Magnetic Component Engineering
SAE AS9100C AND ISO 9001:2008 CERTIFIED
Neodymium Iron Boron (Sintered) / N4166
Magnetic Properties Nom. Min.
Br (Gauss) 12,900 12,500
Hc (Oersted) 12,300 9,500
Hk (Oersted) 8,000 7,000
Hci (Oersted) 19,000 16,000
BHmax (MGOe) 41.0 39.0
Temp Coeff of Br (%/C) -0.11 N/A
Recoil Permeability (rec) 1.1 N/A
Tc, Curie Temperature (C) 310 N/A
Maximum Operating Temperature (C) 110 N/A
Physical Properties  
Density (Ibs/in3) 0.27
Coeff of Linear Expan. ⊥ to < M > (10-7/C approx) -5.0
Coeff of Linear Expan. // to < M > (10-7/C approx) 65.0
Compressive Strength (psi x 103) 160.0
Young's Modulus (psi x 106) 23.0
Vicker's Hardness (HV) 600
Tensile Strength (psi x 106) N/A
Flexural Strength (psi x 106) N/A
Common Industry Name N41
Electrical Resistivity (μΩ.cm) 144
Typical Appearance Gray
Type