Properties of alloy 800 series (800, 800H, 800HT)

Ni: 30-35
Cr: 19-23
Fe: 39.5-42.5
Al: 0.15-0.60
Ti: 0.15-0.60
C: ≤ 0.10
Cu: ≤ 0.75

Small amounts of other elements like manganese, silicon, sulfur, and phosphorus.

General Corrosion Resistance: Alloy 800 exhibits good resistance to general corrosion in various environments, including atmospheric, aqueous, and alkaline conditions.

Oxidation Resistance: It provides excellent resistance to high-temperature oxidation, making it suitable for applications in high-temperature and oxidative environments.

Carburization and Nitridation Resistance: Alloy 800 is highly resistant to carburization and nitridation at elevated temperatures, which is important for applications in carbon-rich and nitrogen-rich atmospheres.

Sulfur-Containing Environments: It shows good resistance to sulfur-containing atmospheres, making it suitable for applications in industries where sulfur compounds are present.

Chloride-Ion Stress Corrosion Cracking (SCC) Resistance: Alloy 800 offers good resistance to chloride-ion stress corrosion cracking, making it suitable for applications in chloride-rich environments.

Alloy 800 is commonly used in various applications, including furnace components, heat exchangers, petrochemical processing, chemical processing, power generation, and aerospace industry.