Alnico Rectangular Magnets

Alnico Rectangular Magnets

We stock Alnico Rectangular magnets in both Grade 5 and Grade 8. Alnico 8 magnets have a lower remanence, but a higher coercivity than Alnico 5 magnets. This means that Alnico 5, though stronger in the right circumstances, is easier to demagnetize. Alnico 5 rectangular magnets should have a length to equivalent diameter ratio of about 4 to 1 in order to avoid self-demagnetization.

Alnico Grade 8 Bars
Item Number	Height	Width	Length*	Comments
8SB8	0.125	0.125	L
S8SB0848	0.125	0.125	0.75	Sintered
S8RB816	0.125	0.250	0.50	Sintered
8RB824-820	0.125	0.375	0.82
8SB12	0.187	0.187	L
8SB16	0.250	0.250	L
8RB1632	0.250	0.500	L
9RB1634	0.255	0.650	0.65	Grade 9
8ARB3381	0.522	4.770	1.27
8SB48	0.750	0.750	L

Alnico Grade 5 Bars

Item Number

Height

Width

Length*

Comments

S5SB432

0.062

0.50

Sintered

S5SB448

0.062

0.75

Sintered

S5SB838

0.125

0.60

Sintered

S5SB848

0.125

0.75

Sintered

SB8

0.125

RB816

0.125

0.250

RBG824

0.125

0.375

RB832

0.125

0.500

RB832-1000

0.125

0.500

1.00

RB832-4

0.125

0.500

MC157515

0.125

0.750

1.50

Rounded corners

RB848

0.125

0.750

ARB848

0.125

6.000

0.75

SB9

0.140

RB917

0.140

0.265

SB12-4

0.187

SBG12

0.187

RB1325

0.203

0.390

RB1348

0.203

0.765

RB1349

0.203

0.780

SB14

0.215

S5SB1672

0.240

1.13

SB16	0.250	0.250	L
SB16-1000	0.250	0.250	1.00
SB16-1250	0.250	0.250	1.25
RB1632	0.250	0.500	L
RB1632-1625	0.250	0.500	1.63
ARB1656	0.250	2.500	0.88
ARB1664-9	0.250	9.375	1.00
RB1822	0.275	0.344	L
RB1850	0.275	0.775	L
SB21	0.328	0.328	L
SB24	0.375	0.375	L
SB26	0.400	0.400	L
RB2650	0.400	0.780	L
SB29	0.460	0.460	L
SB32	0.500	0.500	L
RB3296	0.500	1.500	L
SB38	0.600	0.600	L
SB42	0.660	0.660	L
SB48	0.750	0.750	L
SB50	0.785	0.785	L
RB3059	0.925	0.475	L
SB64	1.000	1.000	L
*Note: Where the length is shown as "L", the raw bars are between 4" and 8" long. Required lengths can be cut from these raw bars.