ASTM B366 Inconel 800HT Buttweld Fittings are high-performance nickel-iron-chromium alloy pipe fittings designed for high-temperature and high-pressure applications. These fittings are widely used in industries where strength, oxidation resistance, and long service life are critical.
We manufacture, supply, and stock a complete range of Incoloy 800HT Buttweld Pipe Fittings in compliance with ASTM B366 / ASME SB366 standards, offering reliable solutions for demanding industrial environments. With years of hands-on manufacturing experience, we understand how these fittings perform in real-world conditions— especially in heat-intensive operations.
What is Inconel / Incoloy 800HT?
Incoloy 800HT (also known as UNS N08811 or DIN 1.4959) is a high-temperature alloy developed for applications requiring excellent creep strength, oxidation resistance, and carburization resistance.
Unlike standard alloys, 800HT contains controlled amounts of aluminum, titanium, and carbon, which significantly improve its mechanical strength at elevated temperatures—typically above 600°C.
Because of these properties, Inconel 800HT Buttweld Fittings are commonly used in:
- Heat exchangers
- Petrochemical processing
- Power generation plants
- Fertilizer and ammonia plants
- Furnace components
- Oil & gas pipelines
ASTM B366 Incoloy 800HT® Buttweld Fittings – Overview
ASTM B366 Incoloy 800HT® Buttweld Fittings are produced from seamless or welded pipes and shaped into fittings such as elbows, tees, reducers, caps, and stub ends. These fittings are designed for full-penetration welding, ensuring leak-proof and long-lasting pipeline joints.
We supply:
- Alloy 800HT Butt Weld Fittings
- Alloy 800HT® Butt Weld Pipe Fittings
- Incoloy 800HT Seamless Buttweld Fittings
- Incoloy 800HT® Welded Butt Weld Fittings
Each fitting is manufactured with strict quality control to meet both dimensional accuracy and performance reliability.
Range of Inconel 800HT Buttweld Fittings We Offer
As a specialist manufacturer of Incoloy 800HT Buttweld Fittings, our product range includes:
- ASME SB366 800HT Alloy Pipe Elbow (45°, 90°, 180°)
- Incoloy UNS N08811 Butt Weld Elbow
- Incoloy 800HT Buttweld Tee (Equal & Reducing)
- Incoloy 800HT Reducer (Concentric & Eccentric)
- ANSI B16.9 Alloy 800HT Stub End
- Incoloy 800HT Pipe Cap
- Incoloy DIN 1.4959 Buttweld Fitting
These fittings are available in standard and custom sizes to match project-specific requirements.
Applications of Incoloy 800HT Pipe Fittings
Our Incoloy 800HT Pipe Fittings are widely used in:
- Oil & gas processing units
- Petrochemical plants
- Power generation & thermal plants
- Fertilizer & chemical industries
- Heat treatment furnaces
- Refineries and offshore platforms
Specifications Chart – ASTM B366 Inconel 800HT Buttweld Fittings
| Specification | Details |
|---|---|
| Standard | ASTM B366 / ASME SB366 |
| Material Grade | Incoloy 800HT |
| UNS Number | N08811 |
| DIN / Werkstoff | 1.4959 |
| Size Range | ½” NB to 48” NB |
| Schedule | SCH 10 to SCH XXS |
| Manufacturing Type | Seamless / Welded |
| Heat Treatment | Solution Annealed |
| End Connection | Buttweld |
| Testing | PMI, NDT, Hydro, Mechanical |
Chemical Composition Chart – Incoloy 800HT
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 30.0 – 35.0 |
| Chromium (Cr) | 19.0 – 23.0 |
| Iron (Fe) | Balance |
| Carbon (C) | 0.06 – 0.10 |
| Aluminum (Al) | 0.15 – 0.60 |
| Titanium (Ti) | 0.15 – 0.60 |
| Manganese (Mn) | ≤ 1.50 |
| Silicon (Si) | ≤ 1.00 |
| Sulfur (S) | ≤ 0.015 |
Mechanical Properties Chart – Alloy 800HT
| Property | Value |
|---|---|
| Tensile Strength | ≥ 450 MPa |
| Yield Strength (0.2% Offset) | ≥ 170 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 200 HB |
| Creep Resistance | Excellent |
| Oxidation Resistance | Up to 1100°C |
Why Choose Inconel 800HT Buttweld Fittings?
Inconel 800HT Buttweld Fittings offer several performance advantages:
- High temperature strength – maintains mechanical integrity under heat Oil & gas processing units
- Oxidation & carburization resistance – ideal for furnace and heat exchanger use
- Excellent weldability – suitable for complex piping systems
- High temperature strength – maintains mechanical integrity under heatOil & gas processing units
- Long service life – reduced maintenance and downtime
- Superior creep resistance – ideal for continuous high-temperature operations
These benefits make Incoloy 800HT Pipe Fittings a trusted choice across heavy industries.
Incoloy 800HT Buttweld Fittings Supplier & Stockholder in India
We are a reliable Incoloy 800HT Fittings Manufacturer, Supplier, and Stockholder in India, maintaining ready stock for urgent project requirements. We also serve as:
- Inconel 800HT Buttweld Fittings Manufacturer & Supplier in India
- Inconel 800HT Buttweld Fittings Suppliers
- Incoloy 800HT Butt Weld Fittings Dealer
- Incoloy NCF 800HT Reducer Stockist
- Incoloy 800HT Pipe Cap Supplier in Mumbai, India
- Incoloy 800HT® Welded Butt Weld Fittings Distributor in India
If you are looking for ASTM B366 Inconel 800HT Buttweld Fittings that deliver strength, reliability, and long-term performance, our solutions are engineered to meet real industrial challenges. Backed by manufacturing experience, strict quality control, and technical expertise, we supply fittings that industries trust for high-temperature applications.
Request Your ASTM B366 Inconel 800HT Buttweld Fittings Quote Today!
