Neodymium Magnet Grades

Neodymium magnets offer the highest energy product available today. NdFeB magnet is composed of Neodymium (Nd), Iron (Fe), and Boron (B). We are supplier of industrial grade sintered neodymium magnets for high-performance motors, sensors and magnetic holding applications.

Neodymium Magnet Grade Charts

N55 is the strongest normal NdFeB grade. Each neodymium grade has a maximum working temperature rating. These rating are represented by the letter M, H, SH, UH, EH, AH. If you have questions, please contact us. We are always happy to assist you!

NdFeB Grade N	Br (Gauss)	Hc (Oe)	Hci (Oe)	(BH)max (MGOe)	Reversible Temperature Coefficients Br%/°C	Reversible Temperature Coefficients Hcj%/°C	Continuous Working Temp. Max °C	BH Curve
N55	14,600 – 15,000	10,800 – 12,800	11,000 – 18,000	52.0 – 56.0	-0.11	-0.68	70
N53	14,300 – 14,800	10,700 – 12,700	12,000 – 18,000	51.0 – 54.0	-0.12	-0.65	70	BH Curve
N52	14,200 – 14,800	10,500 – 12,500	12,000 – 18,000	50.0 – 53.0	-0.12	-0.65	80	BH Curve
N50	14,000 – 14,500	10,500 – 12,500	12,000 – 18,000	48.0 51.0	-0.12	-0.65	80	BH Curve
N48	13,600 – 14,200	10,500 – 12,500	12,000 – 18,000	46.0 49.0	-0.12	-0.65	80	BH Curve
N45	13,300 – 13,700	10,500 – 12,500	12,000 – 18,000	43.0 46.0	-0.12	-0.65	80	BH Curve
N42	12,900 – 13,300	10,500 – 12,500	12,000 – 18,000	40.0 43.0	-0.12	-0.65	80	BH Curve
N40	12,600 – 12,900	10,800 – 12,800	12,000 – 18,000	38.0 41.0	-0.12	-0.65	80	BH Curve
N38	12,200 – 12,600	10,800 – 12,800	12,000 – 18,000	35.0 39.0	-0.12	-0.65	80	BH Curve
N35	11,700 – 12,200	10,800 – 12,800	12,000 – 18,000	33.0 36.0	-0.12	-0.65	80	BH Curve
N33	11,400 – 11,700	10,800 – 12,800	12,000 – 18,000	30.0 34.0	-0.12	-0.65	80	BH Curve
N30	10,800 – 11,400	10,800 – 12,800	12,000 – 18,000	28.0 31.0	-0.12	-0.65	80	BH Curve

NdFeB Grade M	Br (Gauss)	Hc (Oe)	Hci (Oe)	(BH)max (MGOe)	Reversible Temperature Coefficients Br%/°C	Reversible Temperature Coefficients Hcj%/°C	Continuous Working Temp. Max °C	BH Curve
N52M	14,500 – 14,800	12,800 – 14,800	14,000 – 20,000	50.0 – 52.0	-0.12	-0.65	100	BH Curve
N50M	13,900 – 14,500	13,200 – 15,200	14,000 – 20,000	48.0 – 51.0	-0.12	-0.65	100	BH Curve
N48M	13,700 – 14,100	12,800 – 14,800	14,000 – 20,000	45.0 – 49.0	-0.12	-0.65	100	BH Curve
N45M	13,300 – 13,700	12,400 – 14,400	14,000 – 20,000	42.0 – 46.0	-0.12	-0.65	100	BH Curve
N42M	12,900 – 13,300	12,000 – 14,000	14,000 – 20,000	40.0 – 43.0	-0.12	-0.65	100	BH Curve
N40M	12,600 – 12,900	11,800 – 13,800	14,000 – 20,000	38.0 – 41.0	-0.12	-0.65	100	BH Curve
N38M	12,200 – 12,600	11,500 – 13,500	14,000 – 20,000	35.0 – 39.0	-0.12	-0.65	100	BH Curve
N35M	11,700 – 12,200	11,000 – 13,000	14,000 – 20,000	33.0 – 36.0	-0.12	-0.65	100	BH Curve
N33M	11,400 – 11,700	10,700 – 14,700	14,000 – 20,000	30.0 – 34.0	-0.12	-0.65	100	BH Curve
N30M	10,800 – 11,400	10,200 – 14,200	14,000 – 20,000	28.0 – 31.0	-0.12	-0.65	100	BH Curve

