PT7M
Weldability: without restrictions.
Pipes and other thin-walled welded parts; Used in parts for the manufacture of which requires high workability during cold stamping; good corrosion resistance; pseudo α class
Weldability: without restrictions.
Pipes and other thin-walled welded parts; Used in parts for the manufacture of which requires high workability during cold stamping; good corrosion resistance; pseudo α class
Standard | Fe, % | Si, % | Ti, % | Zr, % | Al, % | C, % | O, % | N, % | H, % |
---|---|---|---|---|---|---|---|---|---|
GOST 19807-91 | < 0.25 | < 0.12 | 93.834–96.2 | 2–3 | 1.8–2.5 | < 0.1 | < 0.15 | < 0.04 | < 0.006 |
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 | 1.12 | 4490 | 1080 | |||
100 | 8.8 | 9.3 | 1270 | |||
200 | 8.9 | 10.5 | 0.625 | 1400 | ||
300 | 9.2 | 11.9 | 0.659 | 1520 | ||
400 | 9.4 | 13.3 | 0.69 |
Standard | Description |
---|---|
GOST 19807-91 |
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 |