Chemical composition

Physical properties

Material properties

UNS J95705/ UNS N08705 designated as ASTM A297 Grade HP, is a high-chromium, high-nickel austenitic stainless steel formulated for casting. Known for its 26Cr-35Ni composition, this alloy is distinguished by its excellent high-temperature strength and corrosion resistance. It performs well in severe thermal environments, maintaining mechanical integrity under high stress and temperatures up to 2010°F (1100°C). The alloy's resilience against carburization and oxidation is particularly valued in industrial and aerospace applications.

Advantage

1. Superior high-temperature corrosion and oxidation resistance.
2. Maintains strength and stability under extreme heat.
3. Resists carburization and thermal degradation.
4. Ideal for casting due to excellent fluidity.
5. Ensures longevity in harsh environmental conditions.

Application

UNS N08705 is extensively used in the chemical processing, petrochemical, and energy sectors. It's ideal for furnace parts, heat exchangers, and other components that are subjected to extreme temperatures and corrosive conditions. The alloy's properties make it suitable for long-term applications where reliability and performance at high temperatures are critical.