NdFeB Grade H	Br (Gauss)	Hc (Oe)	Hci (Oe)	(BH)max (MGOe)	Reversible Temperature Coefficients Br%/°C	Reversible Temperature Coefficients Hcj%/°C	Continuous Working Temp. Max °C	BH Curve
N50H	14,100 14,500	13,000 15,000	17,000 – 25,000	48.0 – 50.0	-0.11	-0.58	120	BH Curve
N48H	13,700 – 14,100	12,700 14,700	17,000 – 25,000	45.0 – 48.0	-0.11	-0.58	120	BH Curve
N45H	13,300 – 13,700	12,200 14,200	17,000 – 25,000	42.0 – 46.0	-0.11	-0.58	120	BH Curve
N42H	12,900 – 13,300	12,000 – 14,000	17,000 – 25,000	40.0 – 43.0	-0.11	-0.58	120	BH Curve
N40H	12,600 – 12,900	11,800 – 13,800	17,000 – 25,000	38.0 – 41.0	-0.11	-0.62	120	BH Curve
N38H	12,200 – 12,600	11,500 – 13,500	17,000 – 25,000	35.0 – 39.0	-0.11	-0.62	120	BH Curve
N35H	11,700 – 12,200	11,000 – 13,000	17,000 – 25,000	33.0 – 36.0	-0.11	-0.62	120	BH Curve
N33H	11,400 – 11,700	10,500 – 12,500	17,000 – 25,000	30.0 – 34.0	-0.11	-0.62	120	BH Curve
N30H	10,800 – 11,400	10,000 – 12,000	17,000 – 25,000	28.0 – 31.0	-0.11	-0.62	120	BH Curve

NdFeB Grade SH	Br (Gauss)	Hc (Oe)	Hci (Oe)	(BH)max (MGOe)	Reversible Temperature Coefficients Br%/°C	Reversible Temperature Coefficients Hcj%/°C	Continuous Working Temp. Max °C	BH Curve
N50SH	13,900 – 14,300	13,000 – 15,000	20,000 – 28,000	47.0 – 50.0	-0.11	-0.60	150	BH Curve
N48SH	13,700 – 14,100	12,700 – 14,700	20,000 – 28,000	46.0 – 49.0	-0.11	-0.60	150	BH Curve
N46SH	13,500 – 13,700	12,500 – 14,500	20,000 – 28,000	44.0 – 47.0	-0.11	-0.60	150	BH Curve
N44SH	13,200 – 13,500	12,300 – 14,300	20,000 – 28,000	42.0 – 45.0	-0.11	-0.60	150	BH Curve
N42SH	12,900 – 13,200	12,100 – 14,100	20,000 – 28,000	40.0 – 43.0	-0.11	-0.60	150	BH Curve
N40SH	12,600 – 12,900	11,700 – 13,700	20,000 – 28,000	38.0 – 41.0	-0.11	-0.60	150	BH Curve
N38SH	12,200 – 12,600	11,300 – 13,300	20,000 – 28,000	36.0 – 3.90	-0.11	-0.60	150	BH Curve
N35SH	11,700 – 12,200	11,000 – 12,000	20,000 – 28,000	33.0 – 37.0	-0.11	-0.60	150	BH Curve
N33SH	11,400 – 11,700	10,700 – 12,700	20,000 – 28,000	31.0 – 34.0	-0.11	-0.60	150	BH Curve
N30SH	10,800 – 11,400	10,200 – 12,200	20,000 – 28,000	28.0 – 32.0	-0.11	-0.60	150	BH Curve

