25HGT
Loaded gears and other parts, which NRSe hardness of more than 59.
Loaded gears and other parts, which NRSe hardness of more than 59.
Standard | Fe, % | Si, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | P, % | C, % | S, % |
---|---|---|---|---|---|---|---|---|---|---|
Standard | Fe, % | Si, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | P, % | C, % | S, % |
GOST 4543-71 | 96.18–97.78 | 0.17–0.37 | 0.8–1.1 | 1–1.3 | 0.03–0.09 | < 0.3 | < 0.3 | < 0.035 | 0.22–0.29 | < 0.035 |
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 | 1270 | 980 | 10 | 50 | 690 | Normalization of 880-895 ° C, air Tempering 850 ° C, oil, leave 200 ° C, the water |
Rolling | Standard | Classifiers | Value, HBW |
---|---|---|---|
Rolling | Standard | Classifiers | Value, HBW |
Alloy | GOST 4543-71 | annealing | 217 |
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 |