MHC Alloy
What is Molybdenum Hafnium Carbon Alloy (MHC alloy)?
MHC alloy, namely molybdenum hafnium carbon alloy, is to add Hf instead of Ti to form two-phase structure for molybdenum alloy strengthening.
MHC alloy performance and processing deformation degree is related to heat treatment conditions. MHC alloy usually produced by powder metallurgy spindle, when the forging deformation is 60%, at 950 ~ 1250 ℃ the tensile strength is high 20% than TZM and the direction elongation is 10%.
MHC alloys Classification
| Item | Prevaling Torque （N·m） |
Maximum Torque （N·m） |
Maximum Turnover Number（min-1） |
Inertia (kg·m2) |
Permissible Angular Misalignment |
Permissible Axial Direction Difference |
Mass (g) |
| MHC-27C | 1.8 | 3.6 | 10000 | 3.0X10-6 | 0.15 | 2° | 35.0 |
| MHC-35C | 4.0 | 8.0 | 10000 | 1.05X10-6 | 0.17 | 2° | 62.0 |
| MHC-40C | 7.0 | 14.0 | 10000 | 26X10-6 | 0.22 | 2° | 116.0 |
| MHC-45C | 10.0 | 20.0 | 10000 | 38X10-6 | 0.22 | 2° | 131.0 |
| MHC-50C | 16.0 | 32.0 | 10000 | 88X10-6 | 0.24 | 2° | 220.0 |
| MHC-57C | 26.0 | 52.0 | 10000 | 142.5X10-6 | 0.27 | 2° | 310.0 |
| MHC-68C | 62.0 | 14.0 | 10000 | 376X10-6 | 0.35 | 2° | 565.0 |
| MHC-82C | 100.0 | 00.0 | 10000 | 1080X10-6 | 0.55 | 2° | 1300.0 |
| MHC-95C | 180.0 | 360.0 | 10000 | 1940X10-6 | 0.55 | 2° | 1500.0 |
MHC specifications
| Item | A | L | W | Standard aperture D1 x D2 (Tolerance H8) Min D1 |
Standard aperture D1 x D2 (Tolerance H8) Min D2 |
M |
| MHC-27C | 27 | 11 | 35 | 5 | 10 | M3 |
| MHC-35C | 35 | 12 | 38 | 6 | 14 | M3 |
| MHC-40C | 40 | 15 | 48 | 8 | 16 | M4 |
| MHC-45C | 45 | 15 | 48 | 10 | 19 | M4 |
| MHC-50C | 50 | 20 | 62 | 12 | 22 | M5 |
| MHC-57C | 57 | 20 | 62 | 12 | 25 | M5 |
| MHC-68C | 68 | 24 | 74 | 14 | 32 | M6 |
| MHC-82C | 82 | 30 | 98 | 19 | 35 | M8 |
| MHC-95C | 95 | 30 | 98 | 22 | 45 | M8 |
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