- C-steel grades to 427°C (800°F)
- Cr-Mo steel grades to 570°C (1058°F)
- Stabilized austenitic steel grades to 600°C (1112°F); stabilized austenitic stainless steel is required to avoid intercrystalline corrosion
- Nickel-based alloys for temperatures exceeding 600°C (1112°F)