TYPICAL TECHNICAL PROPERTIES OF ELECTRICAL INSULATION COATINGS OF NON-GRAIN ORIENTED ELECTRICAL STEEL
| Coating type under GOST 21427.2-83 |
Class ASTM A976-97 |
Varnish type |
Base |
Colour |
Thickness, µm |
Resistance coefficient,Ω cm2 |
Heat resistance |
Freon resistance |
Stampability |
Weldability |
| HW |
C3 |
Remisol EB 503 |
organic |
golden yellow |
0,5-2,5 |
>1 |
2000C, 24 hours in the open air |
Good |
Excellent |
Satisfactory |
| HW 20 |
Voltatex E 1153 A |
organic |
golden yellow |
2,5-4,5 |
>20 |
2000C, 24 hours in the open air |
Good |
Excellent |
Satisfactory |
| TW |
C5 |
Voltatex E 1160 |
organic, chromates |
light green |
0,5-1,5 |
>1 |
4500C, 2 hours in the open air; 7500C, 2 hours in protective env. |
Good |
Excellent |
Good |
| Type 3 |
organic, phosphates |
grey-green |
<1,0 |
>1 |
7500C, 2 hours in protective env. |
Good |
Good |
Good |
| Foscon-301 |
organic, phosphates |
light brown |
<0,7 |
>1 |
4500C, 2 hours in the open air;7500C, 2 hours in protective env. |
Good |
Good |
Good |
| Remisol EB 5350 |
organic, non-organic |
grey-green |
0,5-1,5 |
>1 |
4500C, 2 hours in the open air; 7500C, 1,5 hours in protective env. |
Good |
Good |
Good |
| Remisol EB 5308 |
organic, chromates, non-organic filler |
grey |
1,0-2,0 |
>5 |
4500C, 2 hours in the open air; 7500C, 1,5 hours in protective env |
Good |
Good |
Good |
| HW40 |
C6 |
Voltatex E 1151 A |
organic,non-organic filler |
grey |
4,0-7,0 |
>40 |
2000C, 24 hours in the open air; |
Good |
Excellent |
Satisfactory |
| TW |
C5 |
Voltatex E 1120 |
organic, titanates non-organic filler |
green |
0,5-1,5 |
>3 |
4500C, 2 hours in the open air; 7500C, 2 hours in protective env.; 8500C, 1,5 hours in inert gas (nitrogen) |
Good |
Good |
Good |
| HW |
C3 |
1,5-3 |
>20 |
2000C, 24 hours in the open air |
Good |
Excellent |
Satisfactory |
| HW40 |
C6 |
3-5 |
>40 |
2000C, 24 hours in the open air |
Good |
Excellent |
Satisfactory |
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