.0 to 8.0 | 24.0 to 26.0 | 3.0 to 4.0 | 0.20 to 0.30 | 0.50 to 1.00 |
Duplex Steel Pipes & Tubes Specifications
| Parameter | Details |
|---|---|
| Applicable Standards | ASTM A790 / ASME SA790 | ASTM A789 / ASME SA789 | ASTM A928 | ASTM A999 / ASME SA999 |
| Pipe OD Range | Seamless: 6.00 mm to 250 mm | Welded: 5.0 mm to 1219.2 mm |
| Wall Thickness | 0.3 mm to 50 mm |
| Tube OD Range | 6.35 mm to 152 mm |
| Pipe Schedule | SCH 5, SCH 10, SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS |
| Pipe Forms | Round, Square, Rectangular, U-Shape, Coiled, Pancake Coils, Straight |
| Pipe Types | Seamless, Welded, ERW, EFW, CDW, DOM, Fabricated |
| Surface Finish | AP (Annealed & Pickled), 2B, BA, No.1, No.4, Polished, Mirror, Hairline |
| Length | Single Random, Double Random, Fixed Cut-to-Length |
| End Type | Plain End, Beveled End, Threaded |
| Applicable Standards (Additional) | EN, ASTM, ASME, AISI, GB, JIS, DIN |
| Value Added Services | Bending, Pickling, Annealing, Polishing, Machining, Drawing, Expansion |
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If you are looking for Duplex Steel Pipes & Tubes suppliers, Steel Gems is ready to help. Contact us today for more details or to get a quick quote.
Steel Gems is a dependable supplier of Duplex Steel Pipes & Tubes, catering to major industrial regions across India including Mumbai, Pune, Delhi, Chennai, Ahmedabad, and Hyderabad, along with a strong export network spanning UAE, Saudi Arabia, Qatar, Oman, Malaysia, Singapore, Indonesia, and South Africa. These high-performance duplex steel pipes and tubes are engineered for challenging industrial environments where strength, corrosion resistance, and structural reliability must work together under continuous operation.
Duplex Steel Pipes & Tubes Sizes and Weight Chart
| Pipe OD (mm) | Wall Thickness (mm) | Size (in) | Schedule | Weight (kg/m) |
|---|---|---|---|---|
| 13.72 | 1.65 | 1/4″ | 10S | 0.50 |
| 13.72 | 2.24 | 1/4″ | 40S | 0.64 |
| 21.34 | 2.77 | 1/2″ | 40S | 1.29 |
| 21.34 | 3.73 | 1/2″ | 80S | 1.65 |
| 33.40 | 3.38 | 1″ | 40S | 2.54 |
| 33.40 | 4.55 | 1″ | 80S | 3.29 |
| 48.26 | 3.68 | 1 1/2″ | 40S | 4.11 |
| 60.33 | 3.91 | 2″ | 40S | 5.52 |
| 60.33 | 5.54 | 2″ | 80S | 7.60 |
| 88.90 | 5.49 | 3″ | 40S | 11.47 |
| 114.30 | 6.02 | 4″ | 40S | 16.32 |
| 168.28 | 7.11 | 6″ | 40S | 28.69 |
| 219.08 | 8.18 | 8″ | 40S | 43.20 |
| 273.05 | 9.27 | 10″ | 40S | 63.30 |
| 323.85 | 9.53 | 12″ | 40S | 73.82 |