Product Specification

1. Incoloy 800H High Temperature & Corrosion Resistant Nickel-Iron-Chromium Alloy Bar

Products Specification

Incoloy 800H High Temperature & Corrosion Resistant Nickel-Iron-Chromium Alloy Bar

1. Chemical Composition

2. Mechanical Properties

3. Product Standards

• ASTM B408: Standard Specification for Nickel-Iron-Chromium Alloy (Incoloy 800, 800H, 800HT) Bars and Rods
   
  This is the primary standard for Incoloy 800H bars, covering chemical composition, mechanical properties, dimensional tolerances, and quality control requirements.
• ASME SB408: Boiler and Pressure Vessel Code (BPVC) Specification
   
  Used for bars intended for pressure-containing components in boilers, reactors, and other pressure vessels.
• DIN EN 10095: European Standard for Heat-Resisting Steels and Alloys (for bars used in European markets).
• JIS G4902: Japanese Industrial Standard for Nickel-Based Heat-Resisting Alloys (relevant for Asia-Pacific applications).

4. Product Advantages

• Exceptional High-Temperature Stability: Maintains strength and structural integrity at temperatures up to 870°C (1600°F), with excellent creep and stress-rupture resistance—critical for long-term service in furnaces, reactors, and turbine components.
• Superior Corrosion & Oxidation Resistance: The chromium-aluminum-titanium content forms a dense, adherent oxide layer that protects the alloy from oxidation, sulfidation, and carburization in harsh media (e.g., flue gases, petrochemical streams, and high-temperature water).
• Excellent Ductility & Fabricability: Despite its high strength, Incoloy 800H offers good ductility at room temperature, enabling easy machining, welding, and forming into complex shapes (e.g., bolts, shafts, and heat exchanger tubesheets).
• Stable Chemical Composition: Strict control over carbon, titanium, and aluminum levels ensures consistent performance across batches, reducing the risk of premature failure in critical applications.
• Versatility: Performs well in both oxidizing and slightly reducing environments, making it suitable for a wide range of industries (energy, petrochemical, aerospace, and more).

5. Related Products

• Incoloy 800 Round Bars/Rods: Lower carbon content (0.03-0.10 wt%) than 800H, suitable for moderate-temperature corrosion-resistant applications (up to 760°C/1400°F).
• Incoloy 800HT Round Bars/Rods: Higher carbon, aluminum, and titanium content than 800H, optimized for ultra-high-temperature creep resistance (up to 980°C/1800°F).
• Incoloy 800H Sheets/Plates: Used for fabricating furnace liners, heat exchanger shells, and pressure vessel components.
• Incoloy 800H Pipes/Tubes: Ideal for high-temperature fluid transport in petrochemical plants and power generation facilities.
• Incoloy 800H Forgings: Custom-forged components (e.g., valves, flanges, and fittings) for heavy-duty industrial applications.

6. Applications

• Energy Industry: Boiler tubes, superheater tubes, turbine blades, and nuclear reactor components (due to resistance to high-temperature water and radiation-induced corrosion).
• Petrochemical Industry: Reactor vessels, catalyst support grids, heat exchanger tubesheets, and piping for processing high-temperature hydrocarbons (resistant to sulfidation and carburization).
• Aerospace Industry: Engine components (e.g., combustion chambers, exhaust manifolds) and aircraft structural parts that operate at elevated temperatures.
• Metallurgical Industry: Furnace rollers, annealing 炉 fixtures, and heat treatment baskets (resistant to oxidation and thermal cycling).
• Chemical Industry: Pressure vessels, agitators, and valves for handling corrosive chemicals (e.g., acids, alkalis) at high temperatures.