| Grade | Density
g/cm3 | Hardness
HRA | Strength
N/mm2 Min. | Applications |
| YG4C | 15.0~ 15.2 | 90 | 1900 | For geological exploration, coal excavation, inlayed bits; Good to drill the medium hard sandstone, the soft-hard alternant rock. |
| YG8C | 14.6~ 14.8 | 88.5 | 2300 | For rotary-percussive rock drill bits for medium hard and hard rock; and also for cutter teeth and oil drill bits for cutting hard stone containing formations. |
| YG9C | 14.45~14.65 | 88.2 | 2500 | For mining tips, button of rotary-percussive bits, also for button of Mining purpose cone drill, for soft and medium hard rock. |
| YG10C | 14.35~14.55 | 87.7 | 2600 | For mining tips, button of rotary-percussive bits, also for button of Mining purpose cone drill, for medium hard and hard rock. |
| YG11C | 14.20~14.4 | 87 | 2600 | For tipping of bits for heavy rock drills and rotary-percussive rock drills used in hard rock formations; e.g.: latent hole drills and deep-hole drills, rock drills, etc. |
| YG13C | 14.05~14.25 | 86.7 | 2700 | For oil cone drills for hard and medium hard rock; also for tipping bits of rotary-percussive rock drills and heavy rock drills. |
| YG15 | 13.95~14.15 | 88 | 2300 | Top strength and less wear resistance, for bits of rotary-percussive rock drills and heavy rock drills, for hard and very hard rocks. |
| YG15C | 13.9~14.1 | 85.7 | 2700 | For cone drills for any kind of rock formations. |
| ZD10U | 14.85~14.95 | 90.2 | 230 | For medium and small size button of drill bits, latent hole drills used in soft and medium hard terrane. |
| ZD15 | 14.65~14.85 | 89.2 | 2400 | For button of impact drill bits and latent hole drills, for medium hard and hard rocks. |
| ZD30 | 14.35~14.6 | 87.6 | 2600 | For mining tips, button of rotary-percussive bits, and button of mining purpose cone drill, for medium hard and hard rock. |
| ZD30.2 | 14.65~14.85 | 87.4 | 2500 | For mining tips, button of rotary-percussive bits, and button of mining purpose cone drill, for medium hard and hard rock. |
