Duplex and Super Duplex Steel Pipes and Tubes
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Duplex and super duplex steel pipes and tubes come with great corrosion resistance and high mechanical strength in harsh conditions. This steel is a blend of ferritic and austenitic microstructures that make this steel superior in pitting and corrosion strength. Aashish Metals provides different types of Duplex Steel S31803/S32205 seamless, welded, ERW and fabricated material for pipes and tubes. Each of these materials is made with the global level standards ASTM A789, ASTM A790, ANSI B36.19 and DIN. These guarantee the long life span and safety of the structure.
Complete Range of Duplex and Super Duplex Steel Pipes and Tubes
Aashish Metals offers a wide selection suitable for high pressure, high temperature, and corrosive operating conditions.
Duplex Steel S31803 and S32205 Pipes and Tubes
The Duplex 2205 pipes and tubes of our company have balanced chemical composition, high strength and enhanced resistance to aggressive media. It comes in seamless, welded, ERW, and fabricated. Discover product specification of Duplex Steel S31803 and S32205 Pipes and Tubes.
- Super Duplex Steel S32750 and S32760 Pipes and Tubes
- Key Advantages of Duplex and Super Duplex Pipes and Tubes
- Standards and Specifications of Duplex and Super Duplex Steel Pipes for Pipes and Tubes
- Types of Duplex & Super Duplex Steel Pipes and Tubes
- International Equivalent Grades for Duplex and Super Duplex Pipes and Tubes
- Duplex and Super Duplex Steel Pipes and Tubes Chemical Composition
- Duplex and Super Duplex Steel Pipes and Tubes Mechanical Properties
- Applications of Duplex and Super Duplex Steel Pipes and Tubes
- Frequently asked questions for Duplex and Super Duplex for Pipes and Tubes
Super Duplex Steel S32750 and S32760 Pipes and Tubes
Super Duplex grades such as UNS S32750 and UNS S32760 offer even higher resistance to pitting and crevice corrosion than Duplex grades and are ideal for offshore, marine, and chemical industries.
Explore full product details on Super Duplex Steel S32750 and S32760 Pipes and Tubes.
Key Advantages of Duplex and Super Duplex Pipes and Tubes
- High resistance to pitting and crevice corrosion
- Excellent stress corrosion cracking resistance
- Superior strength compared to standard stainless steel
- Lower nickel content makes them more cost efficient than austenitic grades
- Excellent performance in chloride rich environments
- High weldability and structural stability
- Long service life in offshore and marine systems
Standards and Specifications of Duplex and Super Duplex Steel Pipes for Pipes and Tubes
| Specification Item | Details |
|---|---|
| Pipe/Tube Specifications | ASTM A790, A789 / ASME SA790, SA789 |
| Dimensions | ANSI B36.19, ANSI B36.10 |
| Pipe 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 |
| Tube Outside Diameter | 1/8″ OD TO 2″ OD, 3 mm OD TO 38 mm OD |
| Thickness Range | 1 mm TO 3 mm, 0.028″ TO 0.156″, SCH 5, SCH 10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS |
| Type | Seamless / ERW / Welded / Capillary Tubes |
| Form | Round Tube, Square Tube, Rectangular Tube |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Threaded |
| End Protection | Plastic Caps |
| Finish | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| External Coating | 3LPE / 3LPP / FBE / DFBE / PP |
Duplex and Super Duplex Steel Pipes for Pipes and Tubes
Types of Duplex & Super Duplex Steel Pipes and Tubes
Nuts
Welded Pipes
Seamless Tubes
Welded Tubes
ERW Pipes / Tubes
ERF Pipes
International Equivalent Grades for Duplex and Super Duplex Pipes and Tubes
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Duplex 2205 | 1.4462 | S31803 / S32205 |
| Super Duplex 2750 | 1.4410 | S32750 / S32760 |
Duplex and Super Duplex Steel Pipes and Tubes Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| Duplex Steel S31803 | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
| Duplex Steel S32205 | 0.05 max | 1.00 max | 1.00 max | 0.030 max | 0.010 max | 24.00 – 26.00 | 3.00 – 4.00 | 6.00 – 8.00 | 0.20 – 0.30 | 57.61 min |
| Super Duplex Steel S32760 | 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 |
| Super Duplex Steel S32750 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
Duplex and Super Duplex Steel Pipes and Tubes Mechanical Properties
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
|---|---|---|---|---|
| S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
| S32750 / S32760 | 7.8 | 0.281 | 1350 | 2460 |
Applications of Duplex and Super Duplex Steel Pipes and Tubes
- Offshore platforms and subsea piping systems
- Heat exchangers and pressure vessels
- Desalination plant pipelines
- High pressure seawater injection systems
- Chemical and petrochemical processing lines
- Pulp and paper processing units
- Mining slurry pipelines
- Marine engineering structures
Why Aashish Metals is a Reliable Supplier for Duplex and Super Duplex Steel Pipes and Tubes?
