EP604
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Heat resistant steels and alloys |
Heat resistant alloys |
Chemical composition
| Standard |
Fe, % |
Si, % |
B, % |
Mn, % |
Cr, % |
Ti, % |
Ni, % |
P, % |
C, % |
S, % |
Mo, % |
W, % |
|---|
|
24.025–35.3 |
< 0.5 |
0.4–0.55 |
7–8.5 |
14–16 |
1.3–1.8 |
24.725–44.275 |
< 0.025 |
< 0.08 |
< 0.02 |
2.5–4 |
6.5–8.5 |
Information on suppliers
Physical characteristics
| Temperature, °C |
$$E\cdot 10^{9}$$, $$MPa$$ |
$$\rho$$, $$\frac{kg}{m^3}$$ |
|---|
| 18 |
|
8050 |
| 20 |
1.45 |
|
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma_{0.2}$$, $$MPa$$ |
d5, % |
Напр. |
Treatment |
|---|
| Sheet |
TU 14-1-516-73 |
10 |
Longitudinal |
raw |
390–420 |
45 |
540–560 |
|
Твёрдость по Роквеллу
| Rolling |
Standard |
Classifiers |
Value, HRC |
| Sheet |
GOST 5632-14 |
raw |
38–42 |
Technological Properties
| Weldability |
Flake Susceptibility |
Propensity to temper brittleness |
|---|
| Boundedly welded |
insensitive |
not inclined |
Limit operating modes
Heat Treatment Modes
| Treatment |
|---|
| Tempering, vacation |
Long-term strength
| Standard |
Treatment |
Постоянно приложенное напряжение, МПа |
|---|
| GOST 5632-14 |
|
> 240 |
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| B |
% |
Bor |
| Mn |
% |
Manganese |
| Cr |
% |
Chrome |
| Ti |
% |
Titan |
| Ni |
% |
Nickel |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
| Mo |
% |
Molybdenum |
| W |
% |
Tungsten |
Description of physical characteristics
| Parameter |
Units of measurement |
Description |
| $$E\cdot 10^{9}$$ |
$$MPa$$ |
Elastic modulus |
| $$\rho$$ |
$$\frac{kg}{m^3}$$ |
The density of the material |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| d5 |
% |
Elongation at break |
| Напр. |
|
Voltage |
| $$\sigma_{0.2}$$ |
$$MPa$$ |
Tensile stress required to produce a total elongation of 0.2% |
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 |
|
|