08H17T (EI645, 0X17T)
Equipment for food, brewing, soap and light industry plants, heat exchangers, pipes.
products operating in oxidizing environments, as well as weather conditions, sea atmosphere except where possible pitting. Heat pipes. Welded constructions that do not suffer a shock loads and operating at a temperature not lower than -20 ° C .; ferritic steel grade
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Corrosion-resistant alloys and steels |
Corrosion-resistant heat-resistant steel |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Cr, % |
Ti, % |
Cu, % |
Ni, % |
P, % |
C, % |
S, % |
|---|
| GOST 5632-72 |
78.56–84 |
< 0.8 |
< 0.8 |
16–18 |
< 0.8 |
< 0.3 |
< 0.6 |
< 0.035 |
< 0.08 |
< 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 |
206 |
|
25 |
7700 |
|
0.6 |
| 100 |
|
10 |
|
|
0.462 |
|
| 200 |
|
10 |
|
|
|
|
| 300 |
|
10.5 |
|
|
|
|
| 400 |
|
10.5 |
|
|
|
|
| 500 |
|
11 |
|
|
|
|
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\epsilon_L$$, % |
Treatment |
|---|
| Pipes are coldly deformed. |
GOST 9941-81 |
|
|
|
372 |
17 |
|
| Pipes are hot deformed. |
GOST 9940-81 |
|
|
|
372 |
17 |
|
| The plates |
GOST 7350-77 |
|
|
|
440 |
18 |
Annealing |
| Sheet |
GOST 5582-75 |
|
|
|
460 |
20 |
Annealing 740-780 ° C |
Technological Properties
| Weldability |
Propensity to temper brittleness |
|---|
| Boundedly welded |
inclined |
Analogues
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mn |
% |
Manganese |
| Cr |
% |
Chrome |
| Ti |
% |
Titan |
| Cu |
% |
Copper |
| Ni |
% |
Nickel |
| 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 |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
| $$\epsilon_L$$ |
% |
Elongation at break (longitudinal) |
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 |
|
|