25HGNMT (25HGNMTA)
For the manufacture of parts of devices operating on the friction; Parts of auxiliary units of machines and devices.
For the manufacture of parts of devices operating on the friction; Parts of auxiliary units of machines and devices.
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | P, % | C, % | S, % | Mo, % |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | P, % | C, % | S, % | Mo, % |
| GOST 4543-71 | 95.88–97.46 | 0.17–0.37 | 0.5–0.8 | 0.4–0.6 | 0.04–0.09 | < 0.3 | 0.8–1.1 | < 0.035 | 0.23–0.29 | < 0.035 | 0.4–0.5 |
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{P}$$, $$MPa$$ | $$\epsilon_L$$, % | $$\psi$$, % | $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ | Treatment |
|---|---|---|---|---|---|---|---|---|---|---|
| Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{P}$$, $$MPa$$ | $$\epsilon_L$$, % | $$\psi$$, % | $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ | Treatment |
| Rod | GOST 4543-71 | 25 | 1180 | 1080 | 10 | 40 | 490 | Tempering 860 ° C, oil, leave 190 ° C, air |
| Standard | Description |
|---|---|
| Standard | Description |
| GOST 4543-71 |
| Parameter | Units of measurement | Description |
|---|---|---|
| Parameter | Units of measurement | Description |
| $$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |
| $$\sigma_{P}$$ | $$MPa$$ | Proportionality limit |
| $$\epsilon_L$$ | % | Elongation at break (longitudinal) |
| $$\psi$$ | % | Reduction in cross section on fracture |
| $$KCU\cdot 10^{3}$$ | $$\frac{J}{m^2}$$ | Impact toughness |
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