Loading patent…
OwnerElke LEUNIS, Sigrid JACOBS +1inventors
InventorsElke LEUNIS, Sigrid JACOBS, Xavier CHASSANG
Estimating the term…
A double cold rolled non-oriented electrical steel sheet having a composition including, expressed in percentage by weight: 0.0001%≤Carbon≤0.007%, 0.2%≤Manganese≤0.24%, 3.1%≤Silicon≤3.5%, 0.8%≤Aluminum≤1.1%, Phosphorus ≤0.15%, Sulfur ≤0.006%, Nitrogen ≤0.09%, and various optional elements. The remainder composition being iron and unavoidable impurities caused by processing. The microstructure is made of ferrite and has in area fraction, 80% to 100% recrystallized microstructure, 0% to 20% non-recrystallized microstructure wherein the average grain size of recrystallized microstructure is from 20 microns to 110 microns and having a percentage of eddy current losses in total iron losses, measured at 1 T and 400 Hz according to IEC 60404-2 standards, less from 30% to 35% when calculated in accordance of Bertotti method and simultaneously having a magnetic polarization at 5000 A/m (J50) from 1.645 T to 1.660 T.
A double cold rolled non-oriented electrical steel sheet having a thickness from 0.28 mm to 0.32 mm and a composition comprising the following elements, expressed in percentage by weight:
Dependencies are inferred from the claim text.