
Samarium-cobalt magnet is a kind of Rare-earth magnet. It is a kind of magnetic material made of samarium, cobalt and other metal rare earth materials through proportioning, melting into alloy, crushing, molding and sintering. It has high magnetic energy product and extremely low temperature coefficient. The maximum operating temperature can reach 350 ºC. Negative temperature is unlimited. When the operating temperature is above 180 ºC, its maximum magnetic energy product (BHmax) The coercivity, temperature stability, and chemical stability all exceed those of neodymium iron boron permanent magnet materials.
Samarium Cobalt(SmCo5) Magnet Grade
Material | Grade | Br | Hcb | Hcj | (BH)max | Tw | α(Br) | α(Br) | ||||
T | KGS | KA/m | kOe | KA/m | kOe | kJ/m³ | MGOe | C | %/.C | %/.C | ||
SmCo5 | 6 | 0.50-0.58 | 5.0-5.8 | 374-454 | 4.7-5.7 | ≥1194 | ≥15 | 48-64 | 6-8 | 250 | -0.050 | -0.30 |
8 | 0.58-0.65 | 5.8-6.5 | 430-509 | 5.4-6.4 | ≥1194 | ≥15 | 64-80 | 8-10 | 250 | -0.050 | -0.30 | |
10 | 0.64-0.72 | 6.4-7.2 | 478-565 | 6.0-7.1 | ≥1194 | ≥15 | 80-96 | 10-12 | 250 | -0.050 | -0.30 | |
12 | 0.70-0.76 | 7.0-7.6 | 517-589 | 6.5-7.4 | ≥1194 | ≥15 | 96-111 | 12-14 | 250 | -0.050 | -0.30 | |
14 | 0.75-0.82 | 7.5-8.2 | 557-637 | 7.0-8.0 | ≥1194 | ≥15 | 111-127 | 14-16 | 250 | -0.050 | -0.30 | |
16 | 0.77-0.86 | 7.7-8.6 | 573-668 | 7.2-8.4 | ≥1194 | ≥15 | 119-143 | 15-18 | 250 | -0.050 | -0.30 | |
18 | 0.82-0.90 | 8.2-9.0 | 621-700 | 7.8-8.8 | ≥1194 | ≥15 | 127-159 | 16-20 | 250 | -0.050 | -0.30 | |
20 | 0.86-0.92 | 8.6-9.2 | 653-716 | 8.2-9.0 | ≥1194 | ≥15 | 143-175 | 18-22 | 250 | -0.050 | -0.30 | |
22 | 0.90-0.95 | 9.0-9.5 | 677-740 | 8.5-9.3 | ≥1194 | ≥15 | 159-183 | 20-23 | 250 | -0.050 | -0.30 | |
24 | 0.95-1.00 | 9.5-10.0 | 716-780 | 9.0-9.8 | ≥1194 | ≥15 | 175-183 | 22-23 | 250 | -0.050 | -0.30 | |
16S | 0.79-0.84 | 7.9-8.4 | 612-660 | 7.7-8.3 | ≥1830 | ≥23 | 118-135 | 15-17 | 250 | -0.035 | -0.28 | |
18S | 0.84-0.90 | 8.4-9.0 | 644-692 | 8. 1-8.7 | ≥1830 | ≥23 | 135-151 | 17-19 | 250 | -0.040 | -0.28 | |
20S | 0.90-0.94 | 9.0-9.4 | 684-732 | 8.6-9.2 | ≥1830 | ≥23 | 151-167 | 19-21 | 250 | -0.045 | -0.28 | |
22S | 0.92-0.96 | 9.2-9.6 | 710-756 | 8.9-9.5 | ≥1830 | ≥23 | 167-183 | 21-23 | 250 | -0.045 | -0.28 | |
24S | 0.96-1.00 | 9.6-10.0 | 740-788 | 9.3-9.9 | ≥1830 | ≥23 | 183-199 | 23-25 | 250 | -0.045 | -0.28 |
