14 years experience expert of stable permanent magnet supplier

D20xd16x20mm N42 Neodymium Round Magnet With Hole

Product ID NMR2020
Material NdFeB
Shape Ring
Grade N42
Outer Diameter 20mm
Inner Diameter 16mm
Thickness 20mm
Coating Nickel-Copper-Nickel
Magnetization Direction Through thickness
Tolerance ±0.05mm x ±0.05mm x ±0.05mm
Weight(g) 17
Max Operating Temp (°C / °F) 80 / 176
SEND INQUIRY

You can make an inquiry about this product.
Your e-mail will not be leaked.

  • PRODUCT DETAIL
  • MAGNETIC PROPERTIES
  • video
  • certification

Description of D20xd16x20mm N42 Nickel Coating Neodymium Round Magnet With Hole

Grade N42
Dimension D20xd16x20mm
Coating Ni-Cu-Ni
Magnetzied direction Through thickness
Tolerance ±0.05mm
Weight 17g/pc
Temperature max 80°c
Package Vacuum bag + Box + Foam + Carton
Shipping Courier or Sea or Air

D20xd16x20mm with Nickel coating, magnetized through height. Not only for hanging photos or calendar, it enen can be used as key holders. Use your imagniation ,the uses are endless. Let me tell you a tip, an electronic stud finder can be hit or miss when it comes to locating studs behind walls so why not use a magnet to do the searching instead. A strong magnet can easily find the nails or screws holding the stud and wall together.

Application
Magnet Application

Comparison of Products
Comparison of magnet

Comparison of Packaging
Comparison of magnet packaging

MAGNETIC PROPERTIES

Grade Residual Induction Br Coercive Force HcB Intrinsic Coercive Hcj Energy Product(BH)max Max Working Temp.
Kgs T KOe KA/m Koe KA/m MGOe KJ/m L/D≥0.7
Max Min Max Min Min Min Min Min Max Min Max Min
N35 12.30 11.80 1.23 1.18 ≥10.9 ≥868 ≥12 ≥955 36 33 287 263 ≤80
N38 12.60 12.30 1.26 1.23 ≥11.3 ≥899 ≥12 ≥955 39 36 311 287 ≤80
N40 12.90 12.60 1.29 1.26 ≥11.4 ≥907 ≥12 ≥955 41 38 327 302 ≤80
N42 13.30 12.90 1.33 1.29 ≥11.5 ≥915 ≥12 ≥955 43 40 342 318 ≤80
N45 13.70 13.30 1.37 1.33 ≥11.0 ≥876 ≥12 ≥955 46 43 366 342 ≤80
N48 14.10 13.70 1.41 1.37 ≥10.5 ≥836 ≥11 ≥876 49 45 390 358 ≤80
N50 14.50 14.00 1.45 1.40 ≥10.5 ≥836 ≥11 ≥876 51 47 406 374 ≤60
N52 14.80 14.30 1.48 1.43 ≥10.5 ≥836 ≥11 ≥876 53 49 422 390 ≤60
35M 12.30 11.80 1.23 1.18 ≥10.9 ≥868 ≥14 ≥1114 36 34 287 271 ≤100
38M 12.60 12.30 1.26 1.23 ≥11.3 ≥899 ≥14 ≥1114 39 36 311 287 ≤100
40M 12.90 12.60 1.29 1.26 ≥11.6 ≥923 ≥14 ≥1114 41 38 327 302 ≤100
42M 13.30 12.90 1.33 1.29 ≥12.0 ≥955 ≥14 ≥1114 43 40 342 318 ≤100
45M 13.70 13.30 1.37 1.33 ≥12.5 ≥995 ≥14 ≥1114 46 43 366 342 ≤100
48M 14.10 13.70 1.41 1.37 ≥12.9 ≥1027 ≥14 ≥1114 49 45 390 358 ≤100
50M 14.50 14.00 1.45 1.40 ≥13.0 ≥1033 ≥14 ≥1114 51 47 406 374 ≤100
35H 12.30 11.80 1.23 1.18 ≥10.9 ≥868 ≥17 ≥1353 36 33 287 263 ≤120
38H 12.60 12.30 1.26 1.23 ≥11.3 ≥899 ≥17 ≥1353 39 36 311 287 ≤120
40H 12.90 12.60 1.29 1.26 ≥11.6 ≥923 ≥17 ≥1353 41 38 327 302 ≤120
42H 13.30 12.90 1.33 1.29 ≥12.0 ≥955 ≥17 ≥1353 43 40 342 318 ≤120
45H 13.70 13.30 1.37 1.33 ≥12.3 ≥979 ≥17 ≥1353 46 43 366 342 ≤120
48H 14.10 13.70 1.41 1.37 ≥12.5 ≥995 ≥17 ≥1353 49 46 390 366 ≤120
35SH 12.30 11.80 1.23 1.18 ≥11.0 ≥876 ≥20 ≥1592 36 33 287 263 ≤150
38SH 12.60 12.30 1.26 1.23 ≥11.4 ≥907 ≥20 ≥1592 39 36 311 287 ≤150
40SH 12.90 12.60 1.29 1.26 ≥11.6 ≥939 ≥20 ≥1592 41 38 326 302 ≤150
42SH 13.30 12.90 1.33 1.29 ≥12.4 ≥987 ≥20 ≥1592 43 40 342 318 ≤150
45SH 13.70 13.20 1.37 1.32 ≥12.6 ≥1003 ≥20 ≥1592 46 42 366 334 ≤150
33UH 11.80 11.40 1.18 1.14 ≥10.7 ≥852 ≥25 ≥1989 34 31 271 247 ≤180
35UH 12.30 11.80 1.23 1.18 ≥10.8 ≥860 ≥25 ≥1989 36 33 287 263 ≤180
38UH 12.60 12.30 1.26 1.23 ≥11.3 ≥899 ≥25 ≥1989 39 36 311 287 ≤180
40UH 12.90 12.50 1.29 1.25 ≥11.3 ≥899 ≥25 ≥1989 41 38 326 302 ≤180
33EH 11.80 11.40 1.18 1.14 ≥10.3 ≥820 ≥30 ≥2388 34 31 271 247 ≤200
35EH 12.30 11.70 1.23 1.17 ≥10.5 ≥836 ≥30 ≥2388 36 33 287 263 ≤200
38EH 12.60 12.20 1.26 1.22 ≥11.3 ≥899 ≥30 ≥2388 39 35 311 287 ≤200

video

certification

   certificate sgs part3