TCVN 12142-15
TCVN 12142-15 (Heat-treatable steels, alloy steels and free-cutting steels - Part 15: Valve steels for internal combustion engines)· TCVN (Vietnam) · 11 materials
| Designation | Material group | |
|---|---|---|
| NiCr 15 Fe 7 TiAl | Nickel | chevron_right |
| NiCr 20 TiAl | Nickel | chevron_right |
| NiFe 25 Cr 20 NbTi | Nickel | chevron_right |
| X 33 CrNiMnN 23 8 | Stainless steels | chevron_right |
| X 45 CrSi 9 3 | Structural and constructional steels | chevron_right |
| X 50 CrMnNiNbN 21 9 | Stainless steels | chevron_right |
| X 50 CrSi 8 2 | Structural and constructional steels | chevron_right |
| X 53 CrMnNiN 21 9 | Stainless steels | chevron_right |
| X 53 CrMnNiNbN 21 9 | Stainless steels | chevron_right |
| X 55 CrMnNiN 20 8 | Stainless steels | chevron_right |
| X 85 CrMoV 18 2 | Stainless steels | chevron_right |