VK4-In (VK4B)
To equip mining tools: Drilling pnevmosverlami electricity and coal, anthracite, neokvartsovannyh shale, potash and rock salt; Drilling and coring hand electric drill rocks with factor of a fortress on a scale Protodjakonova to f = 8. Reinforcement cone bits
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Refractory metals, carbide | Hard sintered alloys |
Chemical composition
| Standard | WC, % | Co, % |
|---|---|---|
| GOST 3882-74 | > 96 | < 4 |
Information on suppliers
Standards
| Standard | Description |
|---|---|
| GOST 3882-74 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| WC | % | Wolfram carbide |
| Co | % | Cobalt |