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|
Grade
|
Density (g/cm3)
|
Hardness
(HRA)
|
TRS
(MPa)
|
|
YG11C
|
14.40
|
87.00
|
2850
|
|
YK15
|
14.6 |
87.6
|
2700 |
| YK15.6 | 14.6 | 87.6 | 2700 |
| YK20 | 14.52 | 87.3 | 2650 |
| YK20.2 | 14.45 | 88 | 2700 |
| YK25.6 | 14.58 | 87.5 | 2650 |
| Grade |
Applications recommended
|
| YG11C |
Suitable for embedding rotary percussive drill bits of heavy rock drilling machines for drilling hard
formations of class f=18 or above
|
| YK15 |
Suitable for embedding rotary percussive drill bits of light rock drilling machines for drilling
medium rock formations of class f=14-15
|
| YK15.6 |
Suitable for embedding rotary percussive drill bits of medium rock drilling machines for drilling
medium to hard rock formations of class f=14-15
|
| YK20 |
Suitable for embedding rotary percussive drill bits of medium rock drilling machine for drilling hard
rock formations of class f=18 or above.
|
| YK20.2 |
It combines the advantages of the wear resistance of YK15.6 and toughness of YK20 with rather
good stability. The product is suitable for drilling rock formations of class 15-17.
|
| YK25.6 |
With a unique structure, it has a higher lifetime and drilling speed. It is suitable for embedding
rotary drill bits of medium drilling machines for drilling medium hard and rather hard rock
formations of class f=14-16
|
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