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Magnets Home > Products > Neodymium Magnets > Disc > D55 Neodymium Magnets, 5/16 inch dia. x 5/16 inch thick

D55 Neodymium Magnets, 5/16 inch dia. x 5/16 inch thick

D55 Neodymium Magnets, 5/16 inch dia. x 5/16 inch thick Inquiry
Item No.: ALB-D55
Material: NdFeB, Grade N42
Shape: Disc
Dimension: 5/16" dia. x 5/16" thick
(7.94mm dia. X 7.94mm thick)
Tolerances: ±0.004" x ±0.004" (±0.1mm x ±0.1mm)
Weight: 0.104 oz. (2.95 g)
Grade: N42
Coating: Ni-Cu-Ni (Nickel)
Pull Force(lbs): 5.44 lbs
Surface Field(Gauss): 5903 Gauss
Magnetization direction: Axial (Poles on Flat Ends)
Max Operating Temp: 80°C
Product Drawing: PDF drawing of ALB-D55 · JPEG drawing of ALB-D55

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Next: D55-N52 Neodymium Magnets, 5/16 inch dia. x 5/16 inch thick

Related Magnets

Other Grade D55 Neodymium Magnets (5/16" dia. x 5/16" thick):

Grade Item No. Product Name Pull Force Inquiry
N35 ALB-D55-N35 D55-N35 Neodymium Magnets 7.18 lbs Inquiry
N38 ALB-D55-N38 D55-N38 Neodymium Magnets 7.18 lbs Inquiry
N40 ALB-D55-N40 D55-N40 Neodymium Magnets 7.78 lbs Inquiry
N42 ALB-D55 D55 Neodymium Magnets 8.54 lbs Inquiry
N45 ALB-D55-N45 D55-N45 Neodymium Magnets 9.20 lbs Inquiry
N48 ALB-D55-N48 D55-N48 Neodymium Magnets 9.88 lbs Inquiry
N50 ALB-D55-N50 D55-N50 Neodymium Magnets 10.31 lbs Inquiry
N52 ALB-D55-N52 D55-N52 Neodymium Magnets 10.74 lbs Inquiry
N42SH ALB-D55SH D55SH Neodymium Magnets 8.54 lbs Inquiry

High Temperature D55 Neodymium Magnets (5/16" dia. x 5/16" 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.  

D55 Neodymium Magnets (5/16" dia. x 5/16" 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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