A75
For the manufacture of parts of watch movements
Classification
| Country | Section | Category |
|---|---|---|
| CIS, Russia, Ukraine | Tool steel | Carbon Tool Steel |
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Co, % | Ni, % | P, % | C, % | S, % |
|---|---|---|---|---|---|---|---|---|
| TU 14-1-2607-78 | 97.8–98.3 | < 0.3 | 0.4–0.7 | < 0.25 | < 0.25 | 0.04–0.08 | 0.7–0.8 | 0.18–0.24 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | Treatment |
|---|---|---|---|---|---|---|
| Rod | TU 14-1-2607-78 | 780–880 |
Standards
| Standard | Description |
|---|---|
| TU 14-1-2607-78 | TU |
Description of chemical elements
| Element | Units of measurement | Description |
|---|---|---|
| Fe | % | Iron |
| Si | % | Silicon |
| Mn | % | Manganese |
| Co | % | Cobalt |
| Ni | % | Nickel |
| P | % | Phosphorus |
| C | % | Carbon |
| S | % | Sulfur |
Description of mechanical properties
| Parameter | Units of measurement | Description |
|---|---|---|
| $$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |