| Specifications | Astm, Asme, Din, Nfa, Jis |
|---|---|
| Thickness | 4.0mm, 100mm |
| Pipes Size | 1/8” Nb, 24” Nb, 1/4” Od, 24” Od Sizes |
| Tubes Size | 1/2″ Od, 8″ Od |
| Length: | Single Random, Double Random, Required Length, Cut Length, Fix Length |
| End | Plain End, Beveled End, Threaded |
Duplex seamless pipes manufactured in India for oil gas offshore chemical processing and high strength industrial piping systems
Sagar Steel Corporation is a leading Duplex Seamless Pipe Manufacturer in India, which provides pipes, which are designed to be strong, resist corrosion and reliable over time, in extreme industry conditions. Duplex seamless pipes are manufactured with an austenitic-ferritic stainless steel structure with a balanced composition that gives better mechanical strength and resistance to stress corrosion cracking than the traditional stainless steel pipes.
Duplex seamless pipes find application in oil and gas processing, offshore systems, chemical plants, desalination units, heat exchangers and pressure piping systems. They are easily made, so they have an even and strong wall thickness and have the capability of withstanding high pressure as well as resisting corrosion caused by chloride, rendering them compatible with marine and chemical-hostile conditions. These pipes come in a wide range of diameter, thickness of the wall, schedules and lengths to suit both standard and custom project requirements.
Duplex Stainless Steel Seamless Pipes – Material & Grade Table
| Common Name | ASTM / UNS Grade | Typical Composition (Main Elements) | Typical Applications | Key Properties |
|---|---|---|---|---|
| Duplex 2205 Seamless Pipe | ASTM A790 UNS S32205 / S31803 | Cr 22%, Ni 5–6%, Mo 3%, N | Oil & gas, offshore, pressure piping | High strength, excellent stress corrosion resistance |
| Duplex 2304 Seamless Pipe | ASTM A790 UNS S32304 | Cr 23%, Ni 4%, Mo low | Structural & chemical processing | Good corrosion resistance, cost-effective |
| Duplex 2507 Seamless Pipe | ASTM A790 UNS S32750 | Cr 25%, Ni 7%, Mo 4%, N | Offshore, seawater, desalination | Very high strength, superior pitting & crevice resistance |
| Super Duplex 32760 Pipe | ASTM A790 UNS S32760 | Cr 25%, Ni 7%, Mo 3.5%, W, Cu | Severe marine & chemical environments | Excellent corrosion resistance, high PREN value |
Duplex Stainless Steel Seamless Pipes – Sizes, Types & Availability Table
| Pipe Type | Outside Diameter | Length | Schedule / Thickness | Minimum Quantity |
|---|---|---|---|---|
| Duplex 2205 Seamless Pipes | 1/2" NB – 24" NB | SRL / DRL / Cut | SCH 10 – SCH XXS | 200 Pcs |
| Duplex 2304 Seamless Pipes | 1/2" NB – 20" NB | SRL / DRL / Cut | SCH 10 – SCH XXS | 200 Pcs |
| Super Duplex 2507 Seamless Pipes | 1/2" NB – 24" NB | SRL / DRL / Cut | SCH 10 – SCH XXS | 200 Pcs |
| Super Duplex 32760 Seamless Pipes | 1/2" NB – 24" NB | SRL / DRL / Cut | SCH 10 – SCH XXS | 200 Pcs |
| Custom Duplex Seamless Pipes | As Required | As Required | As Required | 200 Pcs |
The salient properties of Duplex seamless pipes are as follows.
- Strongness and low wall thickness.
- Very good pitting and stress corrosion cracking resistance.
- Smooth construction to provide homogenous pressure resistance.
- Welds well and fabricates well.
- Prolonged operation under severe conditions.
These characteristics make duplex smooth pipes a reliable choice in terms of high-pressure and corrosion critical systems.
In addition to duplex seamless pipes, we also provide Stainless Steel 904L Pipes, Monel 400 / K500 Seamless Pipes, and Carbon Steel Seamless Pipes, allowing buyers to find numerous piping materials under a single reputable manufacturer via our B2B portal.
Type of Sub-products

S31803 Duplex Seamless Pipe S31803 Duplex Seamless Pipe
Known for high strength and superior resistance to pitting and chloride environments.

S32205 Duplex Seamless Pipe S32205 Duplex Seamless Pipe
Designed for offshore platforms, pipelines, and chemical handling systems with enhanced stress corrosion resistance.
