BK8-In (VK8V)
To equip mining tools: Shock-rotary, shock-rotary and rotary-percussive drill holes and wells in hard rock by a factor of a fortress on a scale Protodjakonova to f = 14. Nicks hard coals with inclusion of solid rock. Granite processing and similar in strength of rocks.
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Refractory metals, carbide | Hard sintered alloys |
Chemical composition
| Standard | WC, % | Co, % |
|---|---|---|
| GOST 3882-74 | > 92 | < 8 |
Information on suppliers
Standards
| Standard | Description |
|---|---|
| GOST 3882-74 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| WC | % | Wolfram carbide |
| Co | % | Cobalt |