烧结钕铁硼永磁体的牌号与性能

作者： nlymagnet / 2025年1月2日

烧结钕铁硼永磁体根据内禀矫顽力HcJ的不同可分为七个系列：N、M、H、SH、UH、EH和AH(TH)，每个系列中根据磁体剩磁Br和最大磁能积BH(max)的大小再细分牌号。

▪ 数字代表产品的最大磁能积(BH)max，数字越大最大磁能积越大

▪ 字母代表内禀矫顽力的分类，越靠后的系列内禀矫顽力越大

STANDARD SPECIFICATION FOR SINTERED NdFeB MAGNETS
类别 Item	牌号 Grade	剩磁 Remanence(Br)		磁感矫顽力 (Hcb)		内禀矫顽力 (Hcj)		((BH)m)最大磁能积 Product		工作温度 Tempe	温度系数 Temp Coeff		方形度 square degree
		kGs	T	kOe	kA/m	koe	kA/m	MGOe	kJ/m³	L/D=0.7(℃)	α（Br）	β（Hcj）	HK/HCJ %
		kGs	T	kOe	kA/m	koe	kA/m	MGOe	kJ/m³	L/D=0.7(℃)	%/K	%/K	HK/HCJ %
N	N35	11.8-12.3	1.18-1.23	≥10.8	≥860	≥12	≥955	33-36	263-287	≤80	-0.12	-0.65	95
	N38	12.3-12.8	1.23-1.28	≥10.8	≥860	≥12	≥955	36-39	287-310	≤80	-0.12	-0.65	95
	N40	12.6-13.1	1.26-1.31	≥10.8	≥860	≥12	≥955	38-41	302-326	≤80	-0.12	-0.65	95
	N42	12.9-13.4	1.29-1.34	≥10.8	≥860	≥12	≥955	40-43	318-342	≤80	-0.12	-0.65	95
	N45	13.3-13.8	1.33-1.38	≥10.8	≥860	≥12	≥955	43-46	342-366	≤80	-0.12	-0.65	95
	N48	13.7-14.2	1.37-1.42	≥10.5	≥836	≥12	≥955	45-49	358-390	≤80	-0.12	-0.65	95
	N50	13.9-14.4	1.39-1.44	≥10.5	≥836	≥12	≥955	47-51	374-406	≤80	-0.12	-0.65	95
	N52	14.2-14.7	1.42-1.47	≥10.5	≥836	≥12	≥955	49-53	390-422	≤80	-0.12	-0.65	95
	N54	14.5-15.0	1.45-1.50	≥10.5	≥836	≥11	≥875	51-55	406-438	≤80	-0.12	-0.65	95
	N55	14.7-15.2	1.47-1.52	≥10.5	≥836	≥11	≥875	52-56	414-446	≤60	-0.12	-0.65	95
M	38M	12.3-12.8	1.23-1.28	≥11	≥876	≥14	≥1114	36-39	287-310	≤100	-0.12	-0.6	95
	40M	12.6-13.1	1.26-1.31	≥11.4	≥910	≥14	≥1114	38-41	302-326	≤100	-0.12	-0.6	95
	42M	12.9-13.4	1.29-1.34	≥11.8	≥938	≥14	≥1114	40-43	318-342	≤100	-0.12	-0.6	95
	45M	13.3-13.8	1.33-1.38	≥12.2	≥971	≥14	≥1114	43-46	342-366	≤100	-0.12	-0.6	95
	48M	13.7-14.2	1.37-1.42	≥12.7	≥1012	≥14	≥1114	45-49	358-390	≤100	-0.12	-0.6	95
	50M	13.9-14.4	1.39-1.44	≥13.1	≥1043	≥14	≥1114	47-51	374-406	≤100	-0.12	-0.6	95
	52M	14.2-14.7	1.42-1.47	≥13.1	≥1043	≥13	≥1035	49-53	390-422	≤100	-0.12	-0.6	95
	54M	14.4-14.9	1.44-1.49	≥13.1	≥1043	≥13	≥1035	50-55	398-438	≤100	-0.12	-0.6	95
	56M	14.6-15.0	1.46-1.50	≥13.1	≥1043	≥13	≥1035	51-56	406-446	≤100	-0.12	-0.6	95
H	35H	1.18-1.23	1.18-1.23	≥11.0	≥876	≥17	≥1353	33-36	263-287	≤120	-0.11	-0.55	95
	38H	12.3-12.8	1.23-1.28	≥11.4	≥910	≥17	≥1353	36-39	287-310	≤120	-0.11	-0.55	95
	40H	12.6-13.1	1.26-1.31	≥11.7	≥930	≥17	≥1353	38-41	302-326	≤120	-0.11	-0.55	95
	42H	12.9-13.4	1.29-1.34	≥12	≥957	≥17	≥1353	40-43	318-342	≤120	-0.11	-0.55	95
	45H	13.3-13.8	1.33-1.38	≥12.5	≥995	≥17	≥1353	43-46	342-366	≤120	-0.11	-0.55	95
	48H	13.7-14.2	1.37-1.42	≥12.8	≥1000	≥16	≥1274	45-49	358-390	≤120	-0.11	-0.55	95
	50H	13.9-14.4	1.39-1.44	≥13	≥1035	≥16	≥1274	47-51	374-406	≤120	-0.11	-0.55	95
	52H	14.2-14.7	1.42-1.47	≥13.1	≥1042	≥16	≥1274	49-53	390-422	≤120	-0.11	-0.55	95
	54H	14.4-14.9	1.44-1.49	≥13.5	≥1075	≥16	≥1274	50-55	398-438	≤120	-0.11	-0.55	95
	56H	14.6-15.0	1.46-1.50	≥13.7	≥1091	≥16	≥1274	52-56	422-454	≤120	-0.11	-0.55	95
