60HFA (60HFA-SH, 60HF)
Spring-spring steel, chrome-vanadium high-quality instrumental belongs to the group of spring-spring steels. Increased heat resistance Bad perceives shock loads. Not used for welded structures.
For the manufacture of heavily loaded parts with high fatigue strength; springs operating at temperatures up to +200 ° C; tool.
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Structural steel |
Bearing structural steel |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Cr, % |
Cu, % |
Ni, % |
V, % |
P, % |
C, % |
S, % |
|---|
| DSTU 3-009-2000 |
> 96.49 |
0.17–0.37 |
0.5–0.8 |
0.8–1.1 |
< 0.2 |
< 0.25 |
0.1–0.2 |
< 0.025 |
0.46–0.54 |
< 0.025 |
Information on suppliers
Physical characteristics
| 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 |
2.18 |
|
40 |
7800 |
|
320 |
| 100 |
2.15 |
11.7 |
39 |
7780 |
490 |
|
| 200 |
2.1 |
12.2 |
38 |
7750 |
505 |
|
| 300 |
2 |
12.9 |
37 |
7720 |
510 |
|
| 400 |
1.88 |
13.5 |
36 |
7680 |
530 |
|
| 500 |
1.78 |
14 |
33 |
7650 |
560 |
|
| 600 |
1.6 |
14.4 |
31 |
7610 |
580 |
|
| 700 |
1.42 |
14.6 |
29 |
|
620 |
|
| 800 |
1.32 |
31.1 |
28 |
|
700 |
|
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
|
|
Hardening, average vacation |
262–311 |
Technological Properties
| Weldability |
Flake Susceptibility |
Propensity to temper brittleness |
|---|
| Not applicable for welded structures |
not sensitive |
loathsome |
Critical point temperatures
| Ac1, K |
Ac3(Acm), K |
Ar3(Arcm), K |
Ar1, K |
Mn, K |
|---|
| 752 |
788 |
746 |
688 |
300 |
Analogues
| CIS, Russia, Ukraine |
|---|
| 50ХФА |
| 50HFA |
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mn |
% |
Manganese |
| Cr |
% |
Chrome |
| Cu |
% |
Copper |
| Ni |
% |
Nickel |
| V |
% |
Vanadium |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
Description of physical characteristics
| 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 |
Designation of types of weldability
| 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 |
|
|
Description of temperatures of critical points
| Parameter |
Units of measurement |
Description |
| Ac1 |
K |
|
| Ac3(Acm) |
K |
|
| Ar3(Arcm) |
K |
|
| Ar1 |
K |
|
| Mn |
K |
|