NdFeB Magnet Parameters | Magnet Specifications | Shanghai King-Nd Magnet Co., Ltd.

Magnet Grade Chart

No Dysprosium & Terbium required for production

Regular + GBD Process

GBD Only

Laboratory Scale Only

NdFeB Full Performance Parameters Table

Series	Grade	Remanence Br				Intrinsic Coercivity Hcj		Coercivity Hcb		Max Energy Product (BH)max				Density ρ	Recoil Permeability μrec	Temperature Coefficient		Max Working Temp
	Unit	T		kGs		kA/m	kOe	kA/m	kOe	kJ/m³		MGOe		g/cm³		αBr	αHcj	℃ (L/D=0.7)
	Grade Code	Max	Min	Max	Min	Min	Min	Min	Min	Max	Min	Max	Min	Min		%/℃	%/℃
N	N56	1.50	1.46	15.0	14.6	876	11	812	10.2	446	406	56	51	7.50	1.05	-0.12	-0.76	80
	N54	1.48	1.44	14.8	14.4	955	12	892	11.2	438	398	55	50	7.50	1.05	-0.12	-0.76	80
	N52	1.46	1.42	14.6	14.2	955	12	892	11.2	422	390	53	49	7.50	1.05	-0.12	-0.76	80
	N50	1.44	1.39	14.4	13.9	955	12	892	11.2	406	374	51	47	7.50	1.05	-0.12	-0.76	80
	N48	1.42	1.37	14.2	13.7	955	12	892	11.2	390	358	49	45	7.50	1.05	-0.12	-0.76	80
	N45	1.37	1.32	13.7	13.2	955	12	892	11.2	366	342	46	43	7.50	1.05	-0.12	-0.76	80
	N42	1.32	1.28	13.2	12.8	955	12	923	11.6	342	318	43	40	7.50	1.05	-0.12	-0.76	80
	N40	1.28	1.25	12.8	12.5	955	12	923	11.6	326	302	41	38	7.50	1.05	-0.12	-0.76	80
	N38	1.25	1.22	12.5	12.3	955	12	923	11.6	310	287	39	36	7.50	1.05	-0.12	-0.76	80
	N35	1.22	1.17	12.2	11.7	955	12	923	11.6	287	263	36	33	7.50	1.05	-0.12	-0.76	80
M	N54M	1.49	1.44	14.9	14.4	1114	14	1035	13.0	438	398	55	50	7.50	1.05	-0.12	-0.68	100
	N52M	1.46	1.42	14.6	14.2	1114	14	1035	13.0	422	390	53	49	7.50	1.05	-0.12	-0.68	100
	N50M	1.44	1.39	14.4	13.9	1114	14	1035	13.0	406	374	51	47	7.50	1.05	-0.12	-0.68	100
	N48M	1.42	1.37	14.2	13.7	1114	14	1027	12.9	390	358	49	45	7.50	1.05	-0.12	-0.68	100
	N45M	1.37	1.32	13.7	13.2	1114	14	995	12.5	366	342	46	43	7.50	1.05	-0.12	-0.68	100
	N42M	1.32	1.28	13.2	12.8	1114	14	955	12.0	342	318	43	40	7.50	1.05	-0.12	-0.68	100
	N40M	1.28	1.25	12.8	12.5	1114	14	923	11.6	326	302	41	38	7.50	1.05	-0.12	-0.68	100
	N38M	1.25	1.22	12.5	12.3	1114	14	899	11.3	310	287	39	36	7.50	1.05	-0.12	-0.68	100
	N35M	1.22	1.17	12.2	11.7	1114	14	868	10.9	287	263	36	33	7.50	1.05	-0.12	-0.68	100
H	N54H	1.49	1.44	14.9	14.4	1353	17	1083	13.6	438	398	55	50	7.50	1.05	-0.12	-0.66	120
	N52H	1.46	1.42	14.6	14.2	1353	17	1067	13.4	422	390	53	49	7.50	1.05	-0.12	-0.66	120
	N50H	1.44	1.39	14.4	13.9	1353	17	1043	13.1	406	374	51	47	7.50	1.05	-0.12	-0.66	120
	N48H	1.42	1.37	14.2	13.7	1353	17	1027	12.9	390	358	49	45	7.50	1.05	-0.12	-0.66	120
	N45H	1.37	1.32	13.7	13.2	1353	17	995	12.5	366	342	46	43	7.50	1.05	-0.12	-0.66	120
	N42H	1.32	1.28	13.2	12.8	1353	17	955	12.0	342	318	43	40	7.50	1.05	-0.12	-0.66	120
	N40H	1.28	1.25	12.8	12.5	1353	17	923	11.6	326	302	41	38	7.50	1.05	-0.12	-0.66	120
	N38H	1.25	1.22	12.5	12.3	1353	17	899	11.3	310	287	39	36	7.50	1.05	-0.12	-0.66	120
	N35H	1.22	1.17	12.2	11.7	1353	17	868	10.9	287	263	36	33	7.50	1.05	-0.12	-0.66	120
SH	N54SH	1.49	1.44	14.9	14.4	1592	20	1083	13.6	438	398	55	50	7.50	1.04	-0.12	-0.66	150
