Silicon steel
Silicon steel is an iron‑silicon soft‑magnet alloy with silicon added to reduce core loss and boost magnetic permeability. Commonly used in power grid, new‑energy vehicle and electrical equipment fields.
Non-oriented Electrical Steel
Non-oriented silicon steel has excellent magnetic properties and low energy consumption. With its high permeability and low hysteresis loss, it has universal applications in power transmission and conversion.
| Steel Name | Steel Number |
Nominal thickness mm |
Maximum specific total loss at 50 Hz and at 1.5 T |
Minimum magnetic polarizationa T in an alternating magnetic field strength (A/m) |
Maximum anisotropy of loss at 50 Hz and 1.5 T % |
Minimum stacking factorb |
Minimum number of bends |
Conventional densityc |
||
|---|---|---|---|---|---|---|---|---|---|---|
| 2 500 | 5 000 | 10 000 | ||||||||
| M940-50A | 1.0817 | 9,40 | 1,62 | 1,72 | 1,81 | ±8 | 10 | 7,85 | ||
| M310-65A | 1.0892 | 0,65 | 3,10 | 1,49 | 1,60 | 1,70 | ±15 | 0,97 | 2 | 7,60 |
| M330-65A | 1.0819 | 0,65 | 3,30 | 1,49 | 1,60 | 1,70 | ±15 | 0,97 | 2 | 7,60 |
| M350-65A | 1.0820 | 0,65 | 3,50 | 1,49 | 1,60 | 1,70 | ±14 | 0,97 | 2 | 7,60 |
| M400-65A | 1.0821 | 0,65 | 4,00 | 1,52 | 1,62 | 1,72 | ±14 | 0,97 | 2 | 7,65 |
| M470-65A | 1.0823 | 0,65 | 4,70 | 1,53 | 1,63 | 1,73 | ±12 | 0,97 | 5 | 7,65 |
| M530-65A | 1.0824 | 0,65 | 5,30 | 1,54 | 1,64 | 1,74 | ±12 | 0,97 | 5 | 7,70 |
| M600-65A | 1.0825 | 0,65 | 6,00 | 1,56 | 1,66 | 1,76 | ±10 | 0,97 | 10 | 7,75 |
| M700-65A | 1.0826 | 0,65 | 7,00 | 1,57 | 1,67 | 1,76 | ±10 | 0,97 | 10 | 7,75 |
| M800-65A | 1.0827 | 0,65 | 8,00 | 1,60 | 1,70 | 1,78 | ±10 | 0,97 | 10 | 7,80 |
| M1000-65A | 1.0829 | 0,65 | 10,00 | 1,61 | 1,71 | 1,80 | ±10 | 0,97 | 10 | 7,80 |
| M600-100A | 1.0893 | 1,00 | 6,00 | 1,53 | 1,63 | 1,72 | ±10 | 0,98 | 2 | 7,60 |
| M700-100A | 1.0894 | 1,00 | 7,00 | 1,54 | 1,64 | 1,73 | ±6 | 0,98 | 3 | 7,65 |
| M800-100A | 1.0895 | 1,00 | 8,00 | 1,56 | 1,66 | 1,75 | ±6 | 0,98 | 5 | 7,70 |
| M1000-100A | 1.0896 | 1,00 | 10,00 | 1,58 | 1,68 | 1,76 | ±6 | 0,98 | 10 | 7,80 |
| M1300-100A | 1.0897 | 1,00 | 13,00 | 1,60 | 1,70 | 1,78 | ±6 | 0,98 | 10 | 7,80 |
a. It has been common practice for many years to give values of magnetic flux density. In fact the Epstein frame is used to determine magnetic polarization which is defined as:
J = B – μ₀H
where:
J peak magnetic polarization;
B magnetic flux density;
μ₀ magnetic constant: 4π × 10-7 Hm-1;
H magnetic field strength in accordance with IEC 60050-121.
NOTE: The difference between B and J at 5 000 A/m is equal to 0.006 T.
b. The stated values are valid only for uncoated products. For coated products the values stated in Annex D, Table D.1 apply.
c. Other values of density may be agreed at the time of enquiry and order (see Annex C).
| Steel Grade |
Maximum Specific Total Loss (W/kg) |
||
|---|---|---|---|
| Steel Name | Steel Number | 1.0 T at 50 Hz | 1.5 T at 60 Hz |
| M210-35A | 1.0802 | 0,90 | 2,65 |
| M235-35A | 1.0890 | 0,95 | 2,97 |
| M250-35A | 1.0800 | 1,00 | 3,14 |
| M270-35A | 1.0801 | 1,10 | 3,36 |
| M300-35A | 1.0803 | 1,20 | 3,74 |
| M330-35A | 1.0804 | 1,30 | 4,12 |
| M230-50A | 1.0837 | 1,00 | 2,95 |
| M250-50A | 1.0891 | 1,05 | 3,21 |
| M270-50A | 1.0806 | 1,10 | 3,47 |
| M290-50A | 1.0807 | 1,15 | 3,71 |
| M310-50A | 1.0808 | 1,25 | 3,95 |
| M330-50A | 1.0809 | 1,35 | 4,20 |
| M350-50A | 1.0810 | 1,50 | 4,45 |
| M400-50A | 1.0811 | 1,70 | 5,10 |
| M470-50A | 1.0812 | 2,00 | 5,90 |
| M530-50A | 1.0813 | 2,30 | 6,66 |
| M600-50A | 1.0814 | 2,60 | 7,53 |
| M700-50A | 1.0815 | 3,00 | 8,79 |
| M800-50A | 1.0816 | 3,60 | 10,06 |
| M940-50A | 1.0817 | 4,20 | 11,84 |
| M310-65A | 1.0892 | 1,25 | 4,08 |
| M330-65A | 1.0819 | 1,35 | 4,30 |
| M350-65A | 1.0820 | 1,50 | 4,57 |
| M400-65A | 1.0821 | 1,70 | 5,20 |
| M470-65A | 1.0823 | 2,00 | 6,13 |
| M530-65A | 1.0824 | 2,30 | 6,84 |
| M600-65A | 1.0825 | 2,60 | 7,71 |
| M700-65A | 1.0826 | 3,00 | 8,98 |
| M800-65A | 1.0827 | 3,60 | 10,26 |
| M1000-65A | 1.0829 | 4,40 | 12,77 |
| M600-100A | 1.0893 | 2,60 | 8,14 |
| M700-100A | 1.0894 | 3,00 | 9,38 |
| M800-100A | 1.0895 | 3,60 | 10,70 |
| M1000-100A | 1.0896 | 4,40 | 13,39 |
| M1300-100A | 1.0897 | 5,80 | 17,34 |