# Incoloy 800H

*N08810 · NS1102*

> Solution-annealed Incoloy 800 with enhanced high-temperature creep strength.

Incoloy 800H is the controlled carbon variant of Incoloy 800 with enhanced high-temperature creep and stress-rupture properties. The solution-annealed condition with controlled grain size (ASTM 5 or coarser) delivers superior performance in ASME Section III and Section VIII pressure vessel applications above 600°C.

## Key features

- Enhanced creep strength vs 800
- Controlled carbon for carburization resistance
- ASME nuclear/pressure vessel qualified
- Good structural stability
- Superior to 800 above 600°C

## Applications

- ASME pressure vessels
- High-temperature heat exchangers
- Steam methane reformers
- Ethylene cracking furnaces
- Power plant superheaters

## Standards

- ASTM B163
- ASTM B407
- ASME SB-163
- ASME Section III/VIII