Aashish Metals is regarded as a trusted supporter of the industry projects that need a good service quality, reliability of the materials used in preparing the products (certification), and timeliness. The exposure that we have enjoyed on the provision of Duplex Steel S31803 and S32205 Pipes and Tubes as well as Super Duplex Steel S32750 and S32760 Pipes and Tubes has helped the industries to attain the long term performance in term of harsh and corrosive environment. All the products are produced according to the international standards of which are: ASTM A789, ASTM A790, ANSI B36.19 and DIN standards, to ensure accuracy, uniformity and structural integrity.
Our stock of Duplex 2205 seamless and welded pipes, Super Duplex 2507 tubes, ERW tubing and bespoke fabricated pipes is wide enough to handle our urgent project needs without delay. Every batch has undergone PMI testing, hydro testing, and traceability of materials according to EN 10204 requirements and guarantee the customer authentic UNS and WNR grade materials. Our ability to produce corrosion resistant and high strength Duplex and Super Duplex Pipes and Tubes is used in industries worldwide as a component of offshore platforms, desalination plants, chemical processing, and also in high pressure systems.
Technical advice on grade choice, dimensional, and applicability is also offered by our team to enable engineers and procurement teams to find the proper material with certainty. Having a strong presence of Mumbai and supply reach to India and international market, Aashish Metals remains a reliable provider of quality driven Duplex and Super Duplex steel piping solutions.
For More Information About Super duplex steel S32750 / S32760 please call +91-22-66362223 / 66394926 or send an email to export@aashishmetal.com
Frequently asked questions for Duplex and Super Duplex for Pipes and Tubes
Duplex steel pipes are also very strong and do not corrode easily and Super duplex steel pipes have more chromium and molybdenum and this makes them less susceptible to pitting, crevice corrosion and chloride stress corrosion cracking. There are Super Duplex grades like S32750 and S32760 which are usually employed in extreme offshore and marine conditions.
In desalination plants, chemical processing units, heat exchangers, seawater systems and high pressure fluid transfer, when corrosion resistance and longevity are crucial, duplex plastic, specifically S31803 and S32205 pipes and tubes, are used.
The Super Duplex S32750 and S32760 pipes have excellent mechanical strength, high resistance to chloride rich environments and great service life. They can be used in offshore platforms, underwater equipment, and underwater high pressure pipelines.
Yes, the Duplex, as well as Super Duplex pipes, can be made in either seamless, welded, ERW, and EFW. High pressure and critical systems would have seamless pipes whereas medium-pressure and structural pipes would use welded pipes.
They are furnished in standards like ASTM A789, ASTM A790, ASME SA213, ANSI B36.19 and DIN 1.4462 and 1.4410. They comply with world standards in terms of strength, corrosion and dimensional accuracy.
Yes, Duplex 2205 and Super Duplex 2507 pipes are specially made to be used in the service of seawater. They are also resistant to pitting and crevice corrosion and are ideal to be used in desalination plants, offshore platforms, and marine structures.
Yes, they are provided with full material test certificates in accordance with EN 10204 3.1 or 3.2. They are the certifications of chemical composition, mechanical properties, traceability of heat number, and PMI and hydro testing results.
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