Samarium Cobalt Magnet Grades

SmCo
Grade

Br (Gauss)Hc
(Oe)		Hci
(Oe)		(BH)max
(MGOe)		Reversible
Temperature Coefficients
Br%/°C		Reversible
Temperature Coefficients
Hcj%/°C		Continuous
Working Temp. Max °C		BH Curve

S-18

8,000 – 9,0007,800 – 8,80025,000 – 35,00016.0 – 20.0-0.05-0.04250

S-20

9,000 – 9,5008,500 – 9,30018,000 – 25,00019.0 – 21.0-0.05
-0.04250

S-22

9,500 – 10,0009,000 – 9,50015,000 – 23,00021.0 – 23.00-0.05-0.04250

S-18T

8,500 – 9,5008,000 – 9,00020,000 – 30,00016.0 – 20.0-0.01-0.04350

S-22T

9,500 – 10,0008,500 – 9,50020,000 – 30,00020.0 – 24.0-0.01-0.04350

S-22L

9,500 – 10,0006,000 – 8,0006,200 – 9,00020.0 – 24.0-0.03-0.04250

S-22H

9,500 – 10,0007,000 – 9,5008,000 – 15,00020.0 – 24.0-0.03-0.04250

S-22U

9,500 – 10,0009,000 – 10,00025,000 – 35,00020.0 – 24.0-0.03-0.04300

S-26L

10,000 – 10,8006,000 – 8,0006,200 – 9,00024.0 – 28.0-0.03-0.04250

S-26H

10,000 – 10,8007,000 – 10,5008,000 – 15,00024.0 – 28.0-0.03-0.04250

S-26U

10,000 – 10,8009,500 – 10,50025,000 – 35,00024.0 – 28.0-0.03-0.04300

S-28L

10,400 – 11,0006,000 – 8,0006,200 – 9,00026.0 – 30.0-0.03-0.04250

S-28H

10,400 – 11,0007,000 – 10,5008,000 – 15,00026.0 – 30.0-0.03-0.04250

S-28U

10,400 – 11,0009,500 – 10,50025,000 – 35,00026.0 – 30.0-0.03-0.04300

S-30L

10,800 – 11,2006,000 – 8,0006,200 – 9,00028.0 – 31.0-0.03-0.04250

S-30H

10,800 – 11,2007,000 – 10,5008,000 – 15,00028.0 – 31.0-0.03-0.04250

S-30U

10,800 – 11,20010,000 – 10,80025,000 – 35,00028.0 – 31.0-0.03-0.04300

S-32

11,000 – 11,6007,000 – 10,5008,000 – 15,00030.0 – 33.0-0.03-0.04250

S-33

11,300 – 12,1008,500 – 11,50010,000 – 22,00029.0 – 34.0-0.03-0.04250