Complaint
Rydmet ISO Tungsten Carbide Coal Mining Tips Buttons:
The Carbide Inserts, Compacts Buttons for the Tricone bits, roller bits are usually be of very good thoughess and wear resistance, we make them from high quality virgin materials and sepcially treat them in the course of production.
Grade list of carbide button mining tips:
| Grade | Density (g/cm3) | Hardness HRA (ISO3738) | Grain Size | Bending Strength(N/mm2) | Main Using purpose | |
| K20 | 15.0 | 90.3 | medium | 3000 | Excellent impact and wear resistance, the first choice for high aire pressure DTH drill bits. | |
| K20 | 15.0 | 90.2 | medium | 2700 | Very good impact and wear resistance, suitable for meidum and low air pressure DTH drill bits and also threaded drill bits. | |
| K20 | 14.9 | 89.2 | Coarse | 2800 | ||
| K30 | 14.7 | 88.5 | Coarse | 2600 | Main used for making tricone drill bits and and other drill bits, suitable for meidum hard and hard rock formations. | |
| K30 | 14.5 | 88 | Coarse | 2800 | ||
| K40 | 14.45 | 87.5 | Coarse | 2800 | Used for heavy dury rock drilling, suitable for hard and super hard rock formations, also used for tricone bit, etc. | |
| K40 | 14.4 | 87 | Coarse | 2900 | ||
| K40 | 14.45 | 87 | Coarse | 2900 | ||
| K40 | 14.4 | 87.8 | Coarse | 3100 | With super toughness and wear resistance, for heavy duty rock drilling tolls and DTH drill bits, suitable for hard and super hard rock formations. | |
| K40 | 14.2 | 86 | Coarse | 3000 |
