R9M4K8-MP (DI102-MP)
Shaped cutters, drills, reamers, core drills, milling cutters (worm, trailer, disc, special), shaping cutters, shavers for processing high-strength steels and heat resisting steels and alloys.
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Powder metallurgy | High speed steel produced by powder metallurgy |
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Co, % | Cr, % | Cu, % | Ni, % | V, % | P, % | C, % | S, % | O, % | Mo, % | N, % | W, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GOST 28393-89 | 68.31–73.78 | < 0.6 | < 0.5 | 7.5–8.5 | 3–3.6 | < 0.25 | < 0.4 | 2.3–2.7 | < 0.03 | 1.1–1.2 | < 0.03 | < 0.02 | 3.8–4.3 | 0.02–0.06 | 8.5–9.5 |
Information on suppliers
Brinell hardness number
| Rolling | Standard | Classifiers | Value, HBW |
|---|---|---|---|
| Rod | GOST 28393-89 | annealing, hot rolling | 285 |
Standards
| Standard | Description |
|---|---|
| GOST 28393-89 |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Mn | % | Manganese |
| Co | % | Cobalt |
| Cr | % | Chrome |
| Cu | % | Copper |
| Ni | % | Nickel |
| V | % | Vanadium |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
| O | % | Oxygen |
| Mo | % | Molybdenum |
| N | % | Nitrogen |
| W | % | Tungsten |