DD8 Neodymium Magnets, 13/16 inch dia. x 1/2 inch thick

Item No.: ALB-DD8
Material: NdFeB, Grade N42
Shape: Disc
Dimension: 13/16" dia. x 1/2" thick
(20.64mm dia. X 12.7mm thick)
Tolerances: ±0.004" x ±0.004" (±0.1mm x ±0.1mm)
Weight: 1.124 oz. (31.9 g)
Grade: N42
Coating: Ni-Cu-Ni (Nickel)
Pull Force(lbs): 32.09 lbs
Surface Field(Gauss): 5121 Gauss
Magnetization direction: Axial (Poles on Flat Ends)
Max Operating Temp: 80°C
Product Drawing: PDF drawing of ALB-DD8 · JPEG drawing of ALB-DD8

Other Grade DD8 Neodymium Magnets (13/16" dia. x 1/2" thick):

Grade Item No. Product Name Pull Force Inquiry
N35 ALB-DD8-N35 DD8-N35 Neodymium Magnets 30.57 lbs Inquiry
N38 ALB-DD8-N38 DD8-N38 Neodymium Magnets 30.57 lbs Inquiry
N40 ALB-DD8-N40 DD8-N40 Neodymium Magnets 33.15 lbs Inquiry
N42 ALB-DD8 DD8 Neodymium Magnets 36.38 lbs Inquiry
N45 ALB-DD8-N45 DD8-N45 Neodymium Magnets 39.19 lbs Inquiry
N48 ALB-DD8-N48 DD8-N48 Neodymium Magnets 42.11 lbs Inquiry
N50 ALB-DD8-N50 DD8-N50 Neodymium Magnets 43.90 lbs Inquiry
N52 ALB-DD8-N52 DD8-N52 Neodymium Magnets 45.74 lbs Inquiry
N42SH ALB-DD8SH DD8SH Neodymium Magnets 36.38 lbs Inquiry

High Temperature DD8 Neodymium Magnets (13/16" 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.  

DD8 Neodymium Magnets (13/16" 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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providing you with reliable N35, N38, N42, N52, N42SH and other grade super neodymium magnets and SmCo rare earth magnets.

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