High-temperature steels / aviation variant
High-temperature aviation steels are heat-resistant materials designed to retain strength and structural stability during prolonged exposure to elevated temperatures. Their alloying provides resistance to creep, oxidation, and thermal degradation, making them suitable for aircraft engine and other hot-section components.
| Grade | Material no. | C | Si | P | S | Cr | Mn |
|---|---|---|---|---|---|---|---|
| X8CrCoNiMo10-6 | 1.4911 | 0,05-0,12 | 0,10-0,80 | 0,025 | 0,015 | 9,80-11,2 | 0,30-1,30 |
| 1.4914 | 1.4914 | 0,11-0,19 | 0,15-0,65 | 0,03 | 0,025 | 10,0-12,0 | 0,20-1,25 |
| 1.4934 | 1.4934 | 0,18-0,26 | 0,15-0,40 | 0,035 | 0,035 | 10,5-12,5 | 0,40-0,70 |
| X12CrNiMo12 | 1.4939 | 0,08-0,13 | ≤0,35 | 0,025 | 0,02 | 11,0-12,5 | 0,50-0,90 |
| X6NiCrTiMoV26-15 | 1.4944 | ≤0,08 | ≤1,00 | 0,025 | 0,015 | 13,5-16,0 | ≤2,00 |
| R30155 | 1.4974 | 0,08-0,16 | ≤1,00 | 0,04 | 0,03 | 20,0-22,5 | 1,00-2,00 |
| S31600 | 1.4984 | 0,04-0,10 | 0,30-0,60 | 0,045 | 0,03 | 15,5-17,5 | ≤1,50 |
| NiCr20Ti | 2.4630 | 0,08-0,15 | ≤1,00 | 0,03 | 0,02 | 18,0-21,0 | ≤1,00 |
| NiCr20TiAl | 2.4631 | 0,04-0,10 | ≤1,00 | 0,03 | 0,015 | 18,0-21,0 | ≤1,00 |
| NiCr20Co18Ti | 2.4632 | ≤0,13 | ≤1,00 | 0,02 | 0,015 | 18,0-21,0 | ≤1,00 |
| NiCo20Cr15MoAlTi | 2.4634 | 0,12-0,17 | ≤1,00 | 0,045 | 0,015 | 14,0-15,7 | ≤1,00 |
| CoCr20W15Ni | 2.4964 | 0,05-0,15 | ≤0,40 | 0,02 | 0,015 | 19,0-21,0 | ≤2,00 |
Standards covering this category
11Property ranges
3| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| HB | — | 230 | 230 | 1 |
| HRC | — | 32 | 32 | 1 |
| rho | g/cm³ | 7.85 | 9.1 | 12 |
Derived from 12 grades in this category with a recorded value.
Composition range
20| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| B | % | 0.003 | 0.02 | 5 |
| C | % | 0.04 | 0.26 | 12 |
| N | % | 0.02 | 0.2 | 4 |
| Al | % | 0.35 | 4.9 | 4 |
| Si | % | 0.1 | 1 | 12 |
| P | % | 0.02 | 0.045 | 12 |
| S | % | 0.015 | 0.035 | 12 |
| Ti | % | 0.2 | 3 | 5 |
| V | % | 0.1 | 0.7 | 5 |
| Cr | % | 9.8 | 22.5 | 12 |
| Mn | % | 0.2 | 2 | 12 |
| Fe | % | 1 | 5 | 5 |
| Co | % | 2 | 57.915 | 7 |
| Ni | % | 0.2 | 81.67 | 12 |
| Cu | % | 0.2 | 0.5 | 4 |
| Zr | % | 0.15 | 0.15 | 2 |
| Nb | % | 0.1 | 1.25 | 3 |
| Mo | % | 0.4 | 5.5 | 8 |
| W | % | 0.4 | 16 | 4 |
| Pb | % | 0.005 | 0.005 | 1 |
Derived from 12 grades in this category with a recorded value.