20848
Weldability without restrictions.
for use in magnetic circuits of electric devices and instruments
Classification
| Country |
Section |
Category |
| CIS, Russia, Ukraine |
Electrical steel |
Unalloyed electrical steel |
Chemical composition
| Standard |
Fe, % |
Si, % |
Mn, % |
C, % |
|---|
| GOST 3836-83 |
> 99.36 |
< 0.3 |
< 0.3 |
< 0.04 |
Information on suppliers
Magnetic properties
| Rolling |
Dimensions, $$mm$$ |
$$H_c$$, $$A/m$$ |
$$\mu_{max}$$, $$MH/m$$ |
$$B_{500}$$, $$T$$ |
$$B_{1000}$$, $$T$$ |
$$B_{2500}$$, $$T$$ |
$$B_{5000}$$, $$T$$ |
$$B_{10000}$$, $$T$$ |
$$B_{30000}$$, $$T$$ |
|---|
| Sheet |
0.7–3.9 |
48 |
6 |
1.38 |
1.5 |
1.62 |
1.71 |
1.81 |
2.05 |
Technological Properties
Standards
Description of chemical elements
| Element |
Units of measurement |
Description |
| Fe |
% |
Iron |
| Si |
% |
Silicon |
| Mn |
% |
Manganese |
| C |
% |
Carbon |
Description of magnetic properties
| Parameter |
Units of measurement |
Description |
| Dimensions |
$$mm$$ |
|
| $$H_c$$ |
$$A/m$$ |
Magnetic coercivity (not more) |
| $$\mu_{max}$$ |
$$MH/m$$ |
Magnetic permeability (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 |
| $$B_{5000}$$ |
$$T$$ |
Magnetic induction (not less) in a magnetic field while magnetic field strength is 5000 A/m |
| $$B_{10000}$$ |
$$T$$ |
Magnetic induction (not less) in a magnetic field while magnetic field strength is 10000 A/m |
| $$B_{30000}$$ |
$$T$$ |
Magnetic induction (not less) in a magnetic field while magnetic field strength is 30000 A/m |
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 |
|
|