RECOMMENDED GRADES AND PROPERTIES
| Grade | Content Co / wt% | Hardness (HRA) | Density (g/cm²) | Traverse rupture strength (Mpa) | Applications |
| GK0605 | 6 | 90,0 | 14,95 | 2600 | Suitable for production of small and medium size drill bits for drilling medium hard rock stratum hardness F10 to F14. |
| GK0803 | 8 | 89,5 | 14,65 | 3100 | Suitable for production of chopping bits and DTH bits for drilling of medium hard rock stratum hardness under F16. |
| GK0805 | 8 | 90,0 | 14,65 | 2800 | Suitable for production of small and medium size drill bits for drilling soft and medium hard rock stratum hardness under F10. Mainly used in oil and coal industries. |
| GK0905 | 9 | 89,0 | 14,50 | 2700 | Suitable for drilling medium hard rock stratum hardness under F12 or under F14 in case they are used for production of spherical crown button bits. |
| GK1005 | 10 | 88,0 | 14,35 | 2900 | Suitable for production of impact bits and DTH bits for drilling medium hard rock stratum hardness under F14 or hard rock stratum hardness under F16 in case they are used for production of spherical crown button bits. |
| GK1006 | 10 | 87,5 | 14,35 | 2500 | Suitable for production of coal cutter bits and drilling rock stratum with hard rock seam hardness F3 to F6. |
| GK1105 | 11 | 87,0 | 14,30 | 2850 | Suitable for production of impact bits and DTH bits for drilling medium hard rock stratum hardness under F15 and production of cutting pick for drilling rock stratum hardness F6 to F10. |
| GK1205 | 12 | 87,0 | 14,20 | 2800 | Suitable for production of impact bits and DTH bits for drilling medium hard rock stratum hardness under F15 and production of cutting pick for drilling rock stratum hardness F6 to F10. |
| GK1304 | 13 | 89,0 | 14,20 | 3800 | Suitable for production of impact bits and DTH bits for drilling medium hard rock stratum hardness under F15 and production of cutting pick for drilling rock stratum hardness F6 to F10. |
| GK1305 | 13 | 86,5 | 14,15 | 3850 | Suitable for production of impact bits and DTH bits for drilling medium hard rock stratum hardness under F15 and production of cutting pick for drilling rock stratum hardness F6 to F10. |
| GK1505 | 15 | 86,5 | 14,05 | 3300 | Universal use. Suitable for production of any kinds of conic bits for drilling any kinds of rock stratum. |
| GKF1505 | 15 | 87,0 | 14,00 | 3550 | Universal use. Suitable for production of any kinds of conic bits for drilling any kinds of rock stratum. |
| GK1605 | 16 | 86,0 | 13,90 | 3500 | Universal use. Suitable for production of any kinds of conic bits for drilling any kinds of rock stratum. |
