Duplex Steel S31803 S32205 and Super Duplex S32750 S32760 Pipe Fittings
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Duplex and Super Duplex steel pipe fittings play a significant role in piping systems that work under high pressure, chloride fluid and harsh environmental factors. The purpose of these fittings is to ensure structural stability, localized corrosion resistance, and to work within continuous service.
The pipe fittings made of Duplex Steel S31803 and S32205 are characterized by the balanced ferritic-austenitic structure with high yield strength and enhanced stress corrosion cracking resistant properties. These grades are applied in the systems that need high mechanical performance besides stable corrosion protection.
Super Duplex Steel S32750 and S32760 pipe fittings have a higher alloy content which is more pitting and crevice resistant to corrosion particularly in seawater and aggressive conditions of chemicals. They are also superior in strength and hence they can be used in offshore equipment, desalination facilities, and in high-pressure industrial activities.
These fittings are used by engineers and procurement teams in projects which demand long service life and safe fluid handling as well as reliable performance. High mechanical strength and high resistance to corrosion are some of the qualities that have seen the Duplex and Super Duplex fittings being used in preference in refineries, petrochemical units, water treatment plants, marine operations and in chemical processing applications.
ANSI B16.9 ANSI B16.28 MSS SP 43 and MSS SP 79 Duplex and Super Duplex S31803 S32205 S32750 S32760 ASTM A815 Werkstoff 1.4462 and 1.4410 Buttweld Pipe Fittings Manufacturer and Supplier
Duplex and Super Duplex steel buttweld pipe fittings have been gaining popularity among industrial systems that must possess a high degree of mechanical strength, corrosion and their extended service life. These fittings are also produced under MSS SP 43 and MSS SP 79 standards to ensure that they can be utilized on critical piping applications with a consistent performance despite the standards being ANSI B16.9, ANSI B16.28, MSS SP 43 and MSS SP 79. Duplex Steel S31803 and S32205 containing Super Duplex Steel S32750 and S32760 is more advantageous in terms of pitting as well as crevice corrosion and stress-corrosion cracking resistance particularly in high pressure and high chloride environments.
The major specification used in the production of Duplex and Super Duplex buttweld pipe fittings is ASTM A815, which is underpinned by internationally recognized Werkstoff numbers 1.4462 and 1.4410. These grades have been used in industries like offshore drilling, petrochemical processing, desalination, power generation and chemical handling systems where consistency of fluid transfer is required. These fittings are used in various varieties of elbows, tees, reducers, stub ends, and caps as a trusted manufacturer and supplier and are integrated easily into the complex pipelines.
Duplex Steel S31803 S32205 Pipe Fittings
The duplex steel S31803 S32205 pipe fittings offer a balanced high strength and corrosion properties on account of their ferritin-austenitic microstructure. These fittings are manufactured as per ASTM A815 and to the ANSI B16.9 and ANSI B16.28 dimensions so that they fit perfectly. Duplex 2205 has good compatibility in moderately chloride environments and is commonly used in refinery, water treatment facilities and in heat exchanger applications.
Explore full product details on our Duplex Steel S31803 S32205 Pipe Fittings page.
- Super Duplex Steel S32750 S32760 Pipe Fittings
- Technical Specifications of Duplex and Super Duplex Buttweld Pipe Fittings
- ASTM A815 Duplex and Super Duplex Buttweld Pipe Fittings Stock Availability
- Tensile Strength of Super Duplex Steel Pipe Fittings
- Chemical Composition of Super Duplex Stainless Steel Buttweld Fittings
- Mechanical Properties of ASTM A815 Super Duplex Steel Buttweld Pipe Fittings
- Applications of Duplex and Super Duplex Pipe Fittings
- Advantages of Duplex and Super Duplex Pipe Fittings
- Frequently Asked Questions on Duplex and Super Duplex Pipe Fittings Export Country
Super Duplex Steel S32750 S32760 Pipe Fittings
Super Duplex Steel S32750 S32760 pipe fittings have high mechanical capability and excellent seawater, aggressive, and high pressure media resistance. These fittings are manufactured according to ASTM A815 and are related to Werkstoff 1.4410 and 1.4462, which are used for offshore platforms, subsea pipelines and harsh chemical process applications. They have a greater alloy content which makes them long term durable and stable in the most corrosive conditions.
View complete details on our Super Duplex Steel S32750 S32760 Pipe Fittings page.
Technical Specifications of Duplex and Super Duplex Buttweld Pipe Fittings
| Specifications | Details |
|---|---|
| Standards | ASTM, ASME |
| Designation | A815, SA815 |
| Dimension Standard | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Grade | Super Duplex Buttweld Pipe Fittings. |
| Type | Seamless, Welded |
| Thickness | Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS |
| Size | 1/2″ to 24″ |
| Two Joint / Two Halve Butt weld Fittings Size | 6″ to 48″ |
| Types of Butt weld Fittings | Equal Tee, Nipple, Long Radius Elbow, Reducing Tee, Elbows, Swage Nipple, Short Radius Elbow, Reducer, Barrel Nipple, 90 Deg Elbow, Concentric Reducer, Reducing Nipple, 45 Deg Elbows, Eccentric Reducer, Bend, 180 Deg Elbow, End Cap, 1D Elbow, 3D Elbow, Stubend, 5D Elbow, Cap, Piggable Bend, Long Stubend, Tee, Short Stubend, Long Radius Bend. |
| Also as per National & International Standard &Specification | Also as per National & International Standard &Specification |
ASTM A815 Duplex and Super Duplex Buttweld Pipe Fittings Stock Availability
Super Duplex Butt weld Elbow
Super Duplex Butt weld Tee
Super Duplex Butt weld Cross
Super Duplex Butt weld Reducer
Super Duplex Butt weld Stub End
Super Duplex Butt weld Pipe Cap
Super Duplex Butt weld Nipple
Super Duplex Butt weld Bend
Tensile Strength of Super Duplex Steel Pipe Fittings
| Tensile Strength | Temperature °F |
|---|---|
| 83 KSI | 392°F |
| 81 KSI | 572°F |
| 96 KSI | 122°F |
| 90 KSI | 212°F |
Chemical Composition of Super Duplex Stainless Steel Buttweld Fittings
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| S32750 | 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 |
| S32760 | 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 |
Mechanical Properties of ASTM A815 Super Duplex Steel Buttweld Pipe Fittings
| Grades | Density (g/cm³) | Density (lb/in³) | Melting Point (°C) | Melting Point (°F) |
|---|---|---|---|---|
| S32750 / S32760 | 7.8 | 0.281 | 1350 | 2460 |
Applications of Duplex and Super Duplex Pipe Fittings
Duplex and Super Duplex pipe fittings are applied in the industries where it needs high strength, corrosion and safe handling of fluids in hostile environments. They have good mechanical stability and pitting resistance that enable them to be used in a wide variety of systems where good performance and longevity are required.
