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Properties and applications of cemented carbide grades rock drilling tools, geological prospecting drilling tolls and coa-mining tools.
| Grade | Physical & mechanical properties | Applications recommended | |||||
| Premium grade | Supplemental grade | Density g/cm3 | HardnessHRA | TRSN/mm2 | |||
| YG8CYG9C | YG6YG8 | 14.85-15.0514.65-14.8514.55-14.7514.30-14.70 | ≥89.5≥89.0≥87.5≥87.5 | ≥1670≥1840≥2000≥2200 | It's suitable for making geological prospecting drill bits and mining inserts for light electrical drills for drilling soft rock and coal formations and drill bits for drilling un-silicated rock formations | ||
| YK15.6YK20YK25 | 14.50-14.7014.40-14.6014.40-14.60 | ≥16.5≥86.0≥86.5 | ≥2300≥2460≥2550 | It's suitable for heavy duty rock excavating machines for drilling hard and super hard rock formations and it can also be sued for making tri-cone buttons bits . | |||
| YG11C | JT20H | 14.45-14.5514.20-14.40 | ≥86.5≥86.5 | ≥2800≥2260 | It's mainly used for making andbuttons tri-cone and percussive drill bits for drilling har and super hard rock formations and it can also be used for making insertsin other drill bits | ||
| YK40 | 14.10-14.3 | ≥85.5 | ≥2400 | With super toughness and corresponding wear resistance,it is suitable for mining inserts in mine prospecting, in heavy duty rock drilling machines and depth drilling bits for drilling hard be used for other button tits | |||
Tungsten carbide mining tool part