30HN2MFA (30HN2VFA)
Shafts, one-piece rotors, wheels, gear parts, bolts, studs and other important parts of turbines and compressor machines that operate at elevated temperatures.
Shafts, one-piece rotors, wheels, gear parts, bolts, studs and other important parts of turbines and compressor machines that operate at elevated temperatures.
Standard | Fe, % | Si, % | Mn, % | Cr, % | Cu, % | Ni, % | V, % | P, % | C, % | S, % | Mo, % |
---|---|---|---|---|---|---|---|---|---|---|---|
Standard | Fe, % | Si, % | Mn, % | Cr, % | Cu, % | Ni, % | V, % | P, % | C, % | S, % | Mo, % |
GOST 4543-71 | 94.56–96.36 | 0.17–0.37 | 0.3–0.6 | 0.6–0.9 | < 0.3 | 2–2.4 | 0.1–0.18 | < 0.025 | 0.27–0.34 | < 0.025 | 0.2–0.3 |
Temperature, °C | E\cdot 10^{9}, MPa | \alpha\cdot 10^{6}, K^{-1} | \varkappa, \frac{W}{m\cdot K} | c\cdot 10^{-3}, \frac{J}{kg\cdot K} | R\cdot 10^{-6}, \Omega\cdot m |
---|---|---|---|---|---|
Temperature, °C | E\cdot 10^{9}, MPa | \alpha\cdot 10^{6}, K^{-1} | \varkappa, \frac{W}{m\cdot K} | c\cdot 10^{-3}, \frac{J}{kg\cdot K} | R\cdot 10^{-6}, \Omega\cdot m |
20 | 216 | 36 | 0.333 | ||
100 | 207 | 11.1 | 35 | 0.466 | |
200 | 206 | 11.7 | 35 | 0.508 | |
300 | 188 | 12.3 | 34 | 0.529 | |
400 | 176 | 12.9 | 32 | 0.567 | |
500 | 169 | 13.3 | 31 | 0.588 | |
600 | 13.7 | 29 | |||
700 | 28 | ||||
800 | 27 |
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 | 880 | 785 | 10 | 40 | 880 | Hardening and tempering |
Rolling | Standard | Classifiers | Value, HBW |
---|---|---|---|
Rolling | Standard | Classifiers | Value, HBW |
Alloy | GOST 4543-71 | annealing | 269 |
Standard | Description |
---|---|
Standard | Description |
GOST 4543-71 |
Parameter | Units of measurement | Description |
---|---|---|
Parameter | Units of measurement | Description |
E\cdot 10^{9} | MPa | Elastic modulus |
\alpha\cdot 10^{6} | K^{-1} | Coefficient of thermal (linear) expansion (range 20°C–T) |
\varkappa | \frac{W}{m\cdot K} | Coefficient of thermal conductivity (the heat capacity of the material) |
c\cdot 10^{-3} | \frac{J}{kg\cdot K} | The specific heat of the material (range 20°C–T) |
R\cdot 10^{-6} | \Omega\cdot m | Electrical resistivity |
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 |