Inconel Tube Fittings Manufacturer, Supplier & Exporter in India - Mcneil Instruments
Mcneil Instruments is a leading manufacturer, supplier, and exporter of Inconel Tube Fittings in India, offering a wide range of high-performance nickel-based alloy fittings for critical industrial applications.
Mcneil Instruments is a top-tier manufacturer, supplier, and exporter of Inconel tube fittings, offering fittings in premium grades 600, 625, 718, 725, 800, and 800H. Designed for high-performance industries such as aerospace, petrochemical, power generation, and marine, our fittings ensure unmatched reliability in extreme environments.
Inconel 600 Tube Fittings
As a certified Inconel 600 tube fittings manufacturer, supplier, and exporter in India, we offer fittings made of nickel-chromium alloy that retain strength and resist oxidation at temperatures up to 1100 °C. Ideal for heat exchanger tubes, nuclear piping, and chemical reactors, they resist corrosion from alkaline and acidic processes.
Technical Specification
| Parameter | Specification |
| Composition | Ni 72 / Cr 14–17 / Fe 6–10 |
| Temp. Range | –253 °C to +1100 °C |
| Tensile Strength | ≥ 550 MPa |
| Yield Strength | ≥ 250 MPa |
| Hardness | ≤ 84 HRB |
| Standards | ASTM B366, ASME SB366 |
Key Highlights: Excellent weldability and formability; widely used in nuclear, petrochemical, and high-temp process tubing.
Inconel 625 Tube Fittings
Mcneil Instruments delivers high-performance Inconel 625 tube fittings with superior strength and resistance to chlorides, acids, and seawater corrosion. A trusted manufacturer, supplier, and exporter in India, these fittings are extensively used in cryogenic systems, marine piping, and sour gas environments.
Technical Specification
| Parameter | Specification |
| Composition | Ni 58 / Cr 20–23 / Mo 8–10 / Nb 3–4 |
| Temp. Range | –254 °C to +982 °C |
| Tensile Strength | ≥ 827 MPa |
| Yield Strength | ≥ 414 MPa |
| Hardness | ≤ 90 HRB |
| Standards | ASTM B366, ASME SB366, B564 |
Key Highlights: Exceptional ductility and weldability; used in offshore, chemical, and cryogenic tubing systems.
Inconel 718 Tube Fittings
Mcneil Instruments is your go-to Inconel 718 tube fittings manufacturer, supplier, and exporter in India furnishing heat-treatable, high-strength fittings for gas turbines, marine systems, and pressure-critical assemblies.
Technical Specification
| Parameter | Specification |
| Composition | Ni 50–55 / Cr 17–21 / Mo 2.8–3.3 / Nb+Ta 4.75–5.5 |
| Temp. Range | –253 °C to +700 °C |
| Tensile Strength | ≥ 1240 MPa |
| Yield Strength | ≥ 1035 MPa |
| Hardness | ≤ 35 HRC |
| Standards | ASTM B366, ASME SB366, B564 |
Key Highlights: Heat and creep resistant; ideal for aerospace and power sector tubing.
Inconel 725 Tube Fittings
As a leading Inconel 725 tube fittings manufacturer, supplier, and exporter in India, we offer aluminum + niobium-enhanced tube fittings with superior strength and corrosion protection, making them perfect for pressure-critical and marine-use tubing.
Technical Specification
| Parameter | Specification |
| Composition | Ni ~57 / Cr ~20 / Mo 8–9 / Co 2.5–3.5 / Ti+Al ~1.8 |
| Temp. Range | –196 °C to +650 °C |
| Tensile Strength | ≥ 1380 MPa |
| Yield Strength | ≥ 1100 MPa |
| Hardness | ≤ 40 HRC |
| Standards | ASTM B534, ASME SB534 |
Key Highlights: Superb resistance to crevice/pitting; ideal for oil drilling, chemical, and subsea tubing.
Inconel 800 Tube Fittings
Mcneil Instruments is a trusted manufacturer, supplier, and exporter of Inconel 800 tube fittings in India, delivering fittings with high-temperature oxidation resistance, especially in furnace, petrochemical, and heat exchanger tube applications.
Technical Specification
| Parameter | Specification |
| Composition | Ni 30–35 / Cr 19–23 / Fe ≤ 39.5 |
| Temp. Range | –200 °C to +1150 °C |
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 170 MPa |
| Hardness | ≤ 95 HRB |
| Standards | ASTM B516, ASME SB516 |
Key Highlights: Balanced strength and weldability; suitable for furnace tubing, petrochemical, and refining industries.
Inconel 800H Tube Fittings
We specialize in Inconel 800H tube fittings, offering enhanced heat strength and creep resistance making them the ideal choice for continuous high-temperature tubing lines in industrial furnaces and nuclear power systems.
Technical Specification
| Parameter | Specification |
| Composition | Ni 30–35 / Cr 19–23 / Fe ≤ 39.5 / C 0.05–0.10 / Al ≥ 1.0 |
| Temp. Range | –200 °C to +1150 °C |
| Tensile Strength | ≥ 550 MPa |
| Yield Strength | ≥ 310 MPa |
| Hardness | ≤ 100 HRC |
| Standards | ASTM B516, ASME SB516 |
Key Highlights: High creep resistance and thermal stability; suited for superheaters, turbine tube applications, and petrochemical reactor tubes.
Why Choose Mcneil Instruments for Inconel Tube Fittings
- ISO/CE-certified operations with quality inspections and PMI checks
• Expert CNC machining, precision thread cutting, and forging
• Quick dispatch from India for global clients
• Custom tube diameters, wall thicknesses, and toolings
• Full traceability and metallurgical reports
Ideal for These Industries
- Aerospace & Defense: Fuel and hydraulic tubing
- Oil & Gas: Downhole leak-proof tube runs
- Power Generation: High-temp tube systems
- Marine & Chemical: Seawater and aggressive environment tubing
- Petrochemical: Corrosion/Sulphur rich tube networks
Ready to Elevate Your Tube Systems?
Looking for top-quality Inconel tube fittings in India? Contact Mcneil Instruments now for quotes, technical support, bespoke designs, and prompt worldwide shipping.