Duplex and Super Duplex Steel Threaded Fittings Manufacturer and Supplier
Home › Duplex & Super Duplex Steel Products › Duplex and Super Duplex Threaded Fittings
Aashish Metal is a reliable manufacturer and supplier of Duplex and Super Duplex Steel Threaded Fittings, which provide the companies high performance components that need strong components, corrosion resistance and long supply. We have the expertise of supplying threaded fittings of grades S31803 and S32205, of Super Duplex grade S32750 and S32760, which are engineered to work with a high pressure and in chloride rich environments. Fittings are made with high dimensional precision, threaded smoothly and with uniform surface finish to allow leak free and dependable assembly without welding.
We also produce an entire family of threaded elbows, tees, unions, couplings, plugs, bushings, and caps in international standards such as ASTM A182 and ASME B16.11. All products are subjected to PMI testing, hardness checks and inspection techniques to ensure that they meet the global quality standards. Having good stock, quick delivery, and certified materials with full traceability Aashish Metal helps in the critical projects of off-shore platforms, desalination plants, petro-chemical units, refineries, and hydraulic systems.
We incorporate technical skills, high purity raw materials and customer oriented service to provide reliable Duplex and Super Duplex threaded fittings to engineers, purchase departments and industrial purchasers all over the world.
Detailed Overview of Duplex and Super Duplex Steel Threaded Fittings
Duplex and Super Duplex Steel Threaded Fittings are used in high pressure and corrosive service conditions, where secure and leak resistant threaded joints of high durability are needed. These fittings are highly mechanically strong, dimensionally accurate and also have long life when placed in extreme industrial conditions. Their microstructure, alloy composition offers them good protection against chloride attack, pitting and stress related failures. Duplex and Super Duplex thread fittings are commonly chosen when petrochemical systems, offshore platforms, chemical plants, desalination units, and marine engineering work are required to be reliable and are not allowed to be compromised in terms of performance.
Duplex Steel S31803 and S32205 threaded fittings
Duplex Steel S31803 and S32205 threaded fittings provide high yield strength, resistance to corrosion as well as performance in high pressure flow systems that remain consistent. They are favored in hydraulic lines, offshore platforms, desalination units and pressure piping in environments that have moderate to high chloride concentrations. They are threaded so that they can be sealed without welding thereby being easy to install and maintain. Discover product specifications for Duplex Steel S31803 and S32205 threaded fittings.
- Super Duplex Steel S32750 and S32760 threaded fittings
- Material Grade Specifications for Super Duplex Steel Threaded Fittings
- Duplex Steel S31803 Threaded Fittings Equivalent Grades
- Types of Threaded Fittings Available
- Chemical Composition of Duplex Steel S31803 Threaded Fittings
- Mechanical Properties of Duplex Steel S31803 Threaded Fittings
- Applications of Duplex and Super Duplex Steel Threaded Fittings
- Why Aashish Metal for Duplex and Super Duplex Steel Threaded Fittings
- Frequently asked questions on Duplex and Super Duplex Steel Threaded Fittings
Super Duplex Steel S32750 and S32760 threaded fittings
The Super Duplex Steel S32750 and S32760 fittings are developed with a high level of resistance to pitting, crevice corrosion and aggressive seawater through the increased levels of chromium, molybdenum and nitrogen. These fittings are suitable in the case of subsea pipeline, chemical processing, and marine engineering operations that require a high level of corrosion resistance under extreme conditions.
Explore full product details of Super Duplex Steel S32750 and S32760 threaded fittings.
