Things to know
about carbides
about carbides
AF K40UF
AF K40UF is a submicron grade with 10% Co. It is characterized by both high hardness, high bending strength and high toughness. Suitable for diamond coatings. |
ISO-Range | K30 - K40 |
Chemical Data | |
Co (%) | 10 |
WC incl. Doping (%) | 90 |
Physical Data | |
Density (g/cm³) | 14,5 |
Hardness | |
HV 30 (N/mm²) | 1610 |
HRA | 91,9 |
Transverse Rupture Strength | |
(N/mm²) | > 4200 |
(1000 psi) | > 609 |
KIc* (Shetty) | |
(MNm-3/2) | 10,5 |
Metallogaphic Data | |
Porosity | |
A ≤ 10 µm | ≤ 02 |
B > 10 - 25 µm | 00 |
C | 00 |
Microstructure | |
Tungsten Carbide α | Ø 0,6µm |
Binding Phase β | unif. distr. |
Mixed Carbide γ | - |
Eta Phase η | - |