Y30 Sintered Ferrite Magnet , Ceramic Magnet For Speaker Parts

Delivery Time:15-30 working days for prototype or batch accordingly
Certification:ISO 9001: 2008
Y30 Sintered Ferrite Magnet , Ceramic Magnet For Speaker Parts

Quick Detail:

1.Density –4.95 g/ cm3

2.Manufacturing process –sintering (most common), injection molding and excluding.

3.Various shapes - blocks, bars, discs, rings, arc, segments, sectors, fan shape, cylinders, etc.

Ferrite Magnets (Ceramic magnet) is one of the most cost effective magnetic materials. Composed of Barium or Strontium Ferrite, these materials exhibit good resistance to demagnetization, and are the lowest cost materials available today. It has a fair to good resistance toward corrosion and it can operate in moderate heat. Ceramic (Ferrite) magnets have low energy product and they are usually used in assemblies containing mild steel. Sintered Ferrite magnets are hard and brittle and are extensively used in consumer products. You are probably familiar with ferrite magnets, often used on the back of refrigerator magnets.

Physical characteristics of Permanent Ferrite Magnetic Material
Recoil permeability	1.05-1.3
Curie temperature ℃	450
The coefficient of demagnetization to temperature Br ℃-1	-0.2%(0-100℃)
The coefficient of magnetization coercive force to temperature Hc ℃-1	0.2%-0.5%(0-100℃)
Density g/cm3	4.7-5.0
ResistivityΩ,cm	106
The coefficient of linear expansion ℃-1	7-15×10-6
Hardness HV	480-580

Applications:

Magnetic separators  

DC motors   

Speaker Parts

Magnetic hooks 

Toys  

MRI

Automotive sensors  

Refrigerator magnets  

Educational Magnets

Performance of Ferrite Magnets

SJ/T 10410-93 Standard

Grade	Br	HcB	(BH)max
mT	KG	KA/m	KOe	Kj/m3	MGOe
Y8T	200～235	2.0～2.35	125～160	1.57-2.01	6.5～9.5	0.8-1.2
Y20	320～380	3.2～3.8	135-190	1.70-2.38	18.0-22.0	2.3-2.8
Y22H	310-360	3.1～3.6	220-250	2.77-3.14	20.0-24.0	2.5-3.0
Y23	320-370	3.2～3.7	170-190	2.14-2.38	20.0-25.5	2.5-3.2
Y25	360～400	3.6～4.0	135～170	1.70-2.14	22.5～28.0	2.8-3.5
Y26H	360～390	3.6～3.9	220～250	2.77-3.1