Incoloy 800 Tube Fittings Manufacturer, Supplier & Exporter in India, USA, Turkey & Nigeria
Incoloy 800 Tube Fittings are manufactured from Alloy 800, a nickel-iron-chromium alloy developed for applications requiring resistance to oxidation, carburization and high-temperature corrosion along with useful mechanical strength.
Mcneil Instruments is an Incoloy 800 Tube Fittings Manufacturer, Supplier, Stockist & Exporter in India, offering Incoloy 800 instrumentation and tube fittings in configurations including double ferrule fittings, compression fittings, tube unions, elbows, tees, connectors, adapters and bulkhead fittings.
Incoloy 800 is identified as UNS N08800, Werkstoff No. 1.4876 and Alloy 800. Its nominal chemistry contains approximately 30–35% nickel, 19–23% chromium and at least 39.5% iron, with controlled aluminium and titanium additions.
Unlike Incoloy 800H and 800HT, standard Alloy 800 does not have the same higher-carbon/coarse-grain requirements used for creep and stress-rupture applications at higher temperatures. Selection between 800, 800H and 800HT should therefore be based on the actual design temperature, stress, product form and applicable code.
What Are Incoloy 800 Tube Fittings?
Incoloy 800 Tube Fittings are precision components used to connect, branch, redirect, terminate or transition tubing in instrumentation and process systems.
They are selected for applications where tubing may experience elevated temperatures, oxidation, carburization or corrosive process conditions.
Typical applications include:
Heat exchangers
Process heaters
Furnace equipment
Petrochemical systems
Chemical-processing equipment
Steam and hydrocarbon processing
Heat-treatment equipment
Power-generation equipment
Process instrumentation
High-temperature tubing systems
Actual service suitability depends on temperature, stress, atmosphere, process chemistry and the specific product condition.
Incoloy 800 Tube Fittings Specifications
Parameter Specification
Material Incoloy 800
Alloy Alloy 800
UNS N08800
Werkstoff No. 1.4876
Alloy Family Nickel-Iron-Chromium
Nickel 30.0–35.0%
Chromium 19.0–23.0%
Iron 39.5% Min
Wrought Fittings ASTM B366 / ASME SB366
Forged Components ASTM B564 / ASME SB564, where applicable
Seamless Pipe & Tube ASTM B407 / ASME SB407
Welded Tube/Pipe ASTM B515 / ASME SB515, where applicable
Butt-Weld Dimensions ASME B16.9, where applicable
Forged SW / Threaded Dimensions ASME B16.11, where applicable
Connection Types Compression, Double Ferrule, Threaded, Tube-to-Tube
Thread Options NPT, BSP, BSPT, BSPP and Metric, as specified
Size Inch and metric configurations
Material Condition Annealed / specification-dependent
Surface Finish Machined / polished / specified
Certification MTC / EN 10204 documentation where required
ASTM B366/B366M covers factory-made wrought nickel and nickel-alloy fittings for pressure piping, including applicable butt-welding and threaded/socket-welding fittings. The current active edition is ASTM B366/B366M-25.
Technical Specification of Incoloy 800 Tube Fittings
| Parameter | Specification |
|---|---|
| Alloy | Incoloy 800 (UNS N08800) |
| Standard | ASTM B366 / ASME SB366 |
| Temperature Range | –200 °C to +593 °C (1100 °F) |
| Resistance | Oxidation, carburization, chloride |
| Applications | Heat exchangers, nuclear tubing |
Chemical Composition of Incoloy 800
Typical chemical requirements for Incoloy 800 / UNS N08800 include:
Element Composition
Nickel 30.0–35.0%
Chromium 19.0–23.0%
Iron 39.5% Min
Carbon 0.10% Max
Manganese 1.50% Max
Silicon 1.00% Max
Copper 0.75% Max
Aluminium 0.15–0.60%
Titanium 0.15–0.60%
Sulfur 0.015% Max
The nickel-chromium-iron base provides resistance to oxidation and carburization, while aluminium and titanium contribute to alloy stability and high-temperature performance.
Mechanical Properties of Incoloy 800
For annealed Alloy 800, commonly published minimum room-temperature mechanical requirements include:
Property Minimum Value
Tensile Strength 517 MPa / 75 ksi
Yield Strength, 0.2% Offset 207 MPa / 30 ksi
Elongation 30%
Mechanical properties vary according to product form, dimensions, heat treatment and governing specification. The certified properties for the supplied material should be taken from the applicable material test certificate.
Manufacturing Process of Incoloy 800 Tube Fittings
1. Material Selection
Certified UNS N08800 material is selected according to the applicable specification.
2. Cutting
Approved bar, tube, pipe or other starting material is cut to the required dimensions.
3. Forming or Forging
The required fitting geometry is produced using the appropriate manufacturing route.
4. Heat Treatment
The component is heat treated according to the applicable specification and required material condition.
