Samarium Cobalt Magnet Grades
SmCo | 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 – 9,000 | 7,800 – 8,800 | 25,000 – 35,000 | 16.0 – 20.0 | -0.05 | -0.04 | 250 | |
S-20 | 9,000 – 9,500 | 8,500 – 9,300 | 18,000 – 25,000 | 19.0 – 21.0 | -0.05 | -0.04 | 250 | |
S-22 | 9,500 – 10,000 | 9,000 – 9,500 | 15,000 – 23,000 | 21.0 – 23.00 | -0.05 | -0.04 | 250 | |
S-18T | 8,500 – 9,500 | 8,000 – 9,000 | 20,000 – 30,000 | 16.0 – 20.0 | -0.01 | -0.04 | 350 | |
S-22T | 9,500 – 10,000 | 8,500 – 9,500 | 20,000 – 30,000 | 20.0 – 24.0 | -0.01 | -0.04 | 350 | |
S-22L | 9,500 – 10,000 | 6,000 – 8,000 | 6,200 – 9,000 | 20.0 – 24.0 | -0.03 | -0.04 | 250 | |
S-22H | 9,500 – 10,000 | 7,000 – 9,500 | 8,000 – 15,000 | 20.0 – 24.0 | -0.03 | -0.04 | 250 | |
S-22U | 9,500 – 10,000 | 9,000 – 10,000 | 25,000 – 35,000 | 20.0 – 24.0 | -0.03 | -0.04 | 300 | |
S-26L | 10,000 – 10,800 | 6,000 – 8,000 | 6,200 – 9,000 | 24.0 – 28.0 | -0.03 | -0.04 | 250 | |
S-26H | 10,000 – 10,800 | 7,000 – 10,500 | 8,000 – 15,000 | 24.0 – 28.0 | -0.03 | -0.04 | 250 | |
S-26U | 10,000 – 10,800 | 9,500 – 10,500 | 25,000 – 35,000 | 24.0 – 28.0 | -0.03 | -0.04 | 300 | |
S-28L | 10,400 – 11,000 | 6,000 – 8,000 | 6,200 – 9,000 | 26.0 – 30.0 | -0.03 | -0.04 | 250 | |
S-28H | 10,400 – 11,000 | 7,000 – 10,500 | 8,000 – 15,000 | 26.0 – 30.0 | -0.03 | -0.04 | 250 | |
S-28U | 10,400 – 11,000 | 9,500 – 10,500 | 25,000 – 35,000 | 26.0 – 30.0 | -0.03 | -0.04 | 300 | |
S-30L | 10,800 – 11,200 | 6,000 – 8,000 | 6,200 – 9,000 | 28.0 – 31.0 | -0.03 | -0.04 | 250 | |
S-30H | 10,800 – 11,200 | 7,000 – 10,500 | 8,000 – 15,000 | 28.0 – 31.0 | -0.03 | -0.04 | 250 | |
S-30U | 10,800 – 11,200 | 10,000 – 10,800 | 25,000 – 35,000 | 28.0 – 31.0 | -0.03 | -0.04 | 300 | |
S-32 | 11,000 – 11,600 | 7,000 – 10,500 | 8,000 – 15,000 | 30.0 – 33.0 | -0.03 | -0.04 | 250 | |
S-33 | 11,300 – 12,100 | 8,500 – 11,500 | 10,000 – 22,000 | 29.0 – 34.0 | -0.03 | -0.04 | 250 |