Non-oriented electrical steel sheet
View Patent ↗A non-oriented electrical steel sheet contains Cr: 0.3 mass % to 5.3 mass %, Si: 1.5 mass % to 4 mass %, Al: 0.4 mass % to 3 mass %, and W: 0.0003 mass % to 0.01 mass %. A C content is 0.006 mass % or less, a Mn content is 1.5 mass % or less, a S content is 0.003 mass % or less, and a N content is 0.003 mass % or less, and the balance is composed of Fe and inevitable impurities.
1. A non-oriented electrical steel sheet containing:
Cr: 0.3 mass % to 5.3 mass %;
Si: 1.5 mass % to 4 mass %;
Al: 0.4 mass % to 3 mass %;
W: 0.0003 mass % to 0.005 mass %,
C: 0.006 mass % or less,
Mn: 1.5 mass % or less,
S: 0.003 mass % or less,
N: 0.003 mass % or less, and
the balance being composed of Fe and inevitable impurities.
2. The non-oriented electrical steel sheet according to claim 1 , further containing at least one element selected from a group consisting of:
Mo: 0.001 mass % to 0.03 mass %;
Ti: 0.0005 mass % to 0.007 mass %; and
Nb: 0.0002 mass % to 0.004 mass %.
3. The non-oriented electrical steel sheet according to claim 1 , further containing at least one element selected from a group consisting of:
V: 0.0005 mass % to 0.005 mass %;
Zr: 0.0003 mass % to 0.003 mass %;
Cu: 0.001 mass % to 0.2 mass %;
Sn: 0.001 mass % to 0.2 mass %;
Ni: 0.001 mass % to 0.2 mass %;
Sb: 0.001 mass % to 0.2 mass %;
rare earth metal: 0.0002 mass % to 0.004 mass %; and
Ca: 0.0005 mass % to 0.006 mass %.
4. The non-oriented electrical steel sheet according to claim 2 , further containing at least one element selected from a group consisting of:
V: 0.0005 mass % to 0.005 mass %;
Zr: 0.0003 mass % to 0.003 mass %;
Cu: 0.001 mass % to 0.2 mass %;
Sn: 0.001 mass % to 0.2 mass %;
Ni: 0.001 mass % to 0.2 mass %;
Sb: 0.001 mass % to 0.2 mass %;
rare earth metal: 0.0002 mass % to 0.004 mass %; and
Ca: 0.0005 mass % to 0.006 mass %.