Samarium Cobalt Magnet Grades
Samarium Cobalt magnets are the second strongest rare earth magnet compared to Neodymium magnet material. Samarium Cobalt magnets, also known as SmCo, have better temperature stability and are extremely resistant to demagnetization. However, they are brittle, and prone to cracking and chipping.
Samarium Cobalt magnets are mainly used in the high-end applications which require high operating temperature between 250° and 350°C, such as aerospace and medical applications.
If you have questions, please contact us. We are always happy to assist you!
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 |