Cemented carbide for coal-mining tools M21 type
1. Advanced production equipment and unique manufacturing technology to achieve stable quality and short delivery cycle.
2. Perfect process and ISO9001 quality certification system to ensure product control lability and stability.
Grade Introduction of Mineral | |||||||||||||||||||||
Grade | Co | Grain Size of WC | Hardness | Density | Flexural Strength | Bending Tough- ness | Elastic Modulus | Coeffi- cient of Thermal Expan- sion | Application | ||||||||||||
Co% | HRA | HV30 | g/cm3 | MPa | N/mm2 | GPa | 10-6/°C | ||||||||||||||
G206 | 6 | Medium | 90.8 | 1500 | 14.9 | 3200 | 530 | 4.9 | Suitable for DTH drilling with high wind pressure | ||||||||||||
G506 | 6 | Coarse | 88.0 | 1200 | 14.9 | 2500 | 530 | 4.9 | Suitable for gear shaper cutting of concrete and asphalt road | ||||||||||||
G208 | 8 | Medium | 89.1 | 1300 | 14.7 | 2750 | 510 | 5.1 | Suitable for DTH drilling with medium and low wind pressure,and rock breaking | ||||||||||||
G308 | 8 | Medium | 88.8 | 1270 | 14.7 | 2750 | 510 | 5.1 | Suitable for tri-cone drill bit in milling, and tri-cone | ||||||||||||
G211 | 11 | Medium | 88.0 | 1200 | 14.4 | 2800 | 478 | 5.6 | tri-cone drill bit in milling, drill bit in engineering | ||||||||||||
G215 | 15 | Medium | 86.8 | 1100 | 14 | 2800 | 430 | 6.3 | Suitable for oilfield composite sheet | ||||||||||||
G510 | 10 | Coarse | 86.2 | 1040 | 14.5 | 2700 | 490 | 5.4 | Suitable for rotary drilling cutter, and coal cutters | ||||||||||||
G512 | 12 | Coarse | 86.0 | 1030 | 14.3 | 2900 | 470 | 5.7 | Suitable for tunnel boring machine of scraper,cut- ter and wear plate | ||||||||||||
G513 | 13 | Coarse | 85.6 | 1000 | 14.2 | 2900 | 460 | 5.8 | Suitable for tunnel boring machine of scraper,cut- ter and wear plate | ||||||||||||
G707 | 7 | Extra Coarse | 86.3 | 1050 | 14.8 | 2200 | 520 | 5 | Suitable for hard rock in engineering, and DTH drilling cutter | ||||||||||||
G806 | 6 | Extra Coarse | 86.2 | 1040 | 14.9 | 2100 | 530 | 4.9 | Suitable for high rock of rotary drilling cutter |