| Les compositions chimiques : % | |||||
| C | Cr | Ni | W | Al | Ti |
| <0,10 | 14.0~16.0 | 34.0~38.0 | 4.0~7.0 | 1.5~2.0 | 3.0~4.0 |
| Fe | B | Mn | Si | S | P |
| Reste | 0.05~0.10 | ≤0,5 | ≤0,5 | ≤0,015 | ≤0,015 |
| Conductivité thermique : | ||||||||
| Θ/ºC | 100 | 200 | 300 | 400 | 500 | 600 | 700 | 800 |
| Λ/W/(m@ºC) | 10,89 | 12.14 | 13.40 | 14,65 | 15,91 | 17,58 | 18,84 | 20,52 |
| Coefficient de dilatation linéaire : | ||||
| Θ/ºC | 20~100 | 20~200 | 20~300 | 20~400 |
| L'α/(10 -6 ºC -1 ) | 12.36 | 13,98 | 15.22 | 15.32 |
| Θ/ºC | 20~500 | 20~600 | 20~700 | 20~800 |
| L'α/(10 -6 ºC -1 ) | 15.97 | 16.35 | 17.16 | 18,61 |