Super duplex pipe fittings
Super Duplex Fittings Provider in Qatar
Super duplex fittings are made from a higher alloy version of duplex stainless steel (DSS). They offer exceptional strength and excellent resistance to pitting and crevice corrosion.
At a glance
- Material: super duplex stainless steel (SDSS)
- Fitting types: elbow, tee, reducer, cap, stub end
- Sizes: 1/2″ – 48″
- Schedules: SCH5 – SCH XXS
- Method: seamless, welded or buttweld
- Used in: oil and gas, power
Top Manufacturer of Super Duplex SS Tee in Qatar
DuplexPipeline manufactures super duplex pipe fittings in Mumbai for high-pressure, corrosive service.
| Parameter | Details |
| Material | Super duplex stainless steel (UNS S32750 / 2507) |
| Size range | 1/2″ – 48″ |
| Schedule | SCH5 – SCH XXS |
| Method | Seamless / welded / buttweld |
| Coating | 3LPE, epoxy |
| Testing | NDT, hardness testing |
| Supply | Made in India, shipped to the Qatar and worldwide |
Super duplex elbow
SDSS pipe tee
Super duplex steel reducer
Why Choose Super Duplex Fittings?
- High strength: withstands high-pressure conditions without failure or deformation
- Corrosion resistance: resists pitting and crevice corrosion
- Long life: lasts reliably for years in difficult conditions
- Critical service: suits applications where durability is essential
Types of Super Duplex SS Fittings
Super duplex fittings are available in these types for Qatar projects:
| Fitting | What it does |
| Elbow | Changes flow direction, typically 45° or 90° |
| Tee | Branches fluid in different directions |
| Reducer | Connects pipes of different sizes |
| Cap | Closes the end of a pipe |
| Stub end | Pairs with a lap joint flange for easy disassembly |
| Coupling | Joins two pipe sections securely |
How Super Duplex Fittings Are Made
- Casting: used for more intricate fittings
- Forging: compressive force shapes elbows and other fittings
- Machining: turning and drilling refine shape and dimensions
- Heat treatment: improves mechanical properties
Alloying Elements and Performance
| Element | Effect |
| Chromium | Primary source of corrosion resistance |
| Nickel | Improves strength and toughness |
| Molybdenum | Resists pitting and crevice corrosion |
Specification of Super Duplex Pipe Fittings
Super duplex steel fittings
- Yield strength: 415 MPa
- Types: elbow, tee, reducer, cap
- Schedule: SCH5 – SCH XXS
Super duplex stainless steel cap
- Method: seamless/ welded/ buttweld
- Tensile strength: 60-95Ksi
- Application: oil gas, power
Super duplex stub end
- Size: 1/2″ – 48″
- Coating: 3LPE, Epoxy
- Testing: NDT
Chemical composition, UNS S32750 (%)
| Element | % |
| Carbon (C) | 0.030 max |
| Manganese (Mn) | 1.20 max |
| Silicon (Si) | 0.80 max |
| Phosphorus (P) | 0.035 max |
| Sulphur (S) | 0.020 max |
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 5.0 |
| Nitrogen (N) | 0.24 – 0.32 |
| Copper (Cu) | 0.50 max |
Mechanical properties
| Property | Value |
| Tensile strength | 800 MPa min |
| Yield strength | 550 MPa min |
| Elongation | 15% min |
| Hardness | 310 HB max |
Common Sizes of Buttweld Fittings
| Size range | Typical use |
| DN 15 – 300 | Smaller-diameter piping, common in oil and gas |
| DN 350 – 600 | Medium pipe systems needing higher flow rates |
Hardness of Super Duplex Stub Ends
- Higher hardness than standard austenitic stainless steel
- Caused by higher alloying and dual ferrite-austenite phases
- Measured on the Rockwell or Brinell scale
Super Duplex Pipe Fittings Stock in Mumbai for the Qatar
- Our super duplex pipe fittings stock covers elbows, tees, reducers, caps, stub ends and couplings
- Sizes from 1/2″ to 48″
- Schedules SCH5 to SCH XXS
- Seamless, welded and buttweld options
- To check super duplex pipe fittings stock for the Qatar, send your type, size, schedule and quantity
Buy Super Duplex Pipe Fittings in the Qatarfrom DuplexPipeline
When you buy super duplex pipe fittings from us, you get:
- NDT and hardness-tested fittings
- 3LPE and epoxy coating options
- Quality assurance and worldwide shipping, including the Qatar
How to order
- Share type, size, schedule and quantity
- Receive datasheet and quote
- Confirm the order
Benefits of Super Duplex Pipe Fittings in High-Pressure Environments
- Exceptional strength for high-pressure conditions
- Resistance to pitting and crevice corrosion
- Reliable performance for years in difficult conditions
Price vs Performance of Super Duplex Fittings
| Factor | Detail |
| Price | Higher, due to more alloying and complex manufacturing |
| Corrosion resistance | Excellent compared to standard austenitic stainless steel |
| Strength | Exceptional compared to standard austenitic grades |
| Best for | Critical applications where durability is essential |
Frequently Asked Questions
Super duplex pipe fittings — Questions Buyers Ask Most
What are super duplex fittings used for?
