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Magnets Home > Products > Neodymium Magnets > Disc > D42 Neodymium Magnets, 1/4 inch dia. x 1/8 inch thick

D42 Neodymium Magnets, 1/4 inch dia. x 1/8 inch thick

D42 Neodymium Magnets, 1/4 inch dia. x 1/8 inch thick Inquiry
Item No.: ALB-D42
Material: NdFeB, Grade N42
Shape: Disc
Dimension: 1/4" dia. x 1/8" thick
(6.35mm dia. X 3.18mm thick)
Tolerances: ±0.004" x ±0.004" (±0.1mm x ±0.1mm)
Weight: 0.0266 oz. (0.754 g)
Grade: N42
Coating: Ni-Cu-Ni (nickel)
Pull Force(lbs): 2.30 lbs
Surface Field(Gauss): 4667 Gauss
Magnetization direction: Axial (Poles on Flat Ends)
Max Operating Temp: 80°C
Product Drawing: PDF drawing of ALB-D42 · JPEG drawing of ALB-D42

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Next: D42-N52 Neodymium Magnets, 1/4 inch dia. x 1/8 inch thick

Related Magnets

Other Grade D42 Neodymium Magnets (1/4" dia. x 1/8" thick):

Grade Item No. Product Name Pull Force Inquiry
N35 ALB-D42-N35 D42-N35 Neodymium Magnets 2.35 lbs Inquiry
N38 ALB-D42-N38 D42-N38 Neodymium Magnets 2.35 lbs Inquiry
N40 ALB-D42-N40 D42-N40 Neodymium Magnets 2.55 lbs Inquiry
N42 ALB-D42 D42 Neodymium Magnets 2.80 lbs Inquiry
N45 ALB-D42-N45 D42-N45 Neodymium Magnets 3.01 lbs Inquiry
N48 ALB-D42-N48 D42-N48 Neodymium Magnets 3.24 lbs Inquiry
N50 ALB-D42-N50 D42-N50 Neodymium Magnets 3.38 lbs Inquiry
N52 ALB-D42-N52 D42-N52 Neodymium Magnets 3.52 lbs Inquiry
N42SH ALB-D42SH D42SH Neodymium Magnets 2.80 lbs Inquiry

High Temperature D42 Neodymium Magnets (1/4" dia. x 1/8" 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.  

D42 Neodymium Magnets (1/4" dia. x 1/8" 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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