20HGR
Gears, pinion shafts, worms, cam clutches, rollers, fingers, bushings and other improving or carburized parts operating under impact loads.
Gears, pinion shafts, worms, cam clutches, rollers, fingers, bushings and other improving or carburized parts operating under impact loads.
Standard | Fe, % | Si, % | B, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | P, % | C, % | S, % |
---|---|---|---|---|---|---|---|---|---|---|---|
Standard | Fe, % | Si, % | B, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | P, % | C, % | S, % |
GOST 4543-71 | 96.605–98.199 | 0.17–0.37 | 0.001–0.005 | 0.7–1 | 0.75–1.05 | < 0.06 | < 0.3 | < 0.3 | < 0.035 | 0.18–0.24 | < 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 | 15 | 980 | 780 | 9 | 50 | 780 | Tempering 880 ° C, oil, leave 200 ° C, air |
Rolling | Standard | Classifiers | Value, HBW |
---|---|---|---|
Rolling | Standard | Classifiers | Value, HBW |
Alloy | GOST 4543-71 | annealing | 197 |
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 |