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YG8 Tungsten Carbide Button K20 K30 K40 Medium or coarse Grain size
1. Description:
YG4C Mainly used as small buttons for percussion bits to cut soft and medium hard formations.
Our advantage of making tungsten carbide button bits is that we are using HIP sintering for minimizing the
porosity of carbide blank for increasing the transverse rupture strength (TRS). It is very suitable for high
quality requirement for making carbide buttons to be used in high and medium pressure DTH Drilling. As
its unique working performance, tungsten carbide button bits are widely applied to oil filed drilling and snow
removal, snow plough machines or equipments.
--Dimension: diameter from 8-22mm, length from 10-30mm;
--HIP sintering;
--ground and unground;
2. Grade and Applications:
| Grades | Density g/cm³ | T.R.S Mp α | Hardness HRA | Performance &application recommended | Approx grades in China |
| MK4 | 15.1 | 1800 | 90.0 | Mainly used as small buttons for percussion bits to cut soft and medium hard formations. | YG4C |
| MK6 | 14.9 | 2100 | 90.0 | 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 | 87.0 |  Sell
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