BK11-B (VK11B)
To equip mining tools: Shock-rotary, rotary-percussion, rotary-percussive drill holes and wells in a very strong and abrasive rocks with factor of a fortress on a scale Protodjakonova up to f = 18.
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Refractory metals, carbide | Hard sintered alloys |
Chemical composition
| Standard | WC, % | Co, % |
|---|---|---|
| GOST 3882-74 | > 89 | < 11 |
Information on suppliers
Physical characteristics
| Temperature, °C | $$\rho$$, $$\frac{kg}{m^3}$$ |
|---|---|
| 20 | 14.1–14.4 |
Analogues
| Germany |
|---|
| HG40 |
Standards
| Standard | Description |
|---|---|
| GOST 3882-74 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| WC | % | Wolfram carbide |
| Co | % | Cobalt |
Description of physical characteristics
| Parameter | Units of measurement | Description |
|---|---|---|
| $$\rho$$ | $$\frac{kg}{m^3}$$ | The density of the material |