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ALB Materials Inc
2360 Corporate Circle. Suite 400
Henderson, NV 89074-7739
United States
E-mail: sales@albmagnets.com

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Magnets Home > Products > Neodymium Magnets > Cylinder > D4E Neodymium Magnets, 1/4 inch dia. x 7/8 inch thick

D4E Neodymium Magnets, 1/4 inch dia. x 7/8 inch thick

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Item No.:	ALB-D4E
Material:	NdFeB, Grade N42
Shape:	Cylinder
Dimension:	1/4" dia. x 7/8" thick (6.35mm dia. X 22.23mm thick)
Tolerances:	±0.004" x ±0.004" (±0.1mm x ±0.1mm)
Weight:	0.186 oz. (5.28 g)
Grade:	N42
Coating:	Ni-Cu-Ni (Nickel)
Pull Force(lbs):	4.09 lbs
Surface Field(Gauss):	6534 Gauss
Magnetization direction:	Axial (Poles on Flat Ends)
Max Operating Temp:	80°C
Product Drawing:	·

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Related Magnets

Other Grade D4E Neodymium Magnets (1/4" dia. x 7/8" thick):

Grade	Item No.	Product Name	Pull Force	Inquiry
N35	ALB-D4E-N35	D4E-N35 Neodymium Magnets	8.79 lbs	Inquiry
N38	ALB-D4E-N38	D4E-N38 Neodymium Magnets	8.79 lbs	Inquiry
N40	ALB-D4E-N40	D4E-N40 Neodymium Magnets	9.53 lbs	Inquiry
N42	ALB-D4E	D4E Neodymium Magnets	10.46 lbs	Inquiry
N45	ALB-D4E-N45	D4E-N45 Neodymium Magnets	11.26 lbs	Inquiry
N48	ALB-D4E-N48	D4E-N48 Neodymium Magnets	12.10 lbs	Inquiry
N50	ALB-D4E-N50	D4E-N50 Neodymium Magnets	12.62 lbs	Inquiry
N52	ALB-D4E-N52	D4E-N52 Neodymium Magnets	13.14 lbs	Inquiry
N42SH	ALB-D4ESH	D4ESH Neodymium Magnets	10.46 lbs	Inquiry

High Temperature D4E Neodymium Magnets (1/4" dia. x 7/8" thick) are also available:

Neodymium Material Type	Maximum Operating Temp	Curie Temp
N (N35-N52)	176°F (80°C)	590°F (310°C)
NM (N35M-N52M)	212°F (100°C)	644°F (340°C)
NH (N33H-N52H)	248°F (120°C)	644°F (340°C)
NSH (N30SH-N50SH)	302°F (150°C)	644°F (340°C)
NUH (N28UH-N48UH)	356°F (180°C)	662°F (350°C)
NEH (N28EH-N48EH)	392°F (200°C)	662°F (350°C)
NAH (N28AH-N35AH)	428°F (220°C)	662°F (350°C)

The Thermal Characteristics listed above are values commonly associated with each magnet's grade or material. Actual performance in your application may vary with other factors, including the shape of the magnet, the Permeance Coefficient or load line, and how it is used in a circuit.

D4E Neodymium Magnets (1/4" dia. x 7/8" thick) with other Coating are also available:

Coating Type	Overall Thickness	Salt Spray Test	Pressure Cooker Test
Ni-Cu-Ni (Nickel)	15-21 μm	24 hours	48 hours
NiCu + Black Nickel	15-21 μm	24 hours	48 hours
NiCuNi + Epoxy	20-28 μm	48 hours	72 hours
NiCuNi + Gold	16-23 μm	36 hours	72 hours
NiCuNi + Silver	16-23 μm	24 hours	48 hours
Zinc	7-15 μm	12 hours	24 hours

Each individual layer of Nickel and Copper are 5-7 μm thick. The Gold and Silver Coating layers are 1-2 μm thick. Test results shown to allow comparison between Coating options. Performance in your application under your specific test conditions may vary. Salt Spray testing conducted with a 5% NaCl solution, at 35°C. Pressure Cooker Test (PCT) conducted at 2 atm, 120°C at 100% RH.

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