5. CNC Machining
Precision machining produces:
Tube bores
Ferrule seats
Threads
Internal passages
Connection ends
External profiles
6. Finishing
Components undergo:
Deburring
Cleaning
Surface finishing
Thread inspection
Dimensional finishing
7. Final Inspection
Finished fittings are inspected against the applicable drawing, material specification and customer requirements.
Applications of Incoloy 800 Tube Fittings
Petrochemical Industry
Potential applications include:
Process instrumentation
Furnace systems
Heat exchangers
Hydrocarbon processing
Process heaters
High-temperature tubing
Chemical Processing Industry
Potential applications include:
Heat-transfer systems
Process-control systems
Chemical processing equipment
Process instrumentation
High-temperature piping systems
Power Generation
Applications may include:
Heat exchangers
Boiler-related systems
Furnace equipment
Process instrumentation
High-temperature process systems
Furnace and Heat-Treatment Equipment
Incoloy 800 can be used in suitable:
Furnace tubing
Heating equipment
Heat-treatment systems
Furnace components
Process-heating equipment
Oil & Gas Industry
Potential applications include:
Process instrumentation
Petrochemical processing
High-temperature process lines
Heat exchangers
Furnace systems
Industrial Process Equipment
Potential applications include:
Heat exchangers
Process heaters
Reactors
Process skids
High-temperature instrumentation
Why Choose Incoloy 800 Tube Fittings?
Incoloy 800 is selected for applications requiring a combination of nickel-alloy corrosion resistance, high-temperature oxidation resistance and mechanical stability.
Key Advantages
Nickel-iron-chromium alloy composition
Good oxidation resistance
Good carburization resistance
Resistance to nitriding in suitable environments
Good high-temperature corrosion resistance
Good mechanical strength
Good ductility
Useful resistance to chloride-related corrosion in suitable conditions
Suitable for heat-transfer applications
Suitable for selected petrochemical applications
Good fabrication characteristics
Service performance depends on temperature, atmosphere, stress, process chemistry and material condition.
Grade Highlights
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Excellent High-Temperature Strength: Retains mechanical strength in continuous service up to 1150 °C and intermittent exposure beyond.
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Corrosion Resistance: Resistant to oxidation, carburization, and sulfidation, suitable for petrochemical, chemical, and marine applications.
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Ductile and Weldable: Easy fabrication of pipe spools, elbows, tees, and custom fittings without compromising quality.
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Durable and Reliable: Minimizes maintenance, ensuring long-term performance under harsh industrial conditions.
Why Work with Mcneil Instruments
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Certified Manufacturer, Supplier & Exporter: Trusted source of Incoloy 800 Tube Fittings in India and worldwide.
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Global Reach: Delivering solutions to USA, Turkey, Nigeria, Africa, Europe, UAE, and other international markets.
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Quality Assurance: Each fitting is rigorously tested for mechanical strength, corrosion resistance, and dimensional accuracy.
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Custom Solutions: Available in various sizes, wall thicknesses, and connection types to meet project-specific needs.
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Timely Delivery: Efficient supply for both bulk and urgent orders across global markets.
Contact Mcneil Instruments Today – Get premium Incoloy 800 Tube Fittings for high-temperature, chemical, and industrial applications worldwide.
Frequently Asked Questions – Incoloy 800 Tube Fittings
What makes Incoloy 800 tube fittings suitable for high-temperature applications?
Incoloy 800 tube fittings maintain their mechanical strength and resist oxidation up to 593 °C, making them ideal for heat exchangers, furnace tubes, and nuclear applications worldwide.
Can Incoloy 800 fittings be customized for specific industrial requirements?
Yes, we offer Incoloy 800 tube fittings in various sizes, wall thicknesses, and connection types including tube-to-male, female, union, elbows, and tees to meet project needs across India, Africa, Europe, UAE, and other global markets.
Which industries commonly use Incoloy 800 tube fittings?
They are widely used in chemical processing, petrochemical, power generation, marine, and nuclear industries due to their high-temperature strength and corrosion resistance.
How resistant are Incoloy 800 tube fittings to corrosion?
Incoloy 800 fittings resist oxidation, carburization, and chloride-induced corrosion, ensuring durability in harsh industrial environments worldwide.
Do you supply Incoloy 800 tube fittings internationally?
Yes, as a certified manufacturer, supplier, and exporter, we provide Incoloy 800 tube fittings across India, Africa, Europe, UAE, and other worldwide markets with reliable quality and timely delivery.
Can Mcneil Instruments provide customized Incoloy 800 Tube Fittings for projects in the USA, Turkey, and Nigeria?
Yes. Mcneil Instruments offers Incoloy 800 Tube Fittings in different sizes, wall thicknesses, and connection configurations, including tube-to-male, female, union, elbow, and tee fittings. The fittings are suitable for industrial projects across international markets, including the USA, Turkey, and Nigeria.