Sintered samarium-cobalt (SmCo) magnets combine strong magnetic performance with exceptional temperature and chemical stability. Their properties change very little with temperature, making them the material of choice for extreme and mission-critical environments.
With working temperatures up to 550 °C and excellent intrinsic corrosion resistance, SmCo magnets usually require no coating — simplifying assembly and eliminating a failure mode in harsh media.
Typical applications include aerospace actuators, high-temperature sensors, pump couplings, downhole tools and defense systems.
| Grade | Br (T) | Br (kGs) | Hcj (kA/m) | Hcj (kOe) | Hcb (kA/m) | Hcb (kOe) | (BH)max (kJ/m³) | (BH)max (MGOe) | Max temp (°C) |
|---|---|---|---|---|---|---|---|---|---|
| 24M | 0.95–1.01 | 9.5–10.1 | ≥955 | ≥12 | 688–766 | 8.6–9.6 | 175–191 | 22–24 | 250 |
| 26M | 1.00–1.05 | 10.0–10.5 | ≥955 | ≥12 | 724–796 | 9.1–10.0 | 191–207 | 24–26 | 250 |
| 28M | 1.04–1.09 | 10.4–10.9 | ≥955 | ≥12 | 753–827 | 9.5–10.4 | 207–223 | 26–28 | 250 |
| 30M | 1.08–1.12 | 10.8–11.2 | ≥955 | ≥12 | 782–849 | 9.8–10.7 | 223–239 | 28–30 | 250 |
| 32M | 1.11–1.17 | 11.1–11.7 | ≥955 | ≥12 | 803–887 | 10.1–11.1 | 239–255 | 30–32 | 250 |
| 34M | 1.16–1.20 | 11.6–12.0 | ≥955 | ≥12 | 840–910 | 10.5–11.4 | 255–271 | 32–34 | 250 |
| 35M | 1.18–1.21 | 11.8–12.1 | ≥955 | ≥12 | 854–918 | 10.7–11.5 | 263–279 | 33–35 | 250 |
| 24 | 0.95–1.01 | 9.5–10.1 | ≥1433 | ≥18 | 700–766 | 8.8–9.6 | 175–191 | 22–24 | 300 |
| 26 | 1.00–1.05 | 10.0–10.5 | ≥1433 | ≥18 | 737–796 | 9.3–10.0 | 191–207 | 24–26 | 300 |
| 28 | 1.04–1.09 | 10.4–10.9 | ≥1433 | ≥18 | 767–827 | 9.6–10.4 | 207–223 | 26–28 | 300 |
| 30 | 1.08–1.12 | 10.8–11.2 | ≥1433 | ≥18 | 796–849 | 10.0–10.7 | 223–239 | 28–30 | 300 |
| 32 | 1.11–1.145 | 11.1–11.45 | ≥1433 | ≥18 | 818–868 | 10.3–10.9 | 239–255 | 30–32 | 300 |
| 33 | 1.13–1.16 | 11.3–11.6 | ≥1433 | ≥18 | 833–884 | 10.5–11.1 | 239–255 | 30–32 | 300 |
| 34 | 1.16–1.20 | 11.6–12.0 | ≥1433 | ≥18 | 855–910 | 10.7–11.4 | 255–271 | 32–34 | 300 |
| 35 | 1.18–1.21 | 11.8–12.1 | ≥1433 | ≥18 | 870–918 | 10.9–11.5 | 263–279 | 33–35 | 300 |
| 24H | 0.95–1.01 | 9.5–10.1 | ≥1990 | ≥25 | 700–766 | 8.8–9.6 | 175–191 | 22–24 | 350 |
| 26H | 1.00–1.05 | 10.0–10.5 | ≥1990 | ≥25 | 737–796 | 9.3–10.0 | 191–207 | 24–26 | 350 |
| 28H | 1.04–1.09 | 10.4–10.9 | ≥1990 | ≥25 | 767–827 | 9.6–10.4 | 207–223 | 26–28 | 350 |
| 30H | 1.08–1.12 | 10.8–11.2 | ≥1990 | ≥25 | 796–849 | 10.0–10.7 | 223–239 | 28–30 | 350 |
| 32H | 1.11–1.145 | 11.1–11.45 | ≥1990 | ≥25 | 818–868 | 10.3–10.9 | 239–255 | 30–32 | 350 |
| 33HA | 1.13–1.15 | 11.3–11.5 | ≥1990 | ≥25 | 833–884 | 10.5–11.1 | 239–255 | 30–32 | 350 |
| 33HB | 1.14–1.16 | 11.4–11.6 | ≥1990 | ≥25 | 833–884 | 10.5–11.1 | 247–263 | 31–33 | 350 |
| 34H | 1.16–1.20 | 11.6–12.0 | ≥1990 | ≥25 | 855–910 | 10.7–11.4 | 255–271 | 32–34 | 350 |
| 35H | 1.18–1.21 | 11.8–12.1 | ≥1990 | ≥25 | 870–918 | 10.9–11.5 | 263–279 | 33–35 | 350 |
| 18-TC | 0.85–0.91 | 8.5–9.1 | ≥1433 | ≥18 | 597–709 | 7.5–8.9 | 127–143 | 16–18 | 550 |
| 22-TC | 0.91–0.96 | 9.1–9.6 | ≥1433 | ≥18 | 685–732 | 8.6–9.2 | 151–175 | 19–22 | 350 |
| 31-T350 | 1.08–1.13 | 10.8–11.3 | ≥1990 | ≥25 | 796–876 | 10.0–11.0 | 223–247 | 28–31 | 350 |
| 25-T500 | 0.95–1.03 | 9.5–10.3 | ≥1990 | ≥25 | 725–764 | 9.1–9.6 | 175–199 | 22–25 | 500 |
| 26-T550 | 0.93–1.02 | 9.3–10.2 | ≥1990 | ≥25 | 677–796 | 8.5–10.0 | 183–207 | 23–26 | 550 |
Values are typical at 20 °C. Full per-grade datasheets and demagnetization curves are available on request.
The strongest permanent magnet material available today — the core choice for high-end manufacturing and precision instruments. Grades N35 to 45TH.
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Injection- and compression-molded into complex net shapes with high dimensional precision — ideal for automated assembly.
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Abundant raw materials and low production cost deliver unmatched value for consumer and industrial applications.
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