Magnetic Component Engineering
SAE AS9100C AND ISO 9001:2008 CERTIFIED
Samarium Cobalt (Sintered) / S1865
Magnetic Properties Nom. Min.
Br (Gauss) 8,500 8,000
Hc (Oersted) 8,400 7,800
Hk (Oersted) 12,000 9,000
Hci (Oersted) 15,000 13,000
BHmax (MGOe) 18.0 16.0
Temp Coeff of Br (%/C) -0.04 N/A
Recoil Permeability (rec) 1.1 N/A
Tc, Curie Temperature (C) 720 N/A
Maximum Operating Temperature (C) 250 N/A
Physical Properties  
Density (Ibs/in3) 0.30
Coeff of Linear Expan. ⊥ to < M > (10-7/C approx) 66.0
Coeff of Linear Expan. // to < M > (10-7/C approx) 66.0
Compressive Strength (psi x 103) 14.5
Young's Modulus (psi x 106) 23.2
Vicker's Hardness (HV) 600
Tensile Strength (psi x 106) N/A
Flexural Strength (psi x 106) N/A
Common Industry Name SmCo18, Sam18
Electrical Resistivity (μΩ.cm) 50
Typical Appearance Silver
Type SmCo5