Sintering NdFeb arc magnets with its superior performance, rich raw material, the reasonable price are to rapid development and wide application. The main application in micro &special motor, permanent magnet instrument, the electronics industry, automobile industry, petroleum chemical industry, nuclear magnetic resonance (NMR) device, audio equipment, maglev system, magnetic transmission mechanism and magnetic therapy equipment, etc. Ndfeb magnets are easy to rust, oxidation, so the surface of ndfeb magnets usually requires plating processing, such as zinc, nickel, silver and gold, also can do the phosphorus treatment or gush to slow down the epoxy resin oxidation speed.

Magnetic Properties of Sintered NdFeB Magnets

Grade	Max. Energy Product		Remanence		Coercive Force				Rev. Temp. Coeff.		Curie Temp.	Working Temp.
	(BH)max		Br		Hc		Hci		Bd	Hd	Tc	Tw
	MGOe	kJ/m3	kG	mT	kOe	kA/m	kOe	kA/m	%/oC	%/oC	oC	oC
N33	31-33	247-263	11.30-11.70	1130-1170	>10.5	>836	>12	>955	-0.12	-0.60	310	80
N35	33-36	263-287	11.70-12.10	1170-1210	>10.9	>868	>12	>955	-0.12	-0.60	310	80
N38	36-39	287-310	12.10-12.50	1210-1250	>11.3	>899	>12	>955	-0.12	-0.60	310	80
N40	38-41	302-326	12.50-12.80	1250-1280	>11.6	>923	>12	>955	-0.12	-0.60	310	80
N42	40-43	318-342	12.80-1320	1280-1320	>11.6	>923	>12	>955	-0.12	-0.60	310	80
N45	43-46	342-366	13.20-13.80	1320-1380	>11.0	>876	>12	>955	-0.12	-0.60	310	80
N48	46-49	366-390	13.80-14.20	1380-1420	>10.5	>835	>11	>876	-0.12	-0.60	310	80
N30M	28-32	223-255	10.90-11.70	1090-1170	>10.2	>812	>14	>1114	-0.12	-0.59	320	100
N33M	31-35	247-279	11.40-12.20	1140-1220	>10.7	>851	>14	>1114	-0.12	-0.59	320	100
N35M	33-37	263-294	11.80-12.50	1180-1250	>11.0	>875	>14	>1114	-0.12	-0.59	320	100
N38M	36-40	286-318	12.30-13.00	1230-1300	>11.5	>915	>14	>1114	-0.12	-0.59	320	100
N40M	38-42	302-334	12.60-13.20	1260-1320	>11.8	>939	>14	>1114	-0.12	-0.59	320	100
N42M	40-44	318-350	13.00-13.50	1300-1350	>12.0	>955	>14	>1114	-0.12	-0.59	320	100
N45M	42-46	334-366	13.20-13.80	1320-1380	>12.2	>971	>14	>1114	-0.12	-0.59	320	100
N33H	31-34	247-271	11.30-11.70	1130-1170	>10.5	>836	>17	>1353	-0.11	-0.58	320-350	120
N35H	33-36	263-287	11.70-12.10	1170-1210	>10.9	>868	>17	>1353	-0.11	-0.58	320-350	120
N38H	36-39	287-310	12.10-12.50	1210-1250	>11.3	>899	>17	>1353	-0.11	-0.58	320-350	120
N40H	38-41	302-326	12.40-12.80	1240-1280	>11.6	>923	>17	>1353	-0.11	-0.58	320-350	120
N42H	40-43	318-342	12.80-13.20	1280-1320	>12.0	>955	>17	>1360	-0.11	-0.58	320-350	120
N33SH	31-34	247-272	11.30-11.70	1130-1170	>10.6	>844	>20	>1592	-0.11	-0.55	340-360	150
N35SH	33-36	263-287	11.70-12.10	1170-1210	>11.0	>876	>20	>1592	-0.11	-0.55	340-360	150
N38SH	36-39	287-310	12.10-12.50	1210-1250	>11.4	>907	>20	>1592	-0.11	-0.55	340-360	150
N40SH	38-41	302-326	12.10-12.80	1240-1280	>11.8	>939	>20	>1592	-0.11	-0.55	340-360	150
N28UH	26-29	207-231	10.20-10.80	1020-1080	>9.6	>768	>25	>1990	-0.11	-0.51	350-380	180
N30UH	28-31	223-247	10.80-11.30	1080-1130	>10.2	>816	>25	>1990	-0.11	-0.51	350-380	180
N33UH	31-34	247-271	11.30-11.70	1130-1170	>10.7	>856	>25	>1990	-0.11	-0.51	350-380	180
N28EH	26-29	211-236	10.40-10.90	1040-1090	>9.8	>784	>30	>2388	-0.11	-0.51	350-380	200
N30EH	28-31	223-247	10.80-11.30	1080-1130	>10.2	>812	>30	>2388	-0.11	-0.51	350-380	200

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