65S2VA (65S2GVA)
Responsible and high-loaded springs and springs.
Responsible and high-loaded springs and springs.
Standard | Fe, % | Si, % | Mn, % | Cr, % | Cu, % | Ni, % | P, % | C, % | S, % | W, % |
---|---|---|---|---|---|---|---|---|---|---|
GOST 14959-79 | 94.31–96.39 | 1.5–2 | 0.7–1 | < 0.3 | < 0.2 | < 0.25 | < 0.025 | 0.61–0.69 | < 0.025 | 0.8–1.2 |
Temperature, °C | $$E\cdot 10^{9}$$, $$MPa$$ | $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ | $$\varkappa$$, $$\frac{W}{m\cdot K}$$ | $$\rho$$, $$\frac{kg}{m^3}$$ | $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ |
---|---|---|---|---|---|
20 | 2.11 | 27 | 7850 | ||
100 | 2.06 | 11.5 | 27 | 0.475 | |
200 | 2 | 12.5 | 28 | 0.5 | |
300 | 1.95 | 13 | 29 | 0.51 | |
400 | 1.85 | 13.5 | 29 | 0.53 | |
500 | 1.78 | 13.8 | 29 | 0.555 | |
600 | 1.54 | 14.3 | 29 | 0.58 | |
700 | 1.36 | 14.5 | 28 | 0.615 | |
800 | 1.31 | 13.5 | 28 | 0.69 |
Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{P}$$, $$MPa$$ | $$\psi$$, % | d5, % | Treatment |
---|---|---|---|---|---|---|---|---|---|
The tape is annealed. | GOST 2283-79 | 0.1–4 | annealing | 880 | 8 | ||||
The tape is hardcore. | GOST 2283-79 | 0.1–4 | cold-work | 780–1180 | |||||
Steel | GOST 14959-79 | 1860 | 1665 | 20 | 5 | Tempering 850 ° C, oil, leave 420 ° C |
Rolling | Standard | Classifiers | Value, HBW |
---|---|---|---|
Alloy | GOST 14959-79 | raw | 321 |
Hire | GOST 14959-79 | heat-treated | 285 |
Standard | Description |
---|---|
GOST 14959-79 |
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) |
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 |