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Grades and Properties |
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Grades |
Cobalt content |
Density |
HRA |
Abrasion resistance |
Mpa |
Grain structure |
Main use |
|
RK06 |
6 |
14.88 - 15.02 |
89.8 - 91.0 |
14.5 |
≥2800 |
Medium |
Can be used for making buttons of DTH bits and rock tools. For drilling medium and hard rocks. RK06 is better in abrasion resistance than RK06C and better in toughness than RK06A. |
|
RK06N |
6 |
14.88 - 15.02 |
89.8 - 91.0 |
16 |
≥2800 |
Medium |
Can be used for making buttons of DTH bits and rock tools. For drilling medium and hard rocks. RK06N is better in abrasion resistance than RK06 and better in toughness than RK06A. |
|
RK06A |
6 |
14.88 - 15.02 |
90.0 - 91.2 |
15.5 |
≥2800 |
Medium |
Can be used for making buttons of DTH bits, thread rock bits and ring bits. For drilling medium and hard rocks. RK06A is better in abrasion resistance than RK06, RK08A and better in toughness than RK06X. |
|
RK06C |
6 |
14.88 - 15.02 |
89.4 - 90.8 |
14 |
≥2800 |
Coarse |
Can be used for making buttons of DTH bits and rock tools. For drilling interlaced soft & hard rocks and interlayer rocks. RK06C is better in abrasion resistance than RK08 and better in toughness than RK06. |
|
RK06X |
6 |
14.88 - 15.02 |
90.5 - 91.5 |
16.5 |
≥2700 |
Fine |
Can be used for making buttons of DTH bits and rock tools. For drilling medium and soft rocks. RK06X is better in abrasion resistance than RK0A6. |
|
RK06CX |
6 |
14.88 - 15.02 |
91.5 - 93.0 |
17.5 |
≥2800 |
Fine |
Can be used for making wear resistance parts. RK06CX is better in abrasion resistance than RK09. |
|
RK08 |
8 |
14.68 - 14.82 |
89.0 - 90.2 |
10.3 |
≥2900 |
Medium |
Can be used for making buttons of DTH bits and rock tools. For drilling hard rocks. RK08 is better in toughness than RK06. |
|
RK08A |
8 |
14.68 - 14.82 |
89.6 - 91.0 |
14.5 |
≥2900 |
Medium |
Can be used for making buttons of DTH bits and rock tools. For drilling interlaced soft & hard rocks and interlayer rocks. RK08A is better in abrasion resistance than RK08 and better in toughness than RK06. |
|
RK08CX |
8 |
14.68 - 14.82 |
90.2 - 91.5 |
16 |
≥2900 |
Fine |
Can be used for making buttons of DTH bits and rock tools. For drilling medium and hard rocks. RK08CX is better in abrasion resistance than RK08A and better in toughness than RK06A. |
|
RK09 |
9 |
14.63 -14.78 |
≥89.0 |
10.7 |
≥2700 |
Medium |
Can be used for making wear resistance parts, protective tips/ inserst, protective buttons, serrated buttons. RK09 is better in abrasion resistance than RK10. |
|
RK10 |
10 |
14.48 - 14.62 |
87.8 - 89.2 |
7 |
≥2900 |
Medium |
Can be used for making buttons of rock bits and oil fielddrilling tools. For drilling medium and hard rocks. RK10 is better in abrasion resistance than RK13. |
|
RK10CX |
10 |
14.48 - 14.62 |
91.0 - 92.5 |
15.3 |
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