Samarium Cobalt(Sm2Co17) Magnet Grade
Material | Grade | Br | Hcb | Hcj | (BH)max | Tw | α(Br) | α(Br) | ||||
Sm2Co17 | T | KGS | KA/m | kOe | KA/m | kOe | kJ/m³ | MGOe | C | %/.C | %/.C | |
14 | 0.75~0.82 | 7.5~8.2 | 557.2~636.8 | 7.0~8.0 | 1432.8~1990 | 18~25 | 111.4~127.4 | 14~16 | ||||
14H | 0.75~0.82 | 7.5~8.2 | 557.2~636.8 | 7.0~8.0 | >1990 | >25 | 111.4~127.4 | 14~16 | ||||
16 | 0.77~0.86 | 7.7~8.6 | 573.1~668.7 | 7.2~8.4 | 1432.8~1990 | 18~25 | 119.4~143.3 | 15~18 | ||||
16H | 0.77~0.86 | 7.7~8.6 | 573.1~668.7 | 7.2~8.4 | >1990 | >25 | 119.4~143.3 | 15~18 | ||||
18 | 0.82~0.9 | 8.2~9.0 | 620.8~700.5 | 7.8~8.8 | 1432.8~1990 | 18~25 | 135.3~159.2 | 17~20 | ||||
18H | 0.82~0.9 | 8.2~9.0 | 620.8~700.5 | 7.8~8.8 | >1990 | >25 | 135.3~159.2 | 17~20 | ||||
20L | 0.86~0.92 | 8.6~9.2 | 358.2~700.5 | 4.5~8.8 | 398~1432.8 | 5~18 | 151.2~175.2 | 19~22 | ||||
20 | 0.86~0.92 | 8.6~9.2 | 620.8~700.5 | 7.8~8.8 | 1432.8~1990 | 18~25 | 151.2~175.2 | 19~22 | ||||
20H | 0.86~0.92 | 8.6~9.2 | 620.8~700.5 | 7.8~8.8 | >1990 | >25 | 151.2~175.2 | 19~22 | ||||
22L | 0.9~0.95 | 9.0~9.5 | 358.2~732.4 | 4.5~9.2 | 398~1432.8 | 5~18 | 159.2~191.1 | 20~24 | ||||
22 | 0.9~0.95 | 9.0~9.5 | 652.7~732.4 | 8.2~9.2 | 1432.8~1990 | 18~25 | 159.2~191.1 | 20~24 | ||||
22H | 0.9~0.95 | 9.0~9.5 | 652.7~732.4 | 8.2~9.2 | >1990 | >25 | 159.2~191.1 | 20~24 | ||||
24L | 0.95~1 | 9.5~10 | 358.2~772.2 | 4.5~9.7 | 398~1432.8 | 5~18 | 175.1~207 | 22~26 | ||||
24 | 0.95~1 | 9.5~10 | 684.5~727.2 | 8.6~9.7 | 1432.8~1990 | 18~25 | 175.1~207 | 22~26 | ||||
24H | 0.95~1 | 9.5~10 | 684.5~727.2 | 8.6~9.7 | >1990 | >25 | 175.1~207 | 22~26 | ||||
26L | 1~1.04 | 10~10.4 | 358.2~796 | 4.5~10 | 398~1432.8 | 5~18 | 191~215 | 24~27 | ||||
26 | 1~1.04 | 10~10.4 | 716.4~796 | 9~10 | 1432.8~1990 | 18~25 | 191~215 | 24~27 | ||||
26H | 1~1.04 | 10~10.4 | 716.4~796 | 9~10 | >1990 | >25 | 191~215 | 24~27 | ||||
28L | 1.04~1.08 | 10.4~10.8 | 358.2~835.8 | 4.5~10.5 | 398~1432.8 | 5~18 | 206.9~222.9 | 26~28 | ||||
28 | 1.04~1.08 | 10.4~10.8 | 756.2~835.8 | 9.5~10.5 | 1432.8~1990 | 18~25 | 206.9~222.9 | 26~28 | ||||
28H | 1.04~1.08 | 10.4~10.8 | 756.2~835.8 | 9.5~10.5 | >1990 | >25 | 206.9~222.9 | 26~28 | ||||
30L | 1.08~1.11 | 10.8~11.1 | 358.2~843.8 | 4.5~10.6 | 398~1432.8 | 5~18 | 222.8~238.8 | 28~30 | ||||
