Incoloy 800

Key Features:

  1. Incoloy 800 exhibits outstanding general corrosion resistance
  2. Ideal for high temperature composite applications
  3. High creeping and stress corrosion cracking resistance
  4. Prevents carburization, oxidation and nitridation
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About Incoloy 800

Incoloy 800 is a Nickel-Iron-Chromium super alloy that offers potential resistance to high temperature oxidation and carburization. It was further  modified into Alloy 800H by lowering carbon content to 0.05 – 0.10 % which is further modified to 800HT by including titanium and aluminum to provide suitable high temperature characteristics.

Incoloy alloy 800 is highly resistant to chloride stress corrosion cracking and embrittlement. It has moderate high temperature strength and is certainly useful for petrochemical industry that includes long term operations up to 649oC or 1200oF.

Incoloy 800 covers ASME code up to 816oC, it offers superior oxidation resistance and is significant for service at the elevated temperatures in the non-ASME coded operations.

Industrial Nomenclatures: Ferrochronin® 800, Nickelvac® 800, Nicrofer® 3220, UNS N08800

Incoloy 800 Specification

Wire Sheet Strip Pipe Fittings Rod
AWS A5.11 ENiCrFe-2, AWS A5.14 ERNiCr-3, ASTM B408, AMS 5766, ISO 9723, ASTM B409, AMS 5877, BS 3072NA15, BS 3073NA15, VdTüV 412 & 434, DIN 17460, EN 10028-7, EN 10095 ASTM B407, ASTM B829, ASTM B514, ASTM B775, ASTM B515, ASTM B751, BS3 3074NA15, ISO 6207, DIN 17459, VdTüV 412 & 434 ASTM B366 ISO 9724, BS 3076NA15, BS 3075NA15, EN 10095, VdTüV 412 & 434

Incoloy 800 Applications

Ethylene furnace quench boilers, hydrocarbon cracking, valves, fittings, industrial furnace components, heat processing apparatus, chemical and petrochemical processing units, pressure containers and tubes, heat exchanger parts and pipes, carburizing fixtures and retorts, Ammonia effluent cooler, superheater and reheater components in production units.

Incoloy 800 is used in the chemical plants for components of heat exchangers and transmission pipes of nitric acid solutions that need to prevent attack of chloride stress corrosion cracking. In the power production plants, the alloy is used in super-heater and re-heater tubes.

Incoloy 800 Processing

Forming: Alloy 800 is formable by the entire traditional forming methods due to its fine ductility. Use of strong tooling is recommended. Heavy duty lubricants are used while cold forming. It is important to fully remove the lubricant remainders subsequent to forming to prevent the risk of embrittlement.

Welding: Alloy 800 can be easily welded with common welding methods. Convex weld beads should be used. Remove oil, paint or crayon spots.  Gas tungsten arc welding, gas metal arc welding and submerged arc welding are the commonly used joining methods for this super alloy.

Forms Produced

Incoloy 800 Wire Incoloy 800 Wire Mesh
Incoloy 800 Strip Incoloy 800 Sheet
Incoloy 800 Rod Incoloy 800 Pipe
Incoloy 800 Flanges Incoloy 800 Foil


Heanjia Super Metals, America offers all forms of Incoloy 800 in all standard as well as custom specifications.