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Elmet Technologies

Alliance N-42EH Sintered NdFeB Neodymium Magnet
Categories: Metal; Electronic/Magnetic Alloy; Ferrous Metal

Material Notes: Neodymium magnets (NdFeB or Neo), are the most commonly used magnet materials for high tech motors and sensors. They are popular due to their high magnetic strength and resistance to demagnetization. They do not have the high temperature resistance of other magnet materials, however they can be used in applications with maximum operating temperatures of 220°C. Because of a high iron content, they will corrode over time if not plated or coated. As with all magnet materials, NdFeB should never be used as a structural element in an application.

Information provided by Alliance LLC.

Key Words: Neodymium Iron Boron Permanent Magnet
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Physical PropertiesMetricEnglishComments
Density >= 7.50 g/cc>= 0.271 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength 82.7 MPa12000 psi
Modulus of Elasticity 152 GPa22000 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.000160 ohm-cm
@Temperature 20.0 °C
0.000160 ohm-cm
@Temperature 68.0 °F
Magnetic Coercive Force, Hc 12200 - 14200 Oe12200 - 14200 Oe
 30000 - 36000 Oe30000 - 36000 OeIntrinsic
Magnetic Remanence, Br 12900 - 13300 Gauss12900 - 13300 Gauss
Magnetic Maximum Energy Product, BH 40 - 43 MGOe40 - 43 MGOe
Curie Temperature 310 °C590 °F
 
Thermal PropertiesMetricEnglishComments
CTE, linear -4.80 µm/m-°C-2.67 µin/in-°FPerpendicular to M
 3.40 µm/m-°C1.89 µin/in-°FParallel to M
Maximum Service Temperature, Air <= 200 °C<= 392 °FContinuous
 
Descriptive Properties
CompositionNd, B, Fe, Dy, Co
Required Magnetizing Force (Oe)60000
Reversible Temperature Coefficients-0.09α Br. %/°C
 -0.5β Hcj. %/°C

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

NALLIAN30k / 268366

Proto3000 – 3D Engineering Solutions

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