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

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Ferrite magnet, Magnetic strip, Holding magnet, AlNiCo magnet, Magnet

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Alnico Magnet

Material Information

■ Produce by casting or powder metallurgical techniques

■ An alloy composed of matrix of Al-Ni-Fe-Co

■ Very hard & brittle

■ Poor resistance to demagnetization

■ Produce good flux density at a reasonable cost

■ Excellent stability over a wide temperature range

Typical Physical Properties

Parameter


Curie Temperature	^oC	860
Maximum Operating Temperature	^oC	525-550
Hardness	Hv	520-630
Density	g/cm³	6.9-7.3
Relative Recoil Permeability	^rec	1.70-4.70
Saturation Field Strength	kOe (kA/m)	2.7-6.3 (215-500)
Temperature Coefficient of Br	%/°C	-0.025 ~ -0.02
Temperature Coefficient of iHc	%/°C	+0.01 ~ +0.03
Resistivity	uQ.cm	47-54

Typical Magnetic Properties

Max. Energy Product (BH)max.

MGOe 5.5

6.5

7.5

3.9

5.3

3.9

2.9

4.0


Material	Grade	Remanence (Br)	Coercivity (bHc)	Intrinsic Coercivity (iHc)
		Gs	Oe	Oe
	Alnico 5	12,800	640	640
	Alnico 5DG	13,300	670	670
Casted	Alnico 5-7	13,500	740	740
	Alnico 6	10,500	780	800
	Alnico 8	8,200	1,650	1,860
Alnico 5		10,900	620	630
Sintered Alnico 6		9,400	790	820
Alnico 8		7,400	1,500	1,690

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

LOGIN] AG

alnico magnet - LOGIMAG - #1

Ferrite magnet, Magnetic strip, Holding magnet, AlNiCo magnet, Magnet