Austenitic heat-resistant
1.4877
TP 32/27 (AC 66)
X5NiCrCeNb32-28
High-chromium cerium-bearing austenitic (AC 66) with outstanding high-temperature corrosion resistance; low Si and Al limit internal oxidation, strong in carburising and sulphur-bearing atmospheres.
Chemical composition
mass %| Element | Content |
|---|---|
| CCarbon | 0.04–0.08 |
| SiSilicon | ≤0.3 |
| MnManganese | ≤1 |
| PPhosphorus | ≤0.045 |
| SSulphur | ≤0.03 |
| AlAluminium | ≤0.025 |
| CrChromium | 26–28 |
| NiNickel | 31–33 |
| CeCerium | 0.05–0.1 |
| NbNiobium | 0.6–1 |
Mechanical properties
room temperature- Scaling temperature (°C)
- 1000
Standard equivalences
- DIN/EN
- X5NiCrCeNb32-28
- AISI
- AC 66
- BS
- X6NiCrNbCe32-27
Typical applications
- Coal gasification and combined-cycle power plants
- Waste pyrolysis and incineration
- Combustion of petrochemical and chemical residues
- Fuel cells and high-temperature process control
Frequently asked questions
What is 1.4877 (TP 32/27 (AC 66))?
1.4877 (X5NiCrCeNb32-28) — Austenitic heat-resistant. High-chromium cerium-bearing austenitic (AC 66) with outstanding high-temperature corrosion resistance; low Si and Al limit internal oxidation, strong in carburising and sulphur-bearing atmospheres.
Which grades are equivalent to 1.4877?
1.4877 corresponds to EN X5NiCrCeNb32-28; equivalent designations: AISI AC 66, BS X6NiCrNbCe32-27.
Related grades
Indicative values — verify against the applicable standard before specifying.
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