Hunan Golden Globe I&E O.E.D Co., Ltd.
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Carbide Flow Control Parts Oil Gas Spare Parts Tungsten Carbide Trims And Plug Gate Valves
Recommendation grades as follows:
| Cobalt % | Grain Size | Hardness (HRA) | T.R.S | Product / Application |
| 6 | Fine | 92 | 330,000 | Rectangular stabilizer inserts |
| 6 | Medium / Coarse | 90.2 | 350,000 | Spherical dome inserts for percussion and hammer bits |
| 6 | Medium | 90.9 | 350,000 | Spherical dome inserts for percussion and hammer bits |
| 8 | Medium | 90 | 360,000 | Compacts for percussion and hammer bits |
| 10 | Coarse | 87.8 | 420,000 | Rotary drilling compacts |
| 10 | Medium / Coarse | 88.3 | 420,000 | Roller reamers, stabilizers and inserts for geophysical / drag bits |
| 10 | Medium / Coarse | 88.5 | 445,000 | Rotary drilling compacts |
| 10 | Medium | 89.5 | 435,000 | Roller reamers, stabilizers and inserts for geophysical / drag bits |
| 11 | Medium | 88.8 | 430,000 | Rotary drilling compacts |
| 12 | Medium / Coarse | 87.4 | 420,000 | Inserts for geophysical / drag bits |
| 12 | Medium | 88 | 425,000 | Inserts for geophysical / drag bits |
| 15 | Medium / Coarse | 86.8 | 440,000 | PDC substrates |
| 15 | Medium | 87.4 | 435,000 | PDC substrates |
