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FERRITE POWDER

OM ferrite powders were provided for ceramic magnets include Sr-ferrite (SrFe₁₂O₁₉) and Ba-ferrite (BaFe₁₂O₁₉). OM magnetic materials are divided into three catalogues (pellets, coarse powder and fine powder) and 24 brands, for making ceramic magnets of both isotropic and anisotropic, and for both dry and wet pressing.

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PERMANENT MAGNETIC FERRITE FELT POWDER

Type	Material	Qualified standard of magnetic property				Average size of fine powder ( um )	Water content of fine powder ( % )
Type	Material	Br (mT)	HcB (kA/m)	HcJ (kA/m)	(BH)max (kJ/m³)	Average size of fine powder ( um )	Water content of fine powder ( % )
BMXF-1	BaFe12O19	≥135	-	≥183	-	2-4	≤0.5
BMXF-1	BaFe12O19	≥150	≥95	≥167	≥3.58
BMXF-2	BaFe12O19	≥140	-	≥183	-	1.1-1.4	≤0.5
BMXF-2	BaFe12O19	≥180	≥115	≥167	≥5.57
BMXF-2b	BaFe12O19	≥145	-	≥160	-	1.5-1.8	≤0.5
BMXF-2b	BaFe12O19	≥180	≥107	≥143	≥5.17
BMXF-2c	BaFe12O19	≥145	-	≥160	-	1.8-2.1	≤0.5
BMXF-2c	BaFe12O19	≥180	≥107	≥143	≥5.17
BMXF-2S	BaFe12O19	≥145	-	≥183	-	1.1-1.4	≤0.5
BMXF-2S	BaFe12O19	180	≥115	≥167	≥5.57
BMXF-2Sb	BaFe12O19	≥145	-	≥160	-	1.5-1.8	≤0.5
BMXF-2Sb	BaFe12O19	180	≥107	≥143	≥5.17
BMXF-2Sc	BaFe12O19	≥145	-	≥160	-	1.8-2.1	≤0.5
BMXF-2Sc	BaFe12O19	≥180	≥107	≥143	≥5.17
BMXF-3	BaFe12O19	≥140	-	≥215	-	1.3-1.6	≤0.5
BMXF-3	BaFe12O19	≥240	≥160	≥207	≥10.34
BMXF-4	BaFe12O19	≥140	-	≥263	-	1.3-1.6	≤0.5
BMXF-4	BaFe12O19	≥240	≥160	≥207	≥10.34
BMXF-4b	BaFe12O19	≥140	-	≥280	-	1.0-1.3	≤0.5
BMXF-4b	BaFe12O19	≥240	≥167	≥239	≥11.1

PERMANENT MAGNETIC FERRITE SINTERED POWDER

Type	Material	Qualified standard of magnetic property				Rate of shrinkage （%）	Average size Fine powder （um）	Water content of fine powder （%）	Name used before	Remarks
Type	Material	Br(mT)	HcB(kA/m	HcJ(kA/m)	(BH)max(kJ/m3)	Rate of shrinkage （%）	Average size Fine powder （um）	Water content of fine powder （%）	Name used before	Remarks
BMS-2.4B	Strontium ferrite	≥370	≥167	≥183	≥25.5	15±1	0.80-0.90	≤0.5	None	Heteromorphic dry pressure fine powder, made of BMS-4B
BMS-2.4	Strontium ferrite	≥350	≥215	≥223	≥23.0	15.5±1	0.80-0.90	≤0.5	Sr dry pressure heteromorphic powder	Heteromorphic dry pressure fine powder, made of BMS-4B
BMS-2.4H	Strontium ferrite	≥330	≥239	≥255	≥19.9	15±1	0.80-0.90	≤0.5	None	Heteromorphic dry pressure fine powder, made of BMS-4H
BMS-2.4E	Strontium ferrite	≥310	≥223	≥294	≥17.5	15±1	0.80-0.90	≤0.5	None	Heteromorphic dry pressure fine powder, made of BMS-4E
BMS-2.5B	Strontium ferrite	≥390	≥175	≥183	≥28.7	15.5±1	0.80-0.90	≤0.5	None	Heteromorphic dry pressure fine powder, made of BMS-5B
BMS-2.5	Strontium ferrite	≥370	≥207	≥223	≥25.5	15.5±1	0.80-0.90	≤0.5	None	Heteromorphic dry pressure fine powder, made of BMS-5
BMS-2.5H	Strontium ferrite	≥350	≥247	≥279	≥22.3	15±1	0.80-0.90	≤0.5	None	Heteromorphic dry pressure fine powder, made of BMS-5H
BMS-2.5E	Strontium ferrite	≥330	≥239	≥318	≥19.9	15±1	0.80-0.90	≤0.5	None	Heteromorphic dry pressure fine powder, made of BMS-5E
BMS-2.5U	Strontium ferrite	≥310	≥223	≥374	≥17.5	15±1	0.80-0.90	≤0.5	None	Heteromorphic dry pressure fine powder, made of BMS-5U
BMS-4B	Strontium ferrite	≥400	≥175	≥183	≥30.2	13±1	0.80-0.90	≤0.5	None	Heteromorphic wet pressure fine powder
BMS-4H	Strontium ferrite	≥360	≥243	≥263	≥25.5	13±1	0.80-0.90	≤0.5	None	Heteromorphic wet pressure fine powder
BMS-4E