Connecting, redirecting and closing pipes in high-pressure, corrosive systems
What is included in fittings and pipes for super duplex systems?
What is an elbow pipe used for?
What are pipe couplings?
What is a stub end used for?
Are super duplex pipe fittings corrosion-resistant in Qatar conditions?
Yes, they resist pitting, crevice corrosion and chloride-based degradation
Super duplex stainless steel which is a higher alloy version of DSS exhibits exceptional strength. Due to this increased strength, the pipe fittings can sturdily withstand high-pressure conditions without zero failure or deformation.
The super duplex pipe fittings can excellently resist localized corrosion phenomena such as pitting and crevice corrosion. This corrosion resistance makes sure the pipe fittings last reliably for years long in all kinds of difficult conditions.
Top Manufacturer of Super Duplex SS Tee in India
Manufacturers use well-known and useful casting procedures for producing SDSS fittings, particularly the more intricate and tricky ones. Forging is the popular method by which different pipe fittings are shaped by manufacturers by applying compressive forces to the pipe material.
Different machining processes such as turning and drilling are employed by manufacturers to refine the shape and dimensions of the SDSS bend fittings. SDSS fittings also undergo a heat treatment process to enhance their mechanical properties.
DuplexPipeline – Leading Super Duplex Fittings Distributor in Mumbai Using Advanced Assembly Methods
Super duplex elbow
SDSS pipe tee
Super duplex steel reducer
The alloys of the SDSS elbow fittings impart specific properties that contribute to their performance in various environments. Chromium, the primary alloying element in SDSS, provides excellent corrosion resistance.
Nickel enhances the strength and toughness of SDSS elbows. Molybdenum increases the resistance of super duplex elbows to localized corrosion, such as pitting and crevice corrosion.
Get in Touch to Know Available Sizes of Super Duplex Buttweld Fittings
We are high quality super duplex pipe fittings manufacturer in India, to check inventory visit us
To assure the dependability and security of super duplex elbow, we employ hardness testing techniques
Super duplex steel fittings
- Yield strength: 415 MPa
- Types: elbow, tee, reducer, cap
- Schedule: SCH5 – SCH XXS
Super duplex stainless steel cap
- Method: seamless/ welded/ buttweld
- Tensile strength: 60-95Ksi
- Application: oil gas, power
Super duplex stub end
- Size: 1/2″ – 48″
- Coating: 3LPE, Epoxy
- Testing: NDT
Join us to discover the chemical composition of the SDSS stub end and super duplex reducer
The most common sizes of SDSS buttweld fittings used in the industry typically fall within the following nominal pipe size (NPS) range. DN 15 to 300 are commonly used for smaller-diameter piping systems and are prevalent in industries such as oil and gas. DN 350 to 600 is the ideal size for medium pipe systems when higher flow rates are required.
SDSS typically exhibits higher hardness compared to standard austenitic stainless steel. This is due to its increased alloying elements and the presence of both ferrite and austenite phases.
The hardness of SDSS stub ends is often measured using the Rockwell hardness scale or the Brinell hardness scale. The hardness values of the stub end can range between 25 to 40.
SDSS reducer is usually more expensive because of its increased alloying elements and the complexity involved in the steel manufacturing process. But despite its higher price point, SDSS exhibits excellent corrosion resistance as compared to standard austenitic SS or any other steel grade.
The SDSS reducer also exhibits exceptional mechanical strength as compared to standard austenitic stainless steel grades. SDSS’s corrosion resistance and mechanical strength make them suitable for critical applications where durability is needed.
