45H14N14V2M (ei69, 4H14N14V2M)
Valves of motors, forgings, details of pipelines.
motor valves, forgings, pipe parts, long operating at temperatures up to 650 ° C .; austenitic steel
Valves of motors, forgings, details of pipelines.
motor valves, forgings, pipe parts, long operating at temperatures up to 650 ° C .; austenitic steel
Standard | Fe, % | Si, % | Mn, % | Cr, % | Ni, % | P, % | C, % | S, % | Mo, % | W, % |
---|---|---|---|---|---|---|---|---|---|---|
GOST 5632-72 | 64.745–71.35 | < 0.8 | < 0.7 | 13–15 | 13–15 | < 0.035 | 0.4–0.5 | < 0.02 | 0.25–0.4 | 2–2.8 |
Temperature, °C | $$E\cdot 10^{9}$$, $$MPa$$ | $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ | $$\varkappa$$, $$\frac{W}{m\cdot K}$$ | $$\rho$$, $$\frac{kg}{m^3}$$ | $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ | $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$ |
---|---|---|---|---|---|---|
20 | 208 | 14 | 8000 | 0.815 | ||
100 | 196 | 16 | 0.875 | |||
200 | 190 | 17 | 17 | 7930 | 0.945 | |
300 | 181 | 19 | 0.507 | 1 | ||
400 | 173 | 18 | 20 | 7840 | 0.511 | 1.055 |
500 | 166 | 21 | 0.523 | 1.098 | ||
600 | 157 | 18 | 22 | 7760 | 0.528 | 1.142 |
700 | 149 | 24 | 1.172 | |||
800 | 141 | 19 | 7660 |
Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{P}$$, $$MPa$$ | $$\epsilon_L$$, % | $$\psi$$, % | Treatment |
---|---|---|---|---|---|---|---|---|---|
Rod | GOST 5949-75 | 710 | 315 | 20 | 35 | Accommodation 810-830 ° C, air |
Rolling | Standard | Classifiers | Value, HBW |
---|---|---|---|
Rod | GOST 5949-75 | annealing | 197–285 |
Standard | Description |
---|---|
GOST 5632-72 | |
GOST 5949-75 |
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) |
$$\rho$$ | $$\frac{kg}{m^3}$$ | The density 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 |
---|---|---|
no limits | Welding is performed without heating and without subsequent heat treatment | |
Boundedly welded | Welding is possible with heating up to 100–120 °C and subsequent heat treatment | |
Difficult to weld | For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing | |
Not applicable for welded structures |