Key Applications:
- Oil and gas transmission pipelines
- Offshore platforms and subsea equipment
- Chemical and petrochemical processing units
- Desalination and water treatment plants
- Marine and seawater handling systems
- High-pressure heat exchanger and condenser lines
- Pulp and paper industry processing equipment
- Mining and slurry systems exposed to chlorides
- Pressure vessels and critical fluid distribution networks
- Power generation and steam handling systems
Duplex Steel S31803 and S32205 are used in medium to high chloride conditions with its balanced microstructure and high mechanical properties. S32750 and S32760, which are Super Duplex Steel, are used in severe corrosion systems that are exposed to seawater as well as those that have continuous high-pressure handling.
Advantages of Duplex and Super Duplex Pipe Fittings
The duplex and Super Duplex pipe fittings have a mechanical strength, corrosion resistance and long term stability in operations that cannot be matched with the normal stainless fittings. Duplex grades like S31803 and S32205 have high yield strength with enhanced resistance to stress corrosion crack and excellent toughness which is perfect in the demanding industrial system.
S32750 and S32760 grades of Super DP have an even better resistance to pitting, crevice corrosion and aggressive chloride media. They are of high chromium, molybdenum and nitrogen contents which ensure high resistance in the sea, offshore drilling, desalination and chemical environment. These fittings are effective with time and when there is constant stress and change of pressure under which corrosive fluids reduce the downtime and enhance the life of the equipment.
Both Duplex and Super Duplex pipe fittings are manufactured to ensure dimensional precision, integrity welding behavior, and standardized flow properties in the complicated pipelines.
Why Aashish Metals for Duplex and Super Duplex Pipe Fittings
Aashish Metals produces high quality of Duplex and Super Duplex pipe fittings by utilizing certified raw material and are supplied to their customers as per ASTM A815, ANSI B16.9, ANSI B16.28 and MSS SP-43 specifications. The firm will market fittings of all the significant grades like Duplex S31803, S32205 and Super Duplex S32750, S32760 with strict tolerances and unvaried mechanical characteristics.
Aashish Metals also makes sure that every buttweld fitting is subjected to rigorous testing, such as PMI, mechanical and dimensional testing. Seamless integration with large scale industrial projects is possible due to the availability of both elbows, reducers, tees, stub ends, caps and customized fittings.
Having a high emphasis on the corrosion resistance and the high strength fittings, Aashish Metals serves offshore, chemical, petrochemical water treatment and desalination. Aashish Metals is considered a viable supplier of Duplex and Super Duplex pipe fittings in the world market due to fast delivery, material traceability, and sound technical support.
Frequently Asked Questions on Duplex and Super Duplex Pipe Fittings
Duplex pipe fittings like S31803 and S32205 can provide good resistance to corrosions and high mechanical strength in case of medium to high chloride conditions. Super Duplex such as S32750 and S32760 has increased chromium and molybdenum and is therefore better resistant to pitting, crevice corrosion and stress corrosion cracking where the conditions are very severe in the offshore and seawaters.
Yes. S32750 and S32760 pipe fittings are super duplex that has been specifically designed to withstand seawater and chloride environments. They have high PREN values that guarantee superior resistance to corrosion and are, therefore, suitable in offshore constructions, desalination plant, and marine processing units.
The majority of Duplex and Super Duplex pipe fittings are custom-made to ASTM A815, and dimensionally to ANSI B16.9, ANSI B16.28, MSS SP-43 and MSS SP-79. These standards are used to provide uniform quality, correct fitment and dependable performance in industrial piping systems.
S31803 and S32205 duplex have been used a lot in refineries, chemical processing lines, heat exchangers, water treatment systems and piping networks that are subject to moderate chloride. Their ferritic-austenitic design is balanced, which provides long-term serviceability in the most challenging conditions.
Super Duplex fittings have a far larger tensile strength, resistance to localized corrosion and long term service life than normal stainless steels. These qualities render them the choice of offshore and high-pressure as well as aggressive chemical conditions.
Yes. Duplex S31803 S32205 and Super Duplex S32750 S32760 pipe fittings are good to be welded provided that correct heat input and welding methods are applied. This makes sure that the joints are strong and the performance of the joints is stable even in complex piping layouts.
Choose – Select Duplex S31803 or S32205 to be used when it requires a medium amount of chloride exposure, balanced corrosion protection, and high mechanical strength. Select Super Duplex S32750 or S32760 when operating in harsh seawater conditions, under high pressure or when the system needs to have maximum pitting and crevice corrosion resistance.
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