Alliance N-44UH Sintered NdFeB Neodymium Magnet

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Alliance N-44UH 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 Properties	Metric	English	Comments

Density	>= 7.50 g/cc	>= 0.271 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength	82.7 MPa	12000 psi
Modulus of Elasticity	152 GPa	22000 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000160 ohm-cm @Temperature 20.0 °C	0.000160 ohm-cm @Temperature 68.0 °F
Magnetic Coercive Force, H_c	12300 - 14300 Oe	12300 - 14300 Oe
	25000 - 32000 Oe	25000 - 32000 Oe	Intrinsic
Magnetic Remanence, B_r	13300 - 13500 Gauss	13300 - 13500 Gauss
Magnetic Maximum Energy Product, BH	42 - 45 MGOe	42 - 45 MGOe
Curie Temperature	310 °C	590 °F

Thermal Properties	Metric	English	Comments
CTE, linear	-4.80 µm/m-°C	-2.67 µin/in-°F	Perpendicular to M
	3.40 µm/m-°C	1.89 µin/in-°F	Parallel to M
Maximum Service Temperature, Air	<= 180 °C	<= 356 °F	Continuous

Descriptive Properties
Reversible Temperature Coefficients	-0.1		α Br. %/°C
	-0.55		β 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.

NALLIAN27m / 268359

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