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Compression Bonded SmCo

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(219) 548-3799
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Samarium Cobalt Compression Bonded Magnets are one of the newest types of magnetic materials and are made by compressing an epoxy coated SmCo magnet powder into a final shape and then heat treating it. The result is a high density material which produces a higher magnetic output than by injection molding. Although compression molding provides greater flexibility in geometry shape and size, they do not provide the range of complex geometries which can be achieved by injection molding. The following tables list common grades, however custom grades can be made depending on customers’ requirements.

Compression Bonded SmCo

Magnetic
Properties
Remanence  Coercive
Force
Intrinsic
Coercivity
Energy
Product
Br Hc Hci (BH)max
kGs mT kOe kA/m kOe kA/m MGOe kJ/m
BCS-4 3.8-4.2 380-420 2.5-3.5 200-280 8.0-13.0 640-1030 3.5-4.5 28-36
BCS-5 4.1-5.4 410-540 3.3-4.5 265-360 8.0-15.0 640-1200 4.5-5.5 36-44
BCS-9 6.1-6.6 610-660 5.2-6.0 415-480 8.0-15.0 640-1200 8.5-9.5 68-76
BCS-11 6.4-7.2 640-720 5.4-6.4 430-510 8.0-15.0 640-1200 9.5-11.0 76-88
Temperature
Properties
Reversible Temperature
Coefficient
Max Working Temp. Curie Temperature
%/°C Tmax  Tc
 Bd Hd °C °C
BCS-4 -0.035 -0.29 150 700
BCS-5 -0.035 -0.29 150 700
BCS-9 -0.035 -0.29 150 700
BCS-11 -0.035 -0.29 150 700
Physical
Properties
Density Hardness Compressive Strength  Young’s Modulus Electrical
Resistivity
g/cm3 R Mpa Mpa Ohm-cm
BCS-4 6.4-7.0 80-125 30-32 29000 0.04
BCS-5 6.5-7.0 80-125 30-32 29000 0.04
BCS-9 6.6-7.1 80-125 30-32 29000 0.04
BCS-11 6.7-7.2 80-125 30-32 29000 0.04
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HQ tel: (219) 548-3799
sales@allianceorg.com
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