Sintered Disc Neodymium Magnet

Place of Origin:	Zhejiang

Company Profile

NINGBO HUI HESING Magnetics Co.,Ltd

Location:	Ningbo, Zhejiang, China (Mainland)
Business Type:	Manufacturer
Main Products:	Magnetic Products

Product Description

Magnetic Characteristics and Physical Properties of Sintered NdFeB

Grade	Remanence		Coercive Force		Intrinsic Coercive force		Max Energy Product		Highest Work temperature
	Br		Hcb		Hci		(BH) max		Highest Work temperature
	T	KGs	KOe	KA/m	KOe	KA/m	MGOe	KJ/m	ºC
N35	1.16-1.22	11.6-12.2	11	876	12	955	33-36	263-287	80
N38	1.22-1.27	12.2-12.7	11	876	12	955	36-39	287-310	80
N40	1.25-1.31	12.5-1.31	11	876	12	955	38-41	303-326	80
N42	1.28-1.34	12.8-13.4	11	876	12	955	40-43	318-342	80
N45	1.32-1.38	13.2-13.8	11	876	12	955	43-46	342-366	80
N48	1.37-14.3	13.7-14.3	10.5	836	11.5	915	46-49	366-390	80
N50	1.40-1.46	14.0-14.6	10.5	836	11.5	915	48-51	382-406	80
N52	1.43-1.49	14.3-14.9	10.5	836	11.5	915	50-53	398-422	80
N30M	1.08-1.14	10.8-11.4	9.8	780	14	1114	28-31	223-247	100
N33M	1.14-1.18	11.4-11.8	10.3	820	14	1114	31-33	247-263	100
N35M	1.6-1.22	11.6-12.2	10.6	845	14	1114	33-36	263-287	100
N38M	1.23-1.27	12.3-12.7	11	876	14	1114	38-41	303-326	100
N40M	1.25-1.31	12.5-13.1	11.5	912	14	1114	38-41	303-326	100
N42M	1.28-1.34	12.8-13.4	11.8	938	14	1114	40-43	318-342	100
N45M	1.32-1.38	13.2-13.8	12.2	976	14	1114	43-46	342-366	100
N48M	1.37-1.43	13.7-14.3	12.7	1012	13.5	1075	46-49	366-390	100
N50M	1.40-1.46	14.0-14.6	13	1035	13.5	1075	48-51	382-406	100
N35H	1.16-1.22	11.6-12.2	10.6	845	17	1353	33-36	263-287	120
N38H	1.21-1.27	12.1-12.7	11.1	886	17	1353	36-39	287-310	120
N40H	1.25-1.31	12.5-13.1	11.5	912	17	1353	38-41	303-326	120
N42H	1.28-1.34	12.8-13.4	11.8	938	16.5	1313	40-43	318-342	120
N45H	1.32-1.38	13.2-13.8	12.2	976	16	1274	43-46	342-366	120
N30SH	1.07-1.14	10.7-11.4	9.7	772	20	1592	28-31	223-247	150
N33SH	1.22-1.19	1.14-1.18	10.2	816	20	1592	31-34	247-271	150
N35SH	1.16-1.22	11.6-12.2	10.6	845	20	1592	33-36	263-287	150
N38SH	1.21-12.7	12.1-12.7	11.1	886	20	1592	36-39	278-310	150
N40SH	1.25-1.31	12.5-13.1	11.5	912	20	1592	38-41	302-326	150
N42SH	1.28-1.34	12.8-13.4	11.8	938	20	1592	40-43	318-342	150
N30UH	1.07-1.14	10.7-11.4	9.7	772	25	1990	28-31	223-247	180
N33UH	1.12-1.19	11.2-11.9	10.2	816	25	1991	31-34	247-271	180
N35UH	1.16-1.22	11.6-12.2	10.6	845	24	1910	33-36	263-287	180
N38UH	1.21-1.27	12.1-12.7	11.1	886	24	1910	36-39	287-310	180
N30EH	1.07-1.14	10.7-11.4	9.7	772	30	2388	28-31	223-247	200
N33EH	1.12-1.19	11.2-11.9	10.2	816	30	2388	31-34	247-271	200
N35EH	1.16-1.22	11.6-12.2	10.6	845	30	2388	33-36	263-287	200

Physical Properties of Sintered NdFeB Material

Properties	Unit	Parameter
Curie Point	ºC	310-340
((Br)/ (%/K)Temp.Coeff.of Br	%ºC	-0.08 ~ - 0.12
(β(Hcj/%/K)Temp.Coeff.of Hcj	%ºC	-0.42 ~ -0.70
Density	g/cm3	≥7.3
Vickers Hardness	Hv	600
Bending strength	Mpa	250
Tensile strength	Mpa	80
Compressive strength	Mpa	1050
Electrical resistivity	μΩcm	150
Thermal conductivity	W/(m.ºC)	6 ~8

Directions of magnetization

Orientation arrangements		Examples	Material
Axially oriented	Loud speaker Holding devices Magnetic switches Inert gas switches	Isotropic Anisotropic
Magnetized through the height	Filtering systems Clamping devices Magnetic chokes,switches	Isotropic Anisotropic
Magnetized axially In segments with alternating poles picture 6-pole configuration	Synchronous motors disc coupling	Isotropic Anisotropic
Radially oriented	Holding magnets couplings limited sizes available	Isotropic
Oriented through diameter	Synchronous motors special applications	Isotropic Anisotropic With limitations
Oriented laterally on surface picture shows 6-pole configuration	Disc couping holding devices	Isotropic Anisotropic
Multiple pole Orientation on Outer surface Picture shows 4-pole configuration	Dynamos Motors Concentric ring coupings	Isotropic
Multiple pole Orientation on inside surface Picture shows 4-pole configuration	Concentric ring couping Motors	Concentric ring couping Motors
Lateral orientation In lines on surface P = Pole distance	Holding devices Magnetic chokes	Isotropic Anisotropic
Radial orientation	motors	Isotropic Anisotropic
Diametrical orientation	motors	Isotropic Anisotropic
The pole surface can be marked with a pole sign or with an engraving		Laterally oriented magnets can be marked to buyer's require-ment for pole identification