30 | 1.08~1.11 | 10.8~11.1 | 780~843.8 | 9.8~10.6 | 1432.8~1990 | 18~25 | 222.8~238.8 | 28~30 | ||||
30H | 1.08~1.11 | 10.8~11.1 | 780~843.8 | 9.8~10.6 | >1990 | >25 | 222.8~238.8 | 28~30 | ||||
32L | 1.11~1.14 | 11.1~11.4 | 358.2~859.7 | 4,5~10.8 | 398~1432.8 | 5~18 | 234.8~246.8 | 29.5~31 | ||||
32 | 1.11~1.14 | 11.1~11.4 | 803.9~859.7 | 10.1~10.8 | 1432.8~1990 | 18~25 | 234.8~246.8 | 29.5~31 | ||||
32H | 1.11~1.14 | 11.1~11.4 | 803.9~859.7 | 10.1~10.8 | >1990 | >25 | 234.8~246.8 | 29.5~31 | ||||
33L | 1.14~1.16 | 11.4~11.6 | 358.2~875.6 | 4.5~11 | 398~1432.8 | 5~18 | 246.7~254.8 | 31~32 | ||||
33 | 1.14~1.16 | 11.4~11.6 | 827.8~875.6 | 10.4~11 | 1432.8~1990 | 18~25 | 246.7~254.8 | 31~32 | ||||
33H | 1.14~1.16 | 11.4~11.6 | 827.8~875.6 | 10.4~11 | >1990 | >25 | 246.7~262.7 | 31~33 | ||||
34L | 1.16~1.18 | 11.6~11.8 | 358.2~891.6 | 4.5~11.2 | 398~1432.8 | 5~18 | 254.7~262.7 | 32~33 | ||||
34 | 1.16~1.18 | 11.6~11.8 | 843.7~891.6 | 10.6~11.2 | 1432.8~1990 | 18~25 | 254.7~262.7 | 32~33 | ||||
34H | 1.16~1.18 | 11.6~11.8 | 843.7~891.6 | 10.6~11.2 | >1990 | >25 | 254.7~262.7 | 32~33 | ||||
35L | 1.17~1.22 | 11.7~12.2 | 358.2~891.6 | 4.5~11.2 | 398~1432.8 | 5~18 | 262.6~278.6 | 33~35 | ||||
35 | 1.17~1.22 | 11.7~12.2 | 859.6~915.4 | 10.8~11.5 | 1432.8~1990 | 18~25 | 262.6~278.6 | 33~35 | ||||
35H | 1.17~1.22 | 11.7~12.2 | 859.6~915.4 | 10.8~11.5 | >1990 | >25 | 262.6~278.6 | 33~35 | ||||
20LT | 0.86~0.92 | 8.6~9.2 | 620.8~700.5 | 7.8~8.8 | >1592 | >20 | 143.2~175.2 | 18~22 | ||||
22LT | 0.9~0.95 | 9.0~9.5 | 652.7~732.4 | 8.2~9.2 | >1592 | >20 | 159.2~191.1 | 20~24 |




Ningbo Mashi Magnet Technology Co., Ltd. is a professional magnet & assemblies manufacturing company in China. We can manufacturing various shapes and sizes according to customer requirements, such as Round, Ring, Cylinder, Ball, Block, special-shaped, etc.and manufacturing various of Magnetic Assemblies like: Pot, Hook, Bar, Grate, etc.
Our Products are widely used in Automobiles, electric vehicle, Speaker, Motor, magnetic separator, Wind Turbine Generator, Medical Equipment, Elevators, Electronic Products, Packaging, and other industrial fields. Our products sell well in many countries and regions such as China, Europe, America, Southeast Asia and so on.
You can customize any magnet here, please contact us now.