Equipment goods
Percussive Drill Bit |
Grade
|
Density (g/cm3)
|
Hardness
(HRA)
|
TRS
(MPa)
|
YG11C
|
14.40
|
87.00
|
2850
|
YK15
|
14.60
|
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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