	N52SH	1.46	1.41	14.6	14.1	1592	20	1059	13.3	414	382	52	48	7.50	1.04	-0.12	-0.66	150
	N50SH	1.44	1.39	14.4	13.9	1592	20	1043	13.1	406	374	51	47	7.50	1.04	-0.12	-0.66	150
	N48SH	1.42	1.37	14.0	13.7	1592	20	1027	12.9	390	358	49	45	7.50	1.04	-0.11	-0.56	150
	N45SH	1.37	1.32	13.7	13.2	1592	20	995	12.5	366	342	46	43	7.50	1.04	-0.11	-0.56	150
	N42SH	1.32	1.28	13.2	12.8	1592	20	963	12.1	342	318	43	40	7.50	1.04	-0.11	-0.56	150
	N40SH	1.28	1.25	12.8	12.5	1592	20	947	11.9	326	302	41	38	7.50	1.04	-0.11	-0.56	150
	N38SH	1.25	1.22	12.5	12.2	1592	20	915	11.5	310	287	39	36	7.50	1.04	-0.11	-0.56	150
	N35SH	1.22	1.17	12.2	11.7	1592	20	884	11.1	295	263	37	33	7.50	1.04	-0.11	-0.56	150
	N33SH	1.17	1.13	11.7	11.3	1592	20	844	10.6	271	247	34	31	7.50	1.04	-0.11	-0.56	150
	N30SH	1.13	1.08	11.3	10.8	1592	20	804	10.1	247	223	31	28	7.50	1.04	-0.11	-0.56	150
UH	N54UH	1.49	1.44	14.9	14.4	1990	25	1083	13.6	438	398	55	50	7.50	1.03	-0.11	-0.50	180
	N52UH	1.46	1.42	14.6	14.2	1990	25	1067	13.4	422	390	53	49	7.50	1.03	-0.11	-0.50	180
	N50UH	1.42	1.39	14.2	13.9	1990	25	1043	13.1	406	374	51	47	7.50	1.03	-0.11	-0.50	180
	N48UH	1.40	1.36	14.0	13.6	1990	25	1031	12.9	390	358	49	45	7.55	1.03	-0.11	-0.50	180
	N45UH	1.36	1.32	13.6	13.2	1990	25	1003	12.6	366	342	46	43	7.55	1.03	-0.11	-0.50	180
	N42UH	1.32	1.28	13.2	12.8	1990	25	971	12.2	342	318	43	40	7.55	1.03	-0.10	-0.50	180
	N40UH	1.28	1.25	12.8	12.5	1990	25	923	11.6	326	302	41	38	7.55	1.03	-0.10	-0.50	180
	N38UH	1.25	1.22	12.5	12.2	1990	25	907	11.4	310	287	39	36	7.55	1.03	-0.10	-0.50	180
	N35UH	1.22	1.17	12.2	11.7	1990	25	860	10.8	287	263	36	33	7.55	1.03	-0.10	-0.50	180
	N33UH	1.17	1.13	11.7	11.3	1990	25	852	10.7	271	247	34	31	7.55	1.03	-0.10	-0.50	180
	N30UH	1.13	1.08	11.3	10.8	1990	25	812	10.2	247	223	31	28	7.55	1.03	-0.10	-0.50	180
EH	N48EH	1.40	1.36	14.0	13.6	2388	30	1051	13.2	390	358	49	45	7.60	1.03	-0.10	-0.45	200
	N45EH	1.36	1.32	13.6	13.2	2388	30	1031	12.9	366	342	46	43	7.60	1.03	-0.10	-0.45	200
	N42EH	1.32	1.28	13.2	12.8	2388	30	970	12.2	342	318	43	40	7.60	1.03	-0.10	-0.45	200
	N40EH	1.28	1.25	12.8	12.5	2388	30	947	11.9	326	302	41	38	7.60	1.03	-0.10	-0.45	200
	N38EH	1.25	1.22	12.5	12.2	2388	30	915	11.5	310	287	39	36	7.60	1.03	-0.10	-0.45	200
	N35EH	1.22	1.17	12.2	11.7	2388	30	884	11.1	287	263	36	33	7.60	1.03	-0.10	-0.45	200
	N33EH	1.17	1.13	11.7	11.3	2388	30	860	10.8	271	247	34	31	7.60	1.03	-0.10	-0.45	200
	N30EH	1.13	1.08	11.3	10.8	2388	30	820	10.3	247	223	31	28	7.60	1.03	-0.10	-0.45	200
AH	N45AH	1.36	1.32	13.6	13.2	2786	35	995	12.5	366	342	46	43	7.60	1.03	-0.10	-0.45	230
	N42AH	1.32	1.28	13.2	12.8	2786	35	970	12.2	342	318	43	40	7.60	1.03	-0.10	-0.45	230
	N40AH	1.28	1.25	12.8	12.5	2786	35	947	11.9	326	302	41	38	7.60	1.03	-0.10	-0.45	230
	N38AH	1.25	1.22	12.5	12.2	2786	35	915	11.5	310	287	39	36	7.60	1.03	-0.10	-0.45	230
	N35AH	1.20	1.17	12.0	11.7	2786	35	883	11.1	287	263	36	33	7.60	1.03	-0.10	-0.45	230
	N33AH	1.17	1.11	11.7	11.1	2786	35	844	10.6	271	239	34	31	7.60	1.03	-0.10	-0.45	230
	N30AH	1.13	1.07	11.3	10.7	2786	35	812	10.2	247	215	31	27	7.60	1.03	-0.10	-0.45	230

