China Mine Tunnel Construction Carbide Drill Bits for Tunnel Boring Machine, Find details about China Coal Mining Bit, Tungsten Carbide Tool from Mine Tunnel Construction Carbide Drill Bits for Tunnel Boring Machine
GRADE | Co(%) | WC granulometry(μm) | DENSITY(g/cm3) | HARDNESS(HRA) | TRS(N/mm2) | POROSITY | |||||
BW8 | 8 | 3-6 | 14.6-15.0 | ≥89.2 | ≥2000 | A02B00C00 | |||||
BW8C | 8 | 12-16 | 14.55-14.95 | ≥87.5 | ≥2250 | A02B00C00 | |||||
BW20K | 10 | 18-26 | 14.3-14.6 | ≥86.0 | ≥2500 | A02B02C02 | |||||
BW15 | 15 | 3-6 | 13.9-14.2 | ≥87.0 | ≥2400 | A02B02C02 | |||||
BW11C | 11 | 12-16 | 14.1-14.5 | ≥86.5 | ≥2550 | A02B02C02 | |||||
BW6X | 6 | 0.7-1.7 | 14.7-15.1 | ≥91.0 | ≥1620 | A02B02C02 | |||||
BW20 | 20 | 3-6 | 13.4-13.6 | ≥85.5 | ≥2850 | A02B02C02 |