CHENYANG NdFeB Ring Magnets

Material Grade:

Coating:

Magnetization Direction:

Article-Nr: SW10578
Serial-Nr: M1R08
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NdFeB Ring Magnets

In case of a quotation request please tell us the dimensions the magnets needed. Please write the dimensions according to the following scheme:

OD [outer diameter] x ID [inner diameter] x [height] (e.g. OD20x ID10x5)

General Information

Rare earth permanent magnet NdFeB is a new kind of magnetic material developed in the 1980s with excellent magnetic characteristics (high energy product and high coercive force etc.) and relatively low cost. It is getting to replace the traditional magnets of hard ferrite, AlNiCo, and SmCo in many fields such as electro-acoustic devices, electric motors, sensors/transducers, instruments and meters, auto industry, petrochemical industry, and magnetic health-care products, etc.

Material Information

Produced by powder metallurgical method with chemical composition of Nd2Fe14B
High resistance to demagnetization
High magnetic values (Br, bHc, iHC und (BH)max)
Excellent cost to performance ratio
Reasonable temperature stability
Very brittle & hard
Poorest corrosion resistance of all commercial magnetic materials
Not suitable for application which exposed in high temperature conditions

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Coating:	Nickel, Zinc, Nickel + Nickel, Nickel + Tin, Nickel + Copper + Nickel, Gold, Epoxy, Nickel + Epoxy
Form:	Ring
Magnetization Direction:	axial, diametral
Material:	NdFeB
Material Grade:	N38, N35, N40, N42, N45, N48, N50, N52, N35M, N38M, N40M, N42M, N45M, N48M, N50M, N52M, N35H, N38H, N40H, N42H, N45H, N48H, N50H, N52H, N33SH, N35SH, N38SH, N40SH, N42SH, N45SH, N48SH, N30UH, N33UH, N35UH, N38UH, N40UH, N42UH, N45UH, N30EH, N33EH, N35EH, N38EH, N40EH, N28AH, N30AH, N33AH, N35AH
Curie Temperature (°C):	310-370
Maximum Operating Temperature (°C):	80-240
Resistivity (µ ohm.cm):	160
Hardness (Hv):	560-580
Density (g/cm3 ):	7.40
Relative Recoil Permeability (µrec) :	1.05
Saturation Field Strength, kOe (kA/m) :	30-40 (2400-3200)
Temperature Coefficient of Br (%/°C):	-0.12 ~ -0.10
Temperature Coefficient of iHc (%/°C) :	-0.6