Active Member
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[China]
Address: Boyun Innovation Industrial Zone, 346# Leifeng Ave,Yuelu Distric,Changsha,Hunan,China
Contact name:Lyu
Hunan Boyun-Dongfang Powder Metallurgy Co., Ltd |
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Cemented carbide for construction engineering tools J20 type
| 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 | ||||||||||||