Material Grade Specifications for Super Duplex Steel Threaded Fittings
| Specifications | Details |
|---|---|
| Specifications | ASTM A182 & ASME SA182 |
| size | 1/8” NB to 4” NB (Screwed-Threaded) |
| Dimensions | ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
| Thread Type | NPT , BSPT, BSPP |
| End | Threaded, Welding, JIC |
| Pressure Rating | 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS |
| Connection | Welding |
| Test Certificates | EN 10204/3.1B |
| Raw Materials Certificate | Raw Materials Certificate |
| 100% Radiography Test Report | 100% Radiography Test Report |
| Third Party Inspection Report, etc | Third Party Inspection Report, etc |
| Origin & Mills | Japanese, Indian, USA, Korean, European, Ukraine, Russian |
Duplex Steel S31803 Threaded Fittings Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Duplex 2205 | 1.4462 | S31803 |
Types of Threaded Fittings Available
Threaded Elbow
Threaded Tee
Threaded Cross
Threaded Cap
Threaded Nipple
Threaded Head Bushing
Threaded Plug
Threaded Coupling
Threaded Union
Threaded Boss
Threaded Outlet
Threaded Adapter
Chemical Composition of Duplex Steel S31803 Threaded Fittings
| 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 |
Mechanical Properties of Duplex Steel S31803 Threaded Fittings
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
|---|---|---|---|---|
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Applications of Duplex and Super Duplex Steel Threaded Fittings
- Used in high pressure and corrosive fluid handling systems
- Ideal for offshore platforms, subsea pipelines, and marine engineering equipment
- Preferred in chemical processing units handling acids, solvents, and chloride rich fluids
- Installed in petrochemical and refinery piping networks for leak resistant connections
- Suitable for desalination and brine treatment plants due to strong pitting resistance
- Used in hydraulic and pneumatic lines requiring secure threaded joints
- Applied in power generation systems including boiler lines and heat exchangers
- Utilized in pulp and paper industries where corrosion protection is essential
- Common in fire fighting networks and industrial utility pipelines
- Selected for instrumentation lines, valve assemblies, and pressure control systems
Why Aashish Metal for Duplex and Super Duplex Steel Threaded Fittings
Aashish Metal is a renowned manufacturer and supplier of Duplex and Super Duplex steel threaded fittings, which has established a strong reputation of providing high performance parts in order to satisfy the international industrial demands. Our fittings are fabricated with the high-grade material Duplex S31803 and S32205 and Super Duplex S32750 and S32760 which are highly strong, corrosion-free and long-term reliable performances in the severe operating conditions. All the parts are produced with high degree of dimensional precision and free threading that facilitates leak free and secure jointing in high pressure systems.
We also comply with the international standards of ASTM A182 and ASME B16.11 and every fitting is tested in PMI and hardness testing, visual and quality inspection to guarantee full adherence to industrial requirements. Having good stock, good pricing, and ability to deliver goods quickly, Aashish Metal supplies the immediate project requirements in offshore platforms, petrochemical units, desalination plants, and chemical processing plants.
Aashish Metal is a company that engineers and EPC contractors, as well as procurement teams, rely on to provide excellent Duplex and Super Duplex threaded fittings with complete certification and traceability.
Frequently asked questions on Duplex and Super Duplex Steel Threaded Fittings
Duplex and Super Duplex Steel Threaded Fittings are used in high pressure and corrosive piping systems like offshore platforms, chemical processing plants, desalination unit, refinery pipelines and hydraulic flow lines. They are resistant to corrosion and strong, which makes them fit in the harsh industrial life.
S31803 and S32205 Duplex threaded fittings have good mechanical properties and are resistant to corrosion. Super Duplex alloys like S32750 and S32760 are even more resistant to pitting and chloride stress corrosion and are therefore found to work best in harsh offshore and marine settings.
Yes, Duplex and Super Duplex threaded fittings can be used in high pressure conditions provided that they are properly born. Their strength is mechanical, their threading is correct and sealing them is leak resistant, which makes them suitable in hydraulic systems and handling of aggressive fluids.
These fittings are produced in accordance to ASTM A182 and ASME B16.11. They are subjected to high quality checks such as PMI tests, hardness tests as well as dimensional inspection prior to supply.
Industries such as petrochemical, offshore oil and gas, marine engineering, desalination, power generation, and chemical processing commonly use these fittings due to their corrosion resistance and durability.
No, threaded fittings do not require welding. They are designed for fast installation, easy maintenance, and secure leak proof connections through threaded ends.
These fittings are available in a wide range of sizes from small instrumentation threads to large diameter industrial connections. Custom sizing can also be supplied based on project requirements.
Export Country
MIDDLE EAST Saudi Arabia | AFRICA Nigeria NORTH AMERICA Usa | EUROPE Russia | ASIA India SOUTH AMERICA Argentina |
Products
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| S31803 | 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 – 20 | 63.72 min |
