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Φ8~22x10~30mm Tungsten Carbide Buttons for DTH button bits
Grade and Applications:
| Grades | Density | T.R.S | Hardness | Performance &application recommended | Approx grades in China | |
| g/cm³ | Mp α | HRA | ||||
| MK4 | 15.1 | 1800 | 90 | Mainly used as small buttons for percussion bits to cut soft and medium hard formations. | YG4C | |
| MK6 | 14.9 | 2100 | 90 | For coring crowns, electric coal drill bits, coal cutting picks, oil cone bits and scraping knife bits, used in geological prospecting, coal mining and oil well boring. | YG6 | |
| MK8 | 14.7 | 2400 | 89.5 | For coring crowns, electric coal drill bits, coal cutting picks, oil cone bits and scraping knife bits, used in geological prospecting, coal mining and oil well boring. | YG8 | |
| MK10 | 14.7 | 2450 | 88.5 | Mostly used as the buttons of small and medium sized percussion bits and as the inserts of rotary prospecting bits to cut soft and medium hard formations. | YG8C | |
| MK15 | 14.6 | 2450 | 87.8 | Suitable for strips, conical buttons for rotary percussion drill bits, geological prospecting buttons, cut soft and medium hard formations. | YK15 | |
| YG9C | ||||||
| MK20 | 14.4 | 2550 | 87 | Primarily for the buttons and inserts of rotary percussion bits to cut medium-hard and hard formations. | YK20 | |
| YG10C | ||||||
| MK25 | 14.5 | 2600 | 87.5 | Primarily for the buttons and inserts of rotary percussion bi 8 ~ 22x10 ~ 30mm Tungsten Carbide Buttons for DTH button bits |
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