Stainless Steel Duplex 2205 Pipe Fittings Manufacturer, Supplier and Exporter in India
Mcneil Instruments is a trusted manufacturer, supplier, and exporter of Stainless Steel Duplex 2205 Pipe Fittings in India, offering robust fittings designed for enhanced strength and corrosion resistance. Duplex 2205 is a nitrogen-enhanced duplex stainless steel alloy known for its excellent resistance to pitting, crevice corrosion, and stress corrosion cracking.
These pipe fittings are ideal for use in chemical processing, marine, oil & gas, and desalination plants where both strength and corrosion resistance are critical. The duplex microstructure offers double the strength of standard austenitic grades, making Duplex 2205 Pipe Fittings a cost-effective solution for high-performance applications.
Stainless Steel Duplex 2205 pipe fittings are high-performance components designed for piping systems that operate under high pressure, corrosive media, and demanding mechanical conditions. Duplex 2205 is a nitrogen-enhanced alloy with a balanced austenitic and ferritic structure, offering a rare combination of strength and corrosion resistance.
What this really means is better durability, longer service life, and safer performance in environments where standard stainless steel grades struggle.
Why Stainless Steel Duplex 2205 Pipe Fittings Are Preferred
Here’s the thing: Duplex 2205 delivers almost double the yield strength of conventional austenitic stainless steels while maintaining excellent resistance to corrosion. This allows engineers to design lighter piping systems without compromising safety or reliability.
Its strong resistance to pitting, crevice corrosion, and stress corrosion cracking makes it ideal for chloride-rich and aggressive industrial environments.
Specifications of Stainless Steel Duplex 2205 Pipe Fittings
| Specifications | ASTM A815 / ASME SA815 |
| Material Grade | Duplex 2205 (UNS S32205 / S31803) |
| Size Range | 1/2″ NB to 24″ NB |
| Type | Seamless / Welded / Fabricated |
| Form | Elbow, Tee, Reducer, Cap, Stub End |
| Schedule | SCH 10 to SCH XXS |
| Ends | Bevelled / Plain / Threaded |
| Standards | ASME B16.9, B16.11, MSS SP-43 |
Key Features and Benefits
- Dual-phase austenitic–ferritic microstructure
• High mechanical strength and load-bearing capacity
• Excellent resistance to pitting and crevice corrosion
• Superior stress corrosion cracking resistance
• Good weldability with proper procedures
• Long service life with reduced maintenance costs
These benefits make Duplex 2205 pipe fittings a dependable solution for critical piping systems.
Types of Stainless Steel Duplex 2205 Pipe Fittings
Stainless Steel Duplex 2205 pipe fittings are available in a complete range of configurations:
Elbows – Smooth flow direction change under high pressure
Tees & Crosses – Efficient branching and flow distribution
Reducers – Reliable diameter transitions
Couplings & Unions – Strong straight-line connections
Caps & Plugs – Secure pipe-end sealing
Stub Ends – Easy dismantling with lap joint flanges
Each fitting is engineered for leak-free operation and structural integrity.
Where Stainless Steel Duplex 2205 Pipe Fittings Are Used
Duplex 2205 pipe fittings are widely used in industries exposed to corrosive fluids and high stress:
Oil & Gas – Offshore and onshore pipelines
Chemical Processing – Chloride and acid handling systems
Marine & Offshore – Seawater and coastal exposure
Power Plants – Cooling and process piping
Pulp & Paper Industry – Corrosive process environments
Water Treatment & Desalination – High salinity applications
Duplex 2205 is often selected when 316 or 316L no longer meets performance requirements.
How to Choose the Right Duplex 2205 Pipe Fittings
When selecting Stainless Steel Duplex 2205 pipe fittings, consider:
Operating pressure and temperature
Chloride concentration and corrosion severity
Mechanical loads and vibration
Welding and fabrication requirements
Applicable industry standards
For systems demanding strength and corrosion resistance together, Duplex 2205 is a solid long-term choice.
Manufacturing, Supply & Export from India
We manufacture, supply, and export Stainless Steel Duplex 2205 pipe fittings using certified raw materials and precision-controlled processes. Our fittings are:
Manufactured with dimensional accuracy
Tested for pressure and mechanical strength
Inspected for corrosion resistance
Finished for industrial and offshore use
Securely packed for global shipment
We support EPC contractors, industrial plants, and international buyers with consistent quality and timely delivery.
Frequently Asked Questions – Stainless Steel Duplex 2205 Pipe Fittings
What makes Duplex 2205 pipe fittings stronger than 316/316L?
Duplex 2205 has a dual-phase structure that significantly increases strength and resistance to stress corrosion cracking.
Are Duplex 2205 pipe fittings suitable for offshore environments?
Yes. They are highly resistant to seawater and chloride-induced corrosion.
Can Stainless Steel Duplex 2205 pipe fittings be welded?
Yes. With correct welding procedures, strength and corrosion resistance are well maintained.
Are Duplex 2205 fittings suitable for high-pressure systems?
Absolutely. Their high yield strength makes them ideal for pressure-intensive applications.
Where are Duplex 2205 pipe fittings commonly used?
Oil & gas, chemical plants, marine structures, desalination units, power plants, and heavy industrial piping systems.