Notes:
(1) The temperature coefficient test range: Series H and below ΔT=20-100℃; Series SH and above ΔT=20-150℃. The coefficient is for reference only. Please contact our sales engineer for full demagnetization curves.
(2) Max working temperature test standard: Standard cylinder D×L=10*7mm (L/D=0.7), open circuit, heated 2 hours at target temperature, cool to room temp, flux loss ≤5%.

Magnet Demagnetization Curves

35SH

38UH

45SH

48H

48UH

52H

Plating & Coating Technical Data

We provide multiple plating & coating options including nickel, zinc, epoxy, teflon, etc. Each surface treatment has independent salt spray, humidity and PCT test reports to match different working environments.

Coating Type	Symbol	Color	Thickness (μm)	Corrosion Resistance Rating			Max Temp (°C)
Coating Type	Symbol	Color	Thickness (μm)	NSS Salt Spray	Humidity Test	PCT Test	Max Temp (°C)
Ni Barrel Plating	Ni	Bright Silver	10 - 20	★★★★★	★★★★★	★★★★★	≤200
Ni Rack Plating	Ni	Bright Silver	10 - 20	★★★★	★★★★★	★★★★★
Trivalent Zn Blue White Barrel	Zn	Blue White	5 - 10	★★★★	★★★	★★★	≤160
Trivalent Zn Blue White Rack	Zn	Blue White	5 - 10	★★★	★★★	★★★
Trivalent Color Zn Barrel	Color Zn	Bright Color	5 - 10	★★★		★★★
Trivalent Color Zn Rack	Color Zn	Bright Color	5 - 10	★★★		★★★
Ni + Electroless Ni Barrel	Ni + Chemical Ni	Dark Silver	12 - 20	★★★★★	★★★★★	★★★★	≤200
Ni + Electroless Ni Rack	Ni + Chemical Ni	Dark Silver	12 - 20	★★★★	★★★★★	★★★★
Ni + Cr	Ni + Cr	Dark Black	12 - 20	★★★★	★★★★★	★★★★★	≤200
Teflon Coating	Teflon	Dark Gray		★★★	★★★	★★★	≤200
Ni + Black Ni	Ni + Black Ni	Black	12 - 20	★★★★★	★★★★★	★★★★★	-
Ni + Sn	Ni + Sn	Bright Silver	12 - 20	★★★★	★★★★★	★★★★★	-
Ni + Ag	Ni + Ag	Silver	12 - 20	★★★★	★★★★★	★★★★★	-
Ni + Au	Ni + Au	Gold	10 - 20	★★★★	★★★★★	★★★★★	-
Epoxy Resin	EPOXY	Black	10 - 20	★★★★★	★★★★★	★★★★	≤130
Cu + Epoxy	POXY	Black	15 - 25	★★★★★	★★★★	★★★	≤120
Phosphating / Passivation	phosphatization/Passivation	Dark Gray	1 - 3	—	—	—	≤240
Nano Coating	Nano coating	Transparent	1 - 5	★★★★	★★★★	★★★	≤180

Instructions:

★ = Corrosion resistance level, more stars mean better anti-rust performance. If you have special coating, temperature or anti-corrosion requirements, please consult our technical team for customized surface treatment solutions.

Shanghai King-Nd Magnet Co., Ltd.

NdFeB Magnetic Parameters & Specifications

Magnet Grade Chart

NdFeB Full Performance Parameters Table

Magnet Demagnetization Curves

Plating & Coating Technical Data

Get Custom Coating & Magnet Solution