Duplex pipe fittings
Custom Duplex Pipe Fittings Fabricator in Iraq
Duplex pipe fittings are made from duplex stainless steel (DSS), which combines austenitic and ferritic structures. Engineers choose them for corrosion resistance, high strength and toughness.
At a glance
- Material: duplex stainless steel (UNS S31803)
- Fitting types: elbows, tees, reducers, caps, couplings, stub ends
- Sizes: 1/2″ – 48″
- Schedules: SCH5 – SCH XXS
- Method: seamless or welded
- Testing: hydrotest
Duplex Elbow Manufacturer in Iraq
DuplexPipeline manufactures duplex steel pipe fittings in Mumbai for piping and plumbing systems that need high strength and corrosion resistance.
| Parameter | Details |
| Material | Duplex stainless steel (DSS) |
| Size range | 1/2″ – 48″ |
| Schedule | SCH5 – SCH XXS |
| Method | Seamless / welded |
| Coating (buttweld) | 3LPE, FBE |
| Testing | Hydrotest |
| Supply | Made in India, shipped to the Iraq and worldwide |
Why Choose Duplex Pipe Fittings?
- Corrosion resistance: handles chloride solutions, acids and alkaline solutions
- Higher strength: stronger than austenitic stainless steel pipe grades
- Longer service life: extends the life of the piping system
- Fatigue resistance: suits dynamic or cyclic loading
- Toughness: stays ductile in both hot and cold service
Know the Range of Duplex Steel Pipe Fittings
Duplex pipe fittings are available in these types for Iraq projects:
| Fitting | What it does |
| Elbow | Changes flow direction |
| Tee | T-shaped, branches fluid in different directions |
| Reducer | Connects pipes of different sizes |
| End cap | Closes or terminates the end of a pipe |
| Plug | Closes the end of a pipe |
| Coupling | Joins two pipe sections |
| Stub end | Used with lap joint flanges for easy disassembly |
DSS fittings
Duplex elbow
Duplex steel tee
Temperature Performance of Duplex Pipe Fittings
| Condition | Performance |
| High temperature | Keeps strength without deformation, good creep resistance |
| Low temperature | Keeps toughness and ductility, no brittleness |
| Typical industries | LNG processing, refrigeration systems |
Specification of Duplex Steel Pipe Fittings
DSS buttweld fittings
- Coating: 3LPE, FBE
- Application: chemical
- Size: 1/2″ – 48″
DSS fitting
- Tensile strength: 60-95Ksi
- Testing: hydrotest
- Schedule: SCH5 – SCH XXS
Duplex steel reducer
- Method: seamless/ welded
- Types: elbow, tee, reducer, cap
- Yield strength: 415 MPa
Chemical composition, UNS S31803 (%)
| Element | % |
| Carbon (C) | 0.030 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.030 max |
| Sulphur (S) | 0.020 max |
| Chromium (Cr) | 21.0 – 23.0 |
| Nickel (Ni) | 4.5 – 6.5 |
| Molybdenum (Mo) | 2.5 – 3.5 |
| Nitrogen (N) | 0.08 – 0.20 |
Mechanical properties
| Property | Value |
| Tensile strength | 620 MPa min |
| Yield strength | 450 MPa min |
| Elongation | 25% min |
Pressure Rating of Duplex Steel Pipe Fittings
- Rating depends on fitting type, size and schedule
- Larger buttweld fittings have different ratings from small fittings
- Contact us for application-specific ratings
Duplex Pipe Fittings Stock in Mumbai for the Iraq
- Our duplex pipe fittings stock covers elbows, tees, reducers, caps, couplings and stub ends
- Sizes from 1/2″ to 48″
- Schedules SCH5 to SCH XXS
- Seamless and welded options
- To check duplex pipe fittings stock for the Iraq, send your type, size, schedule and quantity
Buy Duplex Pipe Fittings in the Iraq from DuplexPipeline
When you buy duplex pipe fittings from us, you get:
- Hydrotested fittings
- Pickling and passivation finishes
- Quality assurance and worldwide shipping, including the Iraq
How to order
- Share type, size, schedule and quantity
- Receive datasheet and quote
- Confirm the order
Benefits of Duplex End Caps
- Strong resistance to chloride solutions, acids and alkaline solutions
- Higher strength than austenitic stainless steel
- Longer service life for the piping system
- Good fatigue resistance under cyclic loading
Surface Finishes
| Finish | What it does |
| Pickling | Removes impurities, scale and oxides using acid solutions |
| Passivation | Creates a protective oxide layer that improves corrosion resistance |
Frequently Asked Questions
Duplex pipe fittings — Questions Buyers Ask Most
What are duplex pipe fittings used for?
