Incoloy 800 Alloy
General Characteristics of Incoloy 800 Alloy
Incoloy 800 Alloy has good high-temperature strength and is resistant to oxidation, carburization and other types of high temperature corrosion.
|Al + Ti||Aluminium + Titanium
The alloy is used in furnace components and equipment, petrochemical furnace cracker tubes, pigtails and headers, and sheathing for electrical heating elements.
Forging of this alloy is carried out between 2200/1600ºF (1200/870ºC): heavy forging is carried out in the range 2200/1850ºF (1200/1010ºC).
Chromium carbide precipitation will occur in the temperature range 1400/1000ºF (760/540ºC), thus parts should be cooled rapidly through this temperature range.
The alloy is annealed at temperatures between 1800/1900ºF (980/1040ºC). Parts should preferably be water quenched after annealing to avoid carbide precipitation.
Alloy 800 is readily machined by standard methods. Coated carbide tools or high-speed steel tools may be used depending upon machining operations and conditions used
The alloy may be welded by all processes. The alloy supplier should be consulted for a guide to electrodes and filler metals to be used. Parts to be welded should be clean and joint designs should be such that a minimum of stress may be set up during welding.
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