BrBNT1.9
Springs, springy parts-duty, wear-resistant parts of all kinds, non-sparking tools
Springs, springy parts-duty, wear-resistant parts of all kinds, non-sparking tools
Standard | Fe, % | Si, % | Be, % | Ti, % | Cu, % | Ni, % | Al, % | Pb, % |
---|---|---|---|---|---|---|---|---|
GOST 18175-78 | < 0.15 | < 0.15 | 1.85–2.1 | 0.1–0.25 | 96.75–97.85 | 0.2–0.4 | < 0.15 | < 0.005 |
Standard | Description |
---|---|
GOST 18175-78 |
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 |
$$R\cdot 10^{-6}$$ | $$\Omega\cdot m$$ | Electrical resistivity |
Parameter | Units of measurement | Description |
---|---|---|
melting point | °C | The temperature at which solid crystalline body makes the transition to the liquid state and Vice versa |
Hot working temperature | °C | The temperature at which the plastic-deformed metal recrystallizes during the pressure treatment |
annealing temperature | °C | The temperature at which the processes return recrystallization and homogenization of the metal to reduce its hardness for subsequent machining |