The B20R070 query in Chenfan Electric’s CRGO performance tool provides 31 paired loss and magnetizing-capacity values from 1.50 to 1.80 T. Keeping both columns makes the consequence of a higher flux-density selection visible.
The complete B20R070 table
| B (T) | Specific core loss (W/kg) | Magnetizing capacity (VA/kg) |
|---|---|---|
| 1.50 | 0.4923 | 0.9664 |
| 1.51 | 0.4999 | 0.9978 |
| 1.52 | 0.5076 | 1.0292 |
| 1.53 | 0.5152 | 1.0605 |
| 1.54 | 0.5229 | 1.0919 |
| 1.55 | 0.5307 | 1.1265 |
| 1.56 | 0.5393 | 1.1681 |
| 1.57 | 0.5479 | 1.2107 |
| 1.58 | 0.5565 | 1.2533 |
| 1.59 | 0.5651 | 1.2959 |
| 1.60 | 0.574 | 1.3402 |
| 1.61 | 0.584 | 1.392 |
| 1.62 | 0.594 | 1.4478 |
| 1.63 | 0.6038 | 1.5074 |
| 1.64 | 0.6132 | 1.5704 |
| 1.65 | 0.6242 | 1.6388 |
| 1.66 | 0.6354 | 1.7134 |
| 1.67 | 0.6477 | 1.7932 |
| 1.68 | 0.6606 | 1.8843 |
| 1.69 | 0.6732 | 1.978 |
| 1.70 | 0.6869 | 2.0804 |
| 1.71 | 0.7004 | 2.1912 |
| 1.72 | 0.7153 | 2.3134 |
| 1.73 | 0.7318 | 2.4577 |
| 1.74 | 0.7481 | 2.6124 |
| 1.75 | 0.7652 | 2.7829 |
| 1.76 | 0.783 | 2.9666 |
| 1.77 | 0.8032 | 3.1854 |
| 1.78 | 0.8244 | 3.4348 |
| 1.79 | 0.8471 | 3.7287 |
| 1.80 | 0.8736 | 4.1013 |
At 1.70 T, the table gives 0.6869 W/kg and 2.0804 VA/kg. At 1.80 T, it gives 0.8736 W/kg and 4.1013 VA/kg. Calculated from those points, specific loss rises about 27.2%, while magnetizing capacity rises about 97.1%. The two quantities therefore respond differently across the same interval.
The existing 25-grade directory
B18R060, B20R065, B20R070, B23R080, 23SQGD085, B27R085, B27R090, B27P095, B27R095, B27P100, 27ZH110, 27RGH110, B30P100, 30RK100, 30Q110, 30ZH120, 30Z120, 30QG120, 30RGH120, 30Q120, 30Z130, 30Q130, 30RG130, 30Z140, Z8H-0.3.
The metadata lists loss data for all 25 grades. It flags magnetizing-capacity data as unavailable for 30Z140. This directory identifies available datasets; the complete numerical curve reproduced here is B20R070 only.
Carry the test basis into procurement
For CRGO procurement, specify grade, thickness, coating, frequency and material-test basis. Keep W/kg and VA/kg in their separate fields. The saved query does not establish a batch certificate or verified test frequency; confirm those conditions before comparing another certificate or curve.
These values describe material performance. Finished-core loss also depends on the core geometry, joints, cutting and assembly. Keep the original material table with the enquiry rather than transferring one value into an unrelated finished-core acceptance field.