A complete range of cemented carbide grades that can be used for all types of geological and mining work. They can be used for all kinds of mining tools, engineering tools such as submerged drill bits, tooth wheel bits, coal cut-offs, rotary cut-offs, milling cut-offs, shield tools and crusher throwing heads, etc.
Grade |
Grain size |
Bonded phase (%) |
Hardness |
Flexural strength(Mpa) |
Density(g/cm3) |
Coercive magnetism (ka/m) |
Cobalt magnetism |
Grain size(um) |
Grade Description |
DK05 |
Middle |
6 |
90.2±0.3 |
≥3000 |
≥14.9 |
11.0-12.5 |
5.4-6.0 |
1.6-2.0 |
A versatile grade, suitable for most working conditions. |
PDK10.8 |
Very Rough |
6 |
88.5 |
≥2100 |
14.90-15.05 |
|
|
|
Good toughness and fatigue resistance, suitable for mining, tunneling and other cut-off and road-digging gears. |
PDK20.1 |
Middle |
8 |
89.5 |
≥2800 |
14.65-14.80 |
5.5-7.0 |
8.1-9.0 |
2.2-2.8 |
Good wear resistance, suitable for all sizes of percussion drills, down hole drills and triple tooth bits. |
DK30.3 |
Middle |
9 |
88.8 |
≥2800 |
14.55-14.70 |
|
|
|
Suitable for medium toughness requirements in mining, oil extraction operations, mainly for tooth wheel bits. |
DK30.4 |
Rough |
9 |
87.6±0.4 |
≥2800 |
14.55-14.70 |
|
|
|
Good toughness and fatigue resistance for mining and engineering tools. |
DK35.1 |
Middle |
10 |
88.3 |
≥2800 |
14.45-14.60 |
|
|
|
Suitable for mining and oil extraction operations with medium toughness requirements, mainly for dental wheel bits. |
DK20 |
Rough |
10 |
87.5 |
≥2800 |
14.40-14.60 |
|
|
|
Good toughness and fatigue resistance for mining cut-offs and triple tooth bits. |
PDK35.5 |
Very Rough |
10 |
86.6 |
≥2200 |
14.45-14.60 |
|
|
|
Good toughness and fatigue resistance for mining, tunneling cut-offs and shield bits. |
DK40.1 |
Middle |
11 |
88.0
|
≥2800 |
14.35-14.50 |
|
|
|
Suitable for medium toughness requirements in mining and oil extraction operations, mainly for tooth wheel bits. |
DK40.2 |
Rough |
11 |
86.8 |
≥2800 |
14.35-14.50 |
|
|
|
Good toughness and fatigue resistance for mining cut-offs and shield bits. |
DK41.1 |
Middle |
12 |
86.5 |
≥2800 |
14.25-14.40
|
|
|
|
Good toughness and fatigue resistance for mining cut-offs and shield bits. |
DK42.2 |
Rough |
13 |
86.5 |
≥2800 |
14.15-14.30 |
|
|
|
Good toughness and fatigue resistance for mining, tunnelling and shield heads. |
DK42.3 |
Very Rough |
13 |
86.0 |
≥2200 |
14.15-14.30 |
|
|
|
Good toughness and fatigue resistance for mining, tunnelling and shield heads. |
DK45.2 |
Rough |
15 |
85.6 |
≥2800 |
13.90-14.20 |
|
|
|
Good toughness and fatigue resistance for mining, tunnelling and shield heads. |