Stainless Steel 321 Pipe Fittings Manufacturer, Supplier and Exporter in India
Mcneil Instruments is a trusted manufacturer, supplier, stockist, and exporter of Stainless Steel 321 Pipe Fittings in India, offering advanced piping solutions for high-temperature and high-stress environments. Stainless Steel 321 is a titanium-stabilized austenitic stainless steel known for its excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range (427–816°C).
These pipe fittings are ideal for applications involving continuous and intermittent service in environments where heat resistance is critical—such as aerospace, heat exchangers, chemical processing plants, and refinery systems. The addition of titanium in 321 helps in maintaining structural stability, especially in welded environments, making it superior to standard 304 in high-heat situations. Due to its strong mechanical properties, Stainless Steel 321 pipe fittings are extensively used in pressure vessels, exhaust manifolds, and expansion joints.
Specifications of Stainless Steel 321 Pipe Fittings
| Specifications | ASTM A403 / ASME SA403 |
| Material Grade | Stainless Steel 321 |
| Size Range | 1/2″ NB to 48″ 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, B16.28, MSS-SP-43 |
Key Features of Stainless Steel 321 Pipe Fittings
- Exceptional resistance to intergranular corrosion after welding
- Stabilized with titanium to prevent carbide precipitation
- Excellent strength and oxidation resistance up to 870°C
- Ideal for high-temperature and pressure applications
- Superior weldability and formability for complex assemblies
Why Choose Mcneil Instruments?
Proven Expertise: Leading manufacturer, supplier, and exporter of Stainless Steel 321 Pipe Fittings, trusted for high-performance piping in extreme conditions.
Global Standards Compliance: Manufactured in accordance with ASTM A403 / ASME SA403 and ASME B16.9, B16.11, B16.28, MSS-SP-43, ensuring durability and dimensional precision.
Superior Material Quality: Made from titanium-stabilized austenitic stainless steel (SS 321) for exceptional resistance to intergranular corrosion and oxidation at elevated temperatures.
Comprehensive Range: Available in seamless, welded, and fabricated types including elbows, tees, reducers, caps, and stub ends to meet diverse industrial needs.
High-Temperature Reliability: Engineered to withstand temperatures up to 870°C, making them ideal for aerospace, chemical, and refinery applications.
Custom Solutions: Offering tailored configurations and sizes for specific operational requirements and performance conditions.
Timely Delivery: Supported by a robust inventory and efficient logistics, ensuring on-time supply to clients across domestic and international markets.
Get Your Stainless Steel 321 Pipe Fittings Today – Contact Mcneil Instruments for precision-engineered, titanium-stabilized fittings that guarantee strength, stability, and corrosion resistance in demanding high-temperature environments.
Frequently Asked Questions – Stainless Steel 321 Pipe Fittings
What are Stainless Steel 321 Pipe Fittings? ?
Stainless Steel 321 Pipe Fittings are titanium-stabilized austenitic stainless steels designed to resist intergranular corrosion caused by carbide precipitation during welding.
How is SS 321 different from SS 304?
While both are austenitic stainless steels, SS 321 contains titanium, which stabilizes the alloy and prevents carbide formation, giving it better performance at high temperatures.
Where are Stainless Steel 321 Pipe Fittings used?
They are widely used in aerospace, chemical processing, refinery equipment, furnace components, and exhaust systems, where resistance to heat and oxidation is essential.