Incoloy 800HT High Temperature Alloy Wire for Turbine Blades and Aerospace

Incoloy 800HT wire is a premium-grade high-temperature alloy specifically
engineered to withstand extreme thermal conditions and mechanical stress. Ideal
for use in turbine blades and aerospace engine components, this wire excels in
critical applications where durability and performance are essential.
Manufactured from a nickel-iron-chromium superalloy, it meets the stringent
requirements of industries requiring prolonged exposure to high temperatures.

Key Features of Incoloy 800HT Wire
Superior Creep Resistance: With a high carbon content and a controlled
aluminum/titanium ratio, Incoloy 800HT wire is optimized to resist time-
dependent deformation at elevated temperatures (600-900°C).

Oxidation & Carburization Resistance: The alloy forms a dual-layer oxide
(Cr₂O₃-Al₂O₃) that prevents scaling and carbon ingress, even in hydrocarbon-rich
environments.

Phase Stability: Incoloy 800HT retains its austenitic structure even after
prolonged thermal exposure, preventing detrimental sigma-phase embrittlement.

High Mechanical Strength: The tensile strength of 550-750 MPa at 800°C,
coupled with a long creep rupture life of over 10,000 hours at 700°C/100 MPa,
ensures reliability under stress.

Thermal Fatigue Resistance: The alloy’s low coefficient of thermal expansion
reduces stress during cyclic heating, making it highly resistant to thermal
fatigue.

Fabrication Flexibility: Compatible with various welding techniques (TIG,
laser, electron beam) and adaptable to cold-forming processes.

Applications of Incoloy 800HT Wire
Incoloy 800HT wire is used in various demanding industries, particularly where
high temperatures and mechanical stress are common. Its versatility makes it
ideal for applications in:

Petrochemical Industry: Ethylene cracking furnace tubes, pyrolysis coil
supports, and hydrogen reformer internals. It is also used in wire mesh for
sulfur recovery unit (SRU) components.

Power Generation: Incoloy 800HT is essential for gas turbine combustion liners,
exhaust ducting springs, superheater tube hangers, and nuclear reactor control
rod drive mechanisms.

Heat Treatment Industry: Fixtures for carburizing furnaces, annealing trays,
and quenching basket assemblies benefit from the alloy’s heat resistance.

Aerospace: The alloy is used in afterburner flame holders, turbine seal rings,
and rocket engine injector elements, making it an indispensable material in
aerospace technology.

Chemical Processing: Catalyst carrier grids for nitric acid plants and syngas
reactors are enhanced by the high temperature resistance of Incoloy 800HT.

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