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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 > Disc > D7X4 Neodymium Magnets, 7/16 inch dia. x 1 1/4 inch thick

D7X4 Neodymium Magnets, 7/16 inch dia. x 1 1/4 inch thick

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Item No.:	ALB-D7X4
Material:	NdFeB, Grade N42
Shape:	Disc
Dimension:	7/16" dia. x 1 1/4" thick (11.11mm dia. X 31.75mm thick)
Tolerances:	±0.004"x ±0.004" (±0.1mmx ±0.1mm)
Weight:	23.095 g
Grade:	N42
Coating:	Ni-Cu-Ni (Nickel)
Pull Force(lbs):	27.36 lbs
Surface Field(Gauss):	6501.2 Gauss
Magnetization direction:	Through Thickness
Max Operating Temp:	80°C
Product Drawing:	·

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Next: D7X8 Neodymium Magnets, 7/16 inch dia. x 1 1/2 inch thick

Related Magnets

Other Grade D7X4 Neodymium Magnets (7/16" dia. x 1 1/4" thick):

Grade	Item No.	Product Name	Pull Force	Inquiry
N35	ALB-D7X4-N35	D7X4-N35 Neodymium Magnets	22.99 lbs	Inquiry
N38	ALB-D7X4-N38	D7X4-N38 Neodymium Magnets	22.99 lbs	Inquiry
N40	ALB-D7X4-N40	D7X4-N40 Neodymium Magnets	24.93 lbs	Inquiry
N42	ALB-D7X4	D7X4 Neodymium Magnets	27.36 lbs	Inquiry
N45	ALB-D7X4-N45	D7X4-N45 Neodymium Magnets	29.47 lbs	Inquiry
N48	ALB-D7X4-N48	D7X4-N48 Neodymium Magnets	31.66 lbs	Inquiry
N50	ALB-D7X4-N50	D7X4-N50 Neodymium Magnets	33.01 lbs	Inquiry
N52	ALB-D7X4-N52	D7X4-N52 Neodymium Magnets	34.39 lbs	Inquiry
N42SH	ALB-D7X4SH	D7X4SH Neodymium Magnets	27.36 lbs	Inquiry

High Temperature D7X4 Neodymium Magnets (7/16" dia. x 1 1/4" 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.

D7X4 Neodymium Magnets (7/16" dia. x 1 1/4" 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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