ThyssenKrupp Electrical Steel

The C3 ML coating, water soluble polyester base equivalent to C3 of AISI, improves punchability up to three times as compared to uncoated electrical steel. It is resistant to normal operating temperatures & is highly corrosion resistant (C3 ML coatings can be used as a corrosion undercoat for C6 coatings) but will not withstand stress-relieving annealing (SRA). It is suitable for applications where medium level of inter laminar resistance is required. Suitable for small and medium sized motors.

Parameter	Value
Colour¹	Light Golden Yellow
Average Coating Thickness µm	1.5 ± 0.5
Stacking Factor³	>97.5
Typical Average Insulation Resistivity⁴ In Amps	0.40
Weldable	*
Pencil Hardness	8H
Punchability⁵	3.0 X
Corrosion Resistance	Satisfactory
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.
* Yes (Conditions Apply).