Austenitic heat-resistant
1.4841
TP 314
X15CrNiSi25-21
Heat-resistant austenitic Cr-Ni steel with good scaling resistance and high hot strength, for duty needing both oxidation resistance and mechanical load capacity.
Chemical composition
mass %| Element | Content |
|---|---|
| CCarbon | ≤0.2 |
| SiSilicon | 1.5–2.5 |
| MnManganese | ≤2 |
| PPhosphorus | ≤0.045 |
| SSulphur | ≤0.03 |
| CrChromium | 24–26 |
| NiNickel | 19–22 |
Mechanical properties
room temperature- Scaling temperature (°C)
- 1150
Standard equivalences
- DIN/EN
- X15CrNiSi25-21
- AISI
- 314
- UNS
- S31400
- AFNOR
- Z12 CNS 20.20
- BS
- 314 S25
- PN
- H25N20S2
Typical applications
- Industrial furnace and apparatus construction
- Thermowell tubes
- Steelworks and smelters
- Air preheaters, recuperators, furnace tubes
Frequently asked questions
What is 1.4841 (TP 314)?
1.4841 (X15CrNiSi25-21) — Austenitic heat-resistant. Heat-resistant austenitic Cr-Ni steel with good scaling resistance and high hot strength, for duty needing both oxidation resistance and mechanical load capacity.
Which grades are equivalent to 1.4841?
1.4841 corresponds to EN X15CrNiSi25-21; equivalent designations: AISI 314, UNS S31400, AFNOR Z12 CNS 20.20, BS 314 S25, PN H25N20S2.
Related grades
Indicative values — verify against the applicable standard before specifying.
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