(4) BIG Large Strong Dexter Neodymium Magnets N38 70mmx20mmx6mm NdFeB Lot black, US $20.00 – Picture 0

(4) BIG Large Strong Dexter Neodymium Magnets N38 70mmx20mmx6mm NdFeB Lot black, US $20.00 – Picture 1

(4) BIG Large Strong Dexter Neodymium Magnets N38 70mmx20mmx6mm NdFeB Lot black, US $20.00 – Picture 2

(4) BIG Large Strong Dexter Neodymium Magnets N38 70mmx20mmx6mm NdFeB Lot black, US $20.00 – Picture 3

(4) Big Large Strong Dexter Neodymium Magnets N38 70mmx20mmx6mm Ndfeb Lot Black

US $20.00

Twin Lakes, Wisconsin, United States
Jan 29th

Open on mobile:
QR code

These sell for over $12 each. Found here well below cost!!!!!!!! THESE ARE high coercivity grade! THIS LISTING IS FOR 4 MAGNETS. LOT OF(4) BIG Large Strong Neodymium Magnets N38 70mm x 20mm x 6mm NdFeB Rare Earth. Black epoxy finish. . True H-Class High Temp Black epoxy finish. .. About Neodymium Iron Boron Dexter uses only licensed neodymium and licensed magnet materials for all applications. Sintered neodymium-iron-boron (Nd-Fe-B) magnets are licensed rare earth magnets which are the most powerful commercialized permanent magnets available today, with maximum energy product ranging from 26 MGOe to 52 MGOe. Neodymium Iron Boron is the third generation of permanent magnet developed in the 1980s. It has a combination of very high remanence and coercivity and comes with a wide range of grades, sizes and shapes. With its excellent magnetic characteristics Nd-Fe-B offers flexibility for new designs or as a replacement for traditional magnet materials such as ceramic, Alnico and Sm-Co for achieving higher efficiency and more compact devices. A powder metallurgy process is used in producing sintered Neodymium magnets. Although sintered Neodymium is mechanically stronger than Samarium Cobalt magnets and less brittle than other magnets, it should not be used as a structural component. Selection of Nd-Fe-B is limited by temperature due to its irreversible loss and moderately high reversible temperature coefficient of Br and Hci. The maximum application temperature is 200 °C for high coercivity grades. Nd-Fe-B magnets are more prone to oxidation than any other magnet alloys. If Nd-Fe-B magnet is to be exposed to humidity, chemically aggressive media such as acids, alkaline solutions salts and harmful gases, coating is recommended. It is not recommended in a hydrogen atmosphere. Typical Physical Properties *Coefficient of Thermal Expansion - Perpendicular to magnetization orientation -1.0 - -3.0 x 10-6 °C-1 *Coefficient of Thermal Expansion - Parallel to magnetization orientation +5.0 - +8.0 x 10-6 °C-1 Electrical Resistivity 120 - 160 µ?·cm Density 7.4 - 7.8 g·cm-3 Vicker's Hardness 550 - 650 HV Young's Modulus 150 - 170 kN·mm-2 Bending Strength 0.18 - 0.29 kN·mm-2 Compressive Strength 0.8 - 1.0 kN·mm-2 *Due to magnetostriction, all magnetic materials expand/contract at different rates, depending on magnetic orientation. Grade (click to view demagnetization curve) Max Energy Product Residual Induction Min Intrinsic Coercivity Coercivity Max Operating Temp Curie Temp Coefficient Induction 20-150 °C Coefficient Coercivity 20-150 °C BHmax Br Hci Hc Tmax Tc ? ? MGOe kG kOe kOe °C °C % / °C % / °C N3812 38 12.4 12 10.9 80 310 -0.12 -0.63

Condition:	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...	Brand	Dexter
Applications	wind turbine,science projects, holding,Motor
Model	N52 neodymium magnets block rectangle