Ferritic heat-resistant
1.4720
TP 409
X7CrTi12
Titanium-stabilised ferritic heat-resistant steel, used mainly in automotive exhaust and heat-recovery components.
Chemical composition
mass %| Element | Content |
|---|---|
| CCarbon | ≤0.08 |
| SiSilicon | ≤0.1 |
| MnManganese | ≤1 |
| PPhosphorus | ≤0.04 |
| SSulphur | ≤0.03 |
| CrChromium | 10.5–12.5 |
| TiTitanium | 6×C – 1.0 |
Mechanical properties
room temperature- Scaling temperature (°C)
- 800
Standard equivalences
- DIN/EN
- X7CrTi12
- AISI
- 409
Typical applications
- Heat exchangers
- Exhaust/silencer tubing
- Air preheaters
- Recuperators
Frequently asked questions
What is 1.4720 (TP 409)?
1.4720 (X7CrTi12) — Ferritic heat-resistant. Titanium-stabilised ferritic heat-resistant steel, used mainly in automotive exhaust and heat-recovery components.
Which grades are equivalent to 1.4720?
1.4720 corresponds to EN X7CrTi12; equivalent designations: AISI 409.
Related grades
Indicative values — verify against the applicable standard before specifying.
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