SH	33SH	11.4-11.9	1.14-1.19	≥10.5	≥836	≥20	≥1592	31-34	247-271	≤150	-0.11	-0.55	95
	35SH	11.8-12.3	1.18-1.23	≥11	≥876	≥20	≥1592	33-36	263-287	≤150	-0.11	-0.55	95
	38SH	12.3-12.8	1.23-1.28	≥11.1	≥886	≥20	≥1592	36-39	287-310	≤150	-0.11	-0.55	95
	40SH	12.6-13.1	1.26-1.31	≥11.5	≥912	≥20	≥1592	38-41	302-326	≤150	-0.11	-0.55	95
	42SH	12.9-13.4	129-1.34	≥12.2	≥971	≥20	≥1592	40-43	318-342	≤150	-0.11	-0.55	95
	45SH	13.3-13.8	1.33-1.38	≥12.5	≥995	≥20	≥1592	43-46	342-366	≤150	-0.11	-0.55	95
	48SH	13.7-14.2	1.37-1.42	≥12.8	≥1035	≥19	≥1512	45-49	358-390	≤150	-0.11	-0.55	95
	50SH	13.9-14.4	1.39-1.44	≥13.1	≥1042	≥19	≥1512	46-51	366-406	≤150	-0.11	-0.55	95
	52SH	14.2-14.7	1.42-1.47	≥13.3	≥1059	≥19	≥1512	49-53	390-422	≤150	-0.11	-0.55	95
	54SH	14.4-14.9	1.44-1.49	≥13.5	≥1075	≥19	≥1512	50-55	398-438	≤150	-0.11	-0.55	95
	56SH	14.6-15.0	1.46-1.50	≥13.7	≥1091	≥19	≥1512	52-56	422-454	≤150	-0.11	-0.55	95
UH	33UH	11.4-11.9	1.14-1.19	≥10.3	≥816	≥25	≥1990	31-34	247-271	≤180	-0.11	-0.51	95
	35UH	11.8-12.3	1.18-1.23	≥10.6	≥845	≥25	≥1990	33-36	263-287	≤180	-0.11	-0.51	95
	38UH	12.3-12.8	1.23-1.28	≥11.1	≥866	≥25	≥1990	36-39	287-310	≤180	-0.11	-0.51	95
	40UH	12.6-13.1	1.26-1.31	≥11.5	≥912	≥25	≥1990	38-41	302-326	≤180	-0.11	-0.51	95
	42UH	12.9-13.4	1.29-1.34	≥11.8	≥938	≥25	≥1990	40-43	318-342	≤180	-0.11	-0.51	95
	45UH	13.3-13.8	1.33-1.38	≥12.2	≥976	≥24	≥1911	43-46	342-366	≤180	-0.11	-0.51	95
	48UH	13.6-14.1	1.36-1.41	≥12.2	≥976	≥24	≥1911	45-49	358-390	≤180	-0.11	-0.51	95
	50UH	13.9-14.4	1.39-1.44	≥12.8	≥1035	≥24	≥1911	46-51	366-406	≤180	-0.11	-0.51	95
	52UH	14.2-14.7	1.42-1.47	≥13.1	≥1042	≥24	≥1911	49-53	390-422	≤180	-0.11	-0.51	95
	54UH	14.4-14.9	1.44-1.49	≥13.5	≥1075	≥24	≥1911	51-55	406-438	≤180	-0.11	-0.51	95
EH	30EH	10.8-11.4	1.08-1.14	≥9.5	≥756	≥30	≥2388	28-31	223-247	≤200	-0.11	-0.48	95
	33EH	11.4-11.9	1.14-1.19	≥10.3	≥816	≥30	≥2388	31-34	247-271	≤200	-0.11	-0.48	95
	35EH	11.8-12.3	1.18-1.23	≥11.1	≥883	≥30	≥2388	33-36	263-287	≤200	-0.11	-0.48	95
	38EH	12.2-12.7	1.22-1.27	≥11.6	≥923	≥30	≥2388	35-39	279-310	≤200	-0.11	-0.48	95
	40EH	12.5-13.0	1.28-1.30	≥11.9	≥947	≥30	≥2388	37-41	295-326	≤200	-0.11	-0.48	95
	42EH	12.8-13.3	1.28-1.33	≥12.2	≥971	≥29	≥2308	39-43	310-342	≤200	-0.11	-0.48	95
	45EH	13.2-13.7	1.32-1.37	≥12.5	≥995	≥29	≥2308	41-46	326-366	≤200	-0.11	-0.48	95
	48EH	13.6-14.1	1.36-1.41	≥12.9	≥1027	≥29	≥2308	45-49	358-390	≤200	-0.11	-0.48	95
	50EH	13.9-14.4	1.39-1.44	≥13.1	≥1043	≥29	≥2308	47-51	374-406	≤200	-0.11	-0.48	95
AH	28AH	10.2-10.8	10.2-10.8	≥9.8	≥780	≥34	≥2706	25-28	207-231	≤230	-0.11	-0.45	95
	30AH	10.7-11.3	10.7-11.3	≥10.2	≥812	≥34	≥2706	27-31	215-247	≤230	-0.11	-0.45	95
	33AH	11.1-11.7	11.1-11.7	≥10.3	≥820	≥34	≥2706	30-34	239-271	≤230	-0.11	-0.45	95
	35AH	11.7-12.2	11.7-12.2	≥10.5	≥836	≥34	≥2706	33-36	263-287	≤230	-0.11	-0.45	95
	38AH	12.2-12.5	12.2-12.5	≥10.5	≥836	≥34	≥2706	35-39	279-310	≤230	-0.11	-0.45	95