20848
Hardness 20850 Grade hot rolled. (GOST 11036−75) HB 10 -1 = 131 MPa
For use in magnetic circuits of the electrical apparatus and appliances
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Electrical steel |
Unalloyed electrical steel |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
Cu, % |
P, % |
C, % |
S, % |
|---|
| GOST 11036-75 |
99.1–99.5 |
0.3 |
0.3 |
0.3 |
0.02 |
0.035 |
0.03 |
Information on suppliers
Mechanical properties at 20 °C
| Rolling |
Standard |
Size, mm |
Tension |
Classifiers |
$$\sigma _{U}$$, $$MPa$$ |
$$\psi$$, % |
d5, % |
Treatment |
|---|
| Variety hot rolled. |
GOST 11036-75 |
|
|
|
270 |
60 |
24 |
|
| The variety is calibrated. |
GOST 11036-75 |
|
|
|
350 |
|
4 |
|
Magnetic properties
| Rolling |
$$H_c$$, $$A/m$$ |
$$B_{500}$$, $$T$$ |
$$B_{1000}$$, $$T$$ |
$$B_{2500}$$, $$T$$ |
|---|
| Grade |
50 |
1.44 |
1.53 |
1.62 |
Brinell hardness number
| Rolling |
Standard |
Classifiers |
Value, HBW |
| Variety hot rolled. |
GOST 11036-75 |
|
1310 |
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mn |
% |
Manganese |
| Cu |
% |
Copper |
| P |
% |
Phosphorus |
| C |
% |
Carbon |
| S |
% |
Sulfur |
Description of mechanical properties
| Parameter |
Units of measurement |
Description |
| d5 |
% |
Elongation at break |
| $$\sigma _{U}$$ |
$$MPa$$ |
Ultimate tensile strength |
| $$\psi$$ |
% |
Reduction in cross section on fracture |
Description of magnetic properties
| Parameter |
Units of measurement |
Description |
| $$H_c$$ |
$$A/m$$ |
Magnetic coercivity (not more) |
| $$B_{500}$$ |
$$T$$ |
Magnetic induction (not less) in a magnetic field while magnetic field strength is 500 A/m |
| $$B_{1000}$$ |
$$T$$ |
Magnetic induction (not less) in a magnetic field while magnetic field strength is 1000 A/m |
| $$B_{2500}$$ |
$$T$$ |
Magnetic induction (not less) in a magnetic field while magnetic field strength is 2500 A/m |