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

D78-N52 Neodymium Magnets, 7/16" dia. x 1/2" thick

Item No.:ALB-D78-N52
Material:NdFeB, Grade N52
Shape:Cylinder
Dimension:7/16" dia. x 1/2" thick
Tolerances:±0.004" x ±0.004"
Weight:9.24 g
Grade:N52
Coating:Ni-Cu-Ni (Nickel)
Pull Force(lbs):14.30 lbs
Surface Field(Gauss):6780 Gauss
Magnetization direction:Axial (Poles on Flat Ends)
Max Operating Temp:80°C

Other Grade D78 Neodymium Magnets (7/16" dia. x 1/2" thick):

Grade Item No. Product Name Pull Force Inquiry
N35 ALB-D78-N35 D78-N35 Neodymium Magnets 14.54 lbs Inquiry
N38 ALB-D78-N38 D78-N38 Neodymium Magnets 14.54 lbs Inquiry
N40 ALB-D78-N40 D78-N40 Neodymium Magnets 15.76 lbs Inquiry
N42 ALB-D78 D78 Neodymium Magnets 17.30 lbs Inquiry
N45 ALB-D78-N45 D78-N45 Neodymium Magnets 18.64 lbs Inquiry
N48 ALB-D78-N48 D78-N48 Neodymium Magnets 20.02 lbs Inquiry
N50 ALB-D78-N50 D78-N50 Neodymium Magnets 20.88 lbs Inquiry
N52 ALB-D78-N52 D78-N52 Neodymium Magnets 21.75 lbs Inquiry
N42SH ALB-D78SH D78SH Neodymium Magnets 17.30 lbs Inquiry

High Temperature D78 Neodymium Magnets (7/16" dia. x 1/2" 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.  

D78 Neodymium Magnets (7/16" dia. x 1/2" 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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