ThyssenKrupp Electrical Steel

The C3Y coating, water soluble modified phenolic resin equivalent to C3 of AISI, provides thick coating with excellent surface insulation resistivity. This coating has better corrosion resistance than C3M/C3ML. This coating cannot with stand stress relieve annealing. It is suitable for applications where very high level of inter laminar resistance is required such as in medium to large machines, traction motors, high voltage machines & turbogenerators.

Parameter	Value
Colour¹	Grey
Average Coating Thickness µm	5.0 ± 1.0
Stacking Factor³	>96.0
Typical Average Insulation Resistivity⁴ In Amps	0.17
Weldable	No
Pencil Hardness	8H
Punchability⁵	2.0 X
Corrosion Resistance	Very Good
Resistant To Organic Solvents Oil & Lubricant Oil	Resist
Resistant To Freon Gas	--

1 Colour deviation is possible without effect on coating properties.
2 Coating thickness is checked by Fischer Deltascope Coating Thickness Tester.
3 Stacking factor is checked in accordance, with IS 649: 1997.
4 Insulation resistivity is checked in accordance, with IS 649 : 1997.
5 X - Punchability of Bare Steel.