Amazing Magnets - Rare Earth Magnets

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The chart below is list of commonly available grades. The majority of magnets sold by Amazing Magnets are grade N40. The higher the grade (lower in the chart) the more brittle the magnets will be. Operating Temperatures are grouped by color for ease of reading. When selecting a working temperature, make sure you will not reach or exceed the Tmax value in the chart, or the magnets will be damaged.

Grade	Br (KG)	Hcb (KOe)	Hci (KOe)	BHmax (MGOe)	Tmax

N35	11.7-12.2	≥10.9	≥12.0	33-36	80C / 176F
N38	12.2-12.5	≥10.9	≥12.0	36-39	80C / 176F
N40	12.5-12.8	≥11.4	≥12.0	38-41	80C / 175F
N42	12.8-13.2	≥11.5	≥12.0	40-43	80C / 176F
N45	13.2-13.8	≥11.6	≥12.0	43-46	80C / 176F
N48	13.8-14.2	≥11.6	≥12.0	46-49	80C / 176F
N50	14.0-14.5	≥10.0	≥11.0	48-51	70C / 158F
N52	14.3-14.8	≥10.0	≥11.0	50-53	70C / 158F
30M	10.8-11.3	≥ 10.0	≥ 14.0	28-31	100C / 212F
33M	11.3-11.7	≥10.5	≥14.0	31-33	100C / 212F
35M	11.7-12.2	≥10.9	≥14.0	33-36	100C / 212F
38M	12.2-12.5	≥11.3	≥14.0	36-39	100C / 212F
40M	12.5-12.8	≥11.6	≥14.0	38-41	100C / 212F
42M	12.8-13.2	≥12.0	≥14.0	40-43	100C / 212F
45M	13.2-13.8	≥12.5	≥14.0	43-46	100C / 212F
48M	13.6-14.3	≥12.9	≥14.0	46-49	100C / 212F
50M	14.0-14.5	≥13.0	≥14.0	48-51	100C / 212F
30H	10.8-11.3	≥10.0	≥17.0	28-31	120C / 248F
33H	11.3-11.7	≥10.5	≥17.0	31-34	120C / 248F
35H	11.7-12.2	≥10.9	≥17.0	33-36	120C / 248F
38H	12.2-12.5	≥11.3	≥17.0	36-39	120C / 248F
40H	12.5-12.8	≥11.6	≥17.0	38-41	120C / 248F
42H	12.8-13.2	≥12.0	≥17.0	40-43	120C / 248F
45H	13.2-13.8	≥12.0	≥17.0	43-46	120C / 248F
48H	13.7-14.3	≥12.5	≥17.0	46-49	120C / 248F
30SH	10.8-11.3	≥10.1	≥20.0	28-31	150C / 302F
33SH	11.3-11.7	≥10.6	≥20.0	31-34	150C / 302F
35SH	11.7-12.2	≥11.0	≥20.0	33-36	150C / 302F
38SH	12.2-12.5	≥11.4	≥20.0	36-39	150C / 302F
40SH	12.4-12.8	≥11.8	≥20.0	38-41	150C / 302F
42SH	12.8-13.2	≥12.4	≥20.0	40-43	150C / 302F
45SH	13.2-13.8	≥12.6	≥20.0	43-46	150C / 302F
28UH	10.2-10.8	≥9.6	25.0	26-29	180C / 356F
30UH	10.8-11.3	≥10.2	≥25.0	28-31	180C / 356F
33UH	11.3-11.7	≥10.7	≥25.0	31-34	180C / 356F
35UH	11.8-12.2	≥10.8	≥25.0	33-36	180C / 356F
38UH	12.2-12.5	≥11.3	≥25.0	36-39	180C / 356F
40UH	12.4-12.8	≥11.3	≥25.0	38-41	180C / 356F
28EH	10.4-10.9	≥9.8	≥30.0	26-29	200C / 392F
30EH	10.8-11.3	≥10.2	≥30.0	28-31	200C / 392F
33EH	11.3-11.7	≥10.5	≥30.0	31-34	200C / 392F
35EH	11.7-12.2	≥11.0	≥30.0	33-36	200C / 392F
38EH	12.2-12.5	≥11.3	≥30.0	36-39	200C / 392F
YXG24	9.5-10.2	=8.7	=18	22-24