Special Mining Grade Facts
Grade |
ISO Grade |
Density g/cm3 |
Hardness HRA> |
T.R.S>N/mm² |
Performances or recommended applications |
Special mining grade |
YK5 |
|
14.80-15.10 |
89.0 |
2060 |
With high toughness and good wear resistance, it is suitable mainly for buttons and inserts used in small and medium size percussion drill bits for drilling medium hard rock formations |
YK10 |
|
14.60-14.85 |
89.5 |
2260 |
With high toughness and good wear resistance, it is suitable mainly for buttons and inserts used in small and medium size percussion drill bits |
YK20 |
|
14.30-14.60 |
86.5 |
2350 |
With high toughness and good wear resistance, it is suitable mainly for embedding rotary percussive drill bits for drilling medium hard and rather hard rock formations |
YK25 |
|
14.35-14.70 |
87.0 |
2450 |
With high toughness and good wear resistance, it is suitable mainly for embedding rotary percussive drill bits for drilling medium hard and rather hard rock formations |
YK40 |
|
13.90-14.20 |
86.5 |
2450 |
With high toughness and good wear resistance, it is suitable mainly for embedding rotary percussive drill bits for drilling medium hard and rather hard rock formations |
YK45 |
|
13.80-14.20 |
86.0 |
2450 |
With high toughness and good wear resistance, it is suitable mainly for embedding rotary percussion drill bits for drilling medium hard and rather hard rock formations |
YK50 |
|
13.80-14.20 |
85.5 |
2450 |
With ultra high toughness and good wear resistance, it is suitable mainly for embedding button drill bits, tri-cone drill bits for drilling medium-hard and rather hard rock formations |