Non-Oriented Electrical Steel Fully Processed
(FP) ASTM A677
| Non-Oriented Electrical Steel Fully Processed (FP) ASTM A677 | ||||||
| Former AISI Type | ASTM Type | Core Loss by Thickness Watts/lb 15 Kilogausses 60HZ | Typical Electrical Resistivity Microhm-CM | Some Characteristics | Typical Applications | |
| Thick | Max w/lb | |||||
| M-15 | 36F145 - |
.0140 .0185 |
1.45 1.60 |
45-55 45-55 |
Lowest core loss of conventional grades. Excellent permeability at low inductions. |
Small power transformers & rotating machines of high efficiency. |
| M-19 | 36F155 47F165 64F200 |
.0140 .0185 .0250 |
1.55 1.65 2.00 |
45-55 45-55 45-55 |
Low core loss, good permeability at low and intermediate inductions. |
High-reactance cores, generators, stators of highefficiency rotating equipment. |
| M-22 | 36F165 47F180 64F210 |
.0140 .0185 .0250 |
1.65 1.80 2.10 |
45-55 45-55 45-55 |
Low core loss, good permeability at low and intermediate inductions. |
High-reactance cores, generators, stators of highefficiency rotating equipment. |
| M-27 | 36F175 47F190 64F225 |
.0140 .0185 .0250 |
1.75 1.90 2.25 |
45-55 45-55 45-55 |
Low core loss, good permeability at low and intermediate inductions. |
High-reactance cores, generators, stators of highefficiency rotating equipment and relays. |
| M-36 | 36F185 47F200 64F235 |
.0140 .0185 .0250 |
1.85 2.00 2.35 |
40-50 40-50 40-50 |
Good core loss, good permeability at all inductions and low exciting current, good stamping properties. |
Small generators, highefficiency, continuous duty rotating A-C and D-C machines and transformers. |
| M-43 | 36F195 47F210 64F250 |
.0140 .0185 .0250 |
1.95 2.10 2.50 |
35-45 35-45 35-45 |
Good core loss, good permeability at all inductions and low exciting current, good stamping properties. |
Small generators, highefficiency, continuous duty rotating A-C and D-C machines and transformers. |
| M-45 | 36F205 47F240 64F275 |
.0140 .0185 .0250 |
2.05 2.40 2.75 |
35-45 35-45 20-30 |
Good stamping properties. Good permeability at high flux densities. |
Small motors, generators, ballasts, and relays. |
| M-47 | 47F280 64F320 |
.0185 .0250 |
2.80 3.20 |
20-30 20-25 |
Good stamping properties. Good permeability at high flux densities. |
Small motors, generators, ballasts, and relays. |