R9
Substitute: R18
For the manufacture of simple tools that do not require a large amount of grinding, for the treatment of conventional structural materials.
Substitute: R18
For the manufacture of simple tools that do not require a large amount of grinding, for the treatment of conventional structural materials.
Standard | Fe, % | Si, % | Mn, % | Co, % | Cr, % | V, % | C, % | Mo, % | W, % |
---|---|---|---|---|---|---|---|---|---|
GOST 19265-73 | 79.65–82.45 | < 0.5 | < 0.4 | < 0.5 | 3.8–4.4 | 2–2.6 | 0.85–0.95 | < 1 | 8.5–10 |
Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{P}$$, $$MPa$$ | $$\psi$$, % | $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ | d5, % | Treatment |
---|---|---|---|---|---|---|---|---|---|---|
Alloy | 840 | 490 | 29 | 260 | 10 | delivery condition | ||||
The tape is annealed. | GOST 2283-79 | 0.1–4 | annealing | 880 |
Standard | Description |
---|---|
GOST 19265-73 | |
GOST 2283-79 | GOST 2283-79 |
Parameter | Units of measurement | Description |
---|---|---|
$$E\cdot 10^{9}$$ | $$MPa$$ | Elastic modulus |
$$\varkappa$$ | $$\frac{W}{m\cdot K}$$ | 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 |