sintered ferrite magnet - LOGIMAG - (Version JPG) - PDF Catalogue | Technical Documentation

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Magnet, Neodymium magnet, Ferrite magnet, AlNiCo magnet, Flexible magnet

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Sintered Ferrite Magnet

Material Information

■ Produce by powder metallurgical method

■ Chemical composition of Ba/Sr O₂ Fe₂O₃

■ Relatively brittle & hard

■ Good resistance to demagnetization

■ Excellent corrosion resistance

■ Raw material is readily available & low in cost

■ Good temperature stability

■ Most widely used permanent magnets.

Typical Physical Properties


Parameter
Curie Temperature	^oC	450
Maximum Operating Temperature	^oC	250
Hardness	Hv	480 - 580
Density	g/cm³	4.8 - 4.9
Relative Recoil Permeability	^rec	1.05 - 1.20
Saturation Field Strength	kOe (kA/m)	10 (800)
Temperature Coefficient of Br	%/°C	-0.2
Temperature Coefficient of iHc	%/°C	0.3
Tensile Strength	N/mm²	< 100
Transverse Rupture Strength	N/mm²	300
Typical Magnetic Properties

Max. Energy Product (BH)max.

Remanence (Br)

Coercivity (bHc) Intrinsic Coercivity (iHc)

Isotropic

Grade


	Anisotropic	mT	Gs	kA/m	Oe	KA/m	Oe	KJ/m³	MGOe
Y10	Isotropic	200-235	2,000-2,350	125-160	1,570-2,010	210-280	2,640-3,520	6.5-9.5	0.8-1.2
Y25	Anisotropic	360-400	3,600-4,000	135-170	1,700-2,140	140-200	1,760-2,510	22.5-28.0	2.8-3.5
Y30	Anisotropic	370-400	3,700-4,000	175-210	2,200-2,640	180-220	2,260-2,770	26.0-30.0	3.3-3.8
Y30BH	Anisotropic	380-400	3,800-4,000	230-275	2,890-3,460	235-290	2,950-3,650	27.0-32.5	3.4-4.1
Y33	Anisotropic	410-430	4,100-4,300	220-250	2,770-3,140	225-255	2,830-3,210	31.5-35.0	4.0-4.4

Y35 Anisotropic 400-420 4,000-4,200 160-190 2,010-2,380 165-195 2,070-2,450 30.0-33.5 3.8-4.0

LOGIMAG Ltd.

Unit A5, 5/F., Phase6, Hong Kong Spinners Industrial Building., 481 Castle Peak Road, Cheung Sha Wan, Kowloon, Hong Kong. tel: +852 23100838 fax:+852 23100883 email: info@logimag.com url: www.logimag.com

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sintered ferrite magnet - LOGIMAG - #1

Magnet, Neodymium magnet, Ferrite magnet, AlNiCo magnet, Flexible magnet