Grade selection on this site is discussed as series plus temperature, using the shared grade maximum working temperature table carried on each of the company's shape pages. The table is reproduced below in full. It is a shared table, not a measurement for one shape, and it does not by itself select a grade for an application.
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The shared table
The series and their listed maximum working temperatures are: N35–N52 at 80°C (176°F); 33M–48M at 100°C (212°F); 33H–48H at 120°C (248°F); 30SH–45SH at 150°C (302°F); 30UH–40UH at 180°C (356°F); and 28EH–38EH at 200°C (392°F). A buyer who knows the operating temperature can identify the series whose listed maximum covers it, and that identification is the start of a discussion, not a guarantee. The inquiry should still confirm the combination of grade series, shape and magnetization direction together, because the table does not test combinations.
The company's sintered page carries demagnetization curve charts for several grades. Curve values were not transcribed item by item, so no curve number appears on this site and no grade performance claim is derived from a curve. Coating type names were likewise not transcribed from the company's illustration, so no coating type is named here: please confirm coating requirements before ordering.
| Grade series | Maximum working temperature |
|---|---|
| N35–N52 | 80°C (176°F) |
| 33M–48M | 100°C (212°F) |
| 33H–48H | 120°C (248°F) |
| 30SH–45SH | 150°C (302°F) |
| 30UH–40UH | 180°C (356°F) |
| 28EH–38EH | 200°C (392°F) |