What is a stub end?
What is the difference between SS pipe and duplex pipe fittings?
- Duplex fittings use dual-phase steel
- Higher strength and better corrosion resistance than standard SS pipe
What is a pipe connector?
Are these fittings suitable for piping and plumbing use in the Iraq?
Yes, for industrial systems needing high strength and corrosion resistance
Duplex pipe fittings are pipe fittings made from the renowned material DSS which contains a combination of austenitic and ferritic steel. Project engineers usually prefer this SS over other materials for their amazing corrosion resistance, high strength, and toughness qualities.
Project engineers usually employ DSS pipe fittings to connect and control the fluid flow in all kinds of piping. These DS pipe fittings usually include elbows, tees, reducers, couplings, and flanges among others.
Duplex elbow manufacturer in India
The DSS elbow is a pipe fitting used to change the direction of the flow in a piping system. A DSS tee has a fitting that has a T-shaped design which the fluids to branch off in different directions.
DSS reducer is a fitting used to connect pipes of different sizes. Caps and plugs are DSS fittings used to close the end of a pipe.
For Durable DSS Tees, Reducers & Elbows in Any Temperature – Reach Out Now
DSS fittings
Duplex elbow
Duplex steel tee
DSS pipe fittings sturdily maintain their mechanical strength and integrity without deformation in high-temperature applications. It exhibits good creep resistance which refers to its ability to withstand prolonged exposure to elevated temperatures.
DSS can sturdily retains its toughness and ductility and withstand low temperatures without becoming brittle. This is why industries such as liquefied natural gas processing, and refrigeration systems highly prefer DSS.
Explore Duplex Steel Pipe Fitting Pressure Ratings Tailored to Your Requirements
We are a leading duplex pipe fittings manufacturer in India, to know more contact us
To learn more about the benefits of using a duplex end cap in your piping system, view our product information and specifications
DSS buttweld fittings
- Coating: 3LPE, FBE
- Application: chemical
- Size: 1/2″ – 48″
DSS fitting
- Tensile strength: 60-95Ksi
- Testing: hydrotest
- Schedule: SCH5 – SCH XXS
Duplex steel reducer
- Method: seamless/ welded
- Types: elbow, tee, reducer, cap
- Yield strength: 415 MPa
Know more about the chemical and mechanical properties of duplex ss fittings and DSS reducers by browsing with us
Typically, DSS fittings are available in pressure ratings ranging from 3000 pounds Per Square Inch psi to 9000 psi for small fittings. For large-sized DSS buttweld fittings such as flanges, pressure ratings can sometimes extend beyond 10,000 psi. To obtain accurate and specific pressure ratings, it is recommended to contact the DSS pipe fittings manufacturer in India.
A DSS end cap exhibits sturdy resistance to a wide range of corrosive environments including chloride-containing solutions, acids, and alkaline solutions. DSS usually displays higher strength as compared to austenitic stainless steel and other grades.
By using DSS end caps, the overall service life of the piping system can be extended. DSS has good fatigue resistance which is crucial in dynamic or cyclic loading conditions.
We are duplex steel buttweld fittings supplier, our DSS fittings can be finished using various surface treatments to meet requirements and enhance their performance. Pickling methods are used for the removal of impurities, scale, and oxides from the surface of the fittings using acid solutions. Passivation is a subsequent treatment that creates a protective oxide layer on the surface, improving the corrosion resistance of the pipe.