NdFeB Grade UH	Br (Gauss)	Hc (Oe)	Hci (Oe)	(BH)max (MGOe)	Reversible Temperature Coefficients Br%/°C	Reversible Temperature Coefficients Hcj%/°C	Continuous Working Temp. Max °C	BH Curve
N48UH	13,700 – 14,100	12,700 – 15,000	25,000 – 32,000	46.0 – 49.0	-0.10	-0.55	180	BH Curve
N46UH	13,500 – 13,700	12,500 – 14,500	25,000 – 32,000	44.0 – 47.0	-0.10	-0.55	180	BH Curve
N44UH	13,300 – 13,500	12,300 – 14,300	25,000 – 32,000	42.0 – 45.0	-0.10	-0.55	180	BH Curve
N42UH	12,900 – 13,300	12,200 – 14,200	25,000 – 32,000	40.0 – 43.0	-0.10	-0.50	180	BH Curve
N40UH	12,600 – 13,200	11,800 – 13,800	25,000 – 32,000	38.0 – 41.0	-0.10	-0.55	180	BH Curve
N38UH	12,200 – 12,600	11,500 – 13,500	25,000 – 32,000	36.0 – 39.0	-0.10	-0.55	180	BH Curve
N35UH	11,700 – 12,200	11,000 – 13,000	25,000 – 32,000	33.0 – 36.0	-0.10	-0.55	180	BH Curve
N33UH	11,400 – 11,700	10,700 – 12,700	25,000 – 32,000	31.0 – 34.0	-0.10	-0.55	180	BH Curve
N30UH	10,800 – 11,400	10,200 – 12,200	25,000 – 32,000	28.0 – 31.0	-0.10	-0.55	180	BH Curve

NdFeB Grade EH	Br (Gauss)	Hc (Oe)	Hci (Oe)	(BH)max (MGOe)	Reversible Temperature Coefficients Br%/°C	Reversible Temperature Coefficients Hcj%/°C	Continuous Working Temp. Max °C	BH Curve
N45EH	13,100 – 13,700	12,200 – 14,200	29,000 – 36,000	42.0 – 46.0	-0.09	-0.50	200
N42EH	12,900 – 13,300	12,200 – 14,200	30,000 – 36,000	40.0 – 43.0	-0.09	-0.50	200	BH Curve
N40EH	12,600 – 12,900	11,800 – 13,800	30,000 – 36,000	38.0 – 41.0	-0.09	-0.50	200	BH Curve
N38EH	12,200 – 12,700	11,400 – 13,400	30,000 – 36,000	36.0 – 39.0	-0.09	-0.50	200	BH Curve
N35EH	11,700 – 12,500	11,000 – 13,000	30,000 – 36,000	33.0 – 37.0	-0.09	-0.50	200	BH Curve
N33EH	11,400 – 11,700	10,700 – 12,700	30,000 – 36,000	31.0 – 34.0	-0.09	-0.50	200	BH Curve
N30EH	10,800 – 11,400	10,200 – 12,200	30,000 – 36,000	28.0 – 31.0	-0.09	-0.50	200	BH Curve

NdFeB Grade AH	Br (Gauss)	Hc (Oe)	Hci (Oe)	(BH)max (MGOe)	Reversible Temperature Coefficients Br%/°C	Reversible Temperature Coefficients Hcj%/°C	Continuous Working Temp. Max °C	BH Curve
N38AH	12,200 – 12,600	11,600 – 13,600	35,000 – 42,000	35.0 – 39.0	-0.09	-0.45	220	BH Curve
N35AH	11,700 – 12,200	11,100 – 13,100	35,000 – 42,000	32.0 – 36.0	-0.09	-0.45	220
N32AH	11,300 – 11,700	10,700 – 12,700	35,000 – 42,000	30.0 – 33.0	-0.09	-0.45	220

Neodymium Magnet Grades

Neodymium Magnet Grade Charts

NdFeB Grade N

N55

N53

N52

N50

N48

N45

N42

N40

N38

N35

N33

N30

NdFeB Grade M

N52M

N50M

N48M

N45M

N42M

N40M

N38M

N35M

N33M

N30M

NdFeB Grade H

N50H

N48H

N45H

N42H

N40H

N38H

N35H

N33H

N30H

NdFeB Grade SH

N50SH

N48SH

N46SH

N44SH

N42SH

N40SH

N38SH

N35SH

N33SH

N30SH

NdFeB Grade UH

N48UH

N46UH

N44UH

N42UH

N40UH

N38UH

N35UH

N33UH

N30UH

NdFeB Grade EH

N45EH

N42EH

N40EH

N38EH

N35EH

N33EH

N30EH

NdFeB Grade AH

N38AH

N35AH

N32AH

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N

NdFeB
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H

NdFeB
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SH

NdFeB
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UH

NdFeB
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EH

NdFeB
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