SmCo Magnet
2019-12-05
Product description
In the high temperature environment, the performance of the temperature stability and magnetic energy product of samarium cobalt magnets is far superior to that of neodymium iron boron magnets. Its operating environment in 250 ℃ ~ 350 ℃ still has excellent magnetic properties (BHmax can reach 29-32MGOe) And high corrosion resistance, so there is no need to do surface coating like NdFeB magnets to maintain its magnetic energy.
Features
1. Compared with neodymium-iron-boron, samarium-cobalt magnets have excellent resistance to demagnetization, making them still have excellent magnetic performance in high-temperature operating environments.
2. SmCo permanent magnets can be divided into SmCo5 and Sm2Co17. Although the latter is superior to the former in terms of temperature resistance and magnetic properties, it is not easy to apply Sm2Co17 to products with special shapes in terms of mechanical processing. .
3. Widely used in special-purpose precision instruments such as aviation and military parts and medical surgical instruments such as MRI, traveling wave tube or high-end precision electronic instruments such as gyroscopes.
| Grade | Br | bHc | iHc | BHMax | Max Working Temp. | Curie Temp. | Coeff. of Br |
|---|---|---|---|---|---|---|---|
| SM16 (1:5) | 8.10~8.50 KG 810~850 mT | 7.80~8.30 KOe 620~660 KA/m | 15.0~23.0 KOe 1194~1830 KA/m | 14.0~16.0 MGOe 110~127 KJ/m3 | 250 ˚C | 750 °C | -0.050 %/°C |
| SM18 (1:5) | 8.50~9.00 KG 850~900 mT | 8.30~8.80 KOe 660~700 KA/m | 15.0~23.0 KOe 1194~1830 KA/m | 16.0~18.0 MGOe 127~143 KJ/m3 | 250 ˚C | 750 °C | -0.050 %/°C |
| SM20 (1:5) | 9.00~9.40 KG 900~940 mT | 8.50~9.10 KOe 680~725 KA/m | 15.0~23.0 KOe 1194~1830 KA/m | 19.0~21.0 MGOe 150~167 KJ/m3 | 250 ˚C | 750 °C | -0.050 %/°C |
| SM22 (1:5) | 9.20~9.60 KG 920~960 mT | 8.90~9.40 KOe 710~750 KA/m | 15.0~23.0 KOe 1194~1830 KA/m | 20.0~22.0 MGOe 160~175 KJ/m3 | 250 ˚C | 750 °C | -0.050 %/°C |
| SM24 (1:5) | 9.60~10.00 KG 960~1000 mT | 9.20~9.70 KOe 730~770 KA/m | 15.0~23.0 KOe 1194~1830 KA/m | 22.0~24.0 MGOe 175~190 KJ/m3 | 250 ˚C | 750 °C | -0.050 %/°C |
| SM22 (2:17) | 9.30~9.70 KG 930~970 mT | 8.50~9.30 KOe 676~740 KA/m | ≧18 KOe ≧1433 KA/m | 20.0~23.0 MGOe 160~183 KJ/m3 | 300 ˚C | 800 °C | -0.020 %/°C |
| SM24 (2:17) | 9.50~10.20 KG 950~1020 mT | 8.70~9.40 KOe 700~750 KA/m | ≧18 KOe ≧1433 KA/m | 22.0~24.0 MGOe 175~191 KJ/m3 | 300 ˚C | 800 °C | -0.025 %/°C |
| SM24H (2:17) | 9.50~10.20 KG 950~1020 mT | 8.70~9.40 KOe 700~750 KA/m | ≧25 KOe ≧1990 KA/m | 22.0~24.0 MGOe 175~191 KJ/m3 | 350 ˚C | 800 °C | -0.025 %/°C |
| SM24L (2:17) | 9.50~10.20 KG 950~1020 mT | 7.00~9.00 KOe 557~716 KA/m | 8.0~12.0 KOe 636~955 KA/m | 22.0~24.0 MGOe 175~191 KJ/m3 | 250 ˚C | 800 °C | -0.025 %/°C |
| SM26 (2:17) | 10.20~10.50 KG 1020~1050 mT | 9.40~9.80 KOe 750~780 KA/m | ≧18 KOe ≧1433 KA/m | 24.0~26.0 MGOe 191~207 KJ/m3 | 300 ˚C | 800 °C | -0.030 %/°C |
| SM26H (2:17 | 10.20~10.50 KG 1020~1050 mT | 9.40~9.80 KOe 750~780 KA/m | ≧25 KOe ≧1990 KA/m | 24.0~26.0 MGOe 191~207 KJ/m3 | 350 ˚C | 800 °C | -0.030 %/°C |
| SM26M (2:17) | 10.20~10.50 KG 1020~1050 mT | 9.00~9.80 KOe 716~780 KA/m | 12.0~16.0 KOe 955~1273 KA/m | 24.0~26.0 MGOe 191~207 KJ/m3 | 300 ˚C | 800 °C | -0.035 %/°C |
| SM26L (2:17) | 10.20~10.50 KG 1020~1050 mT | 7.00~9.40 KOe 557~748 KA/m | 8.0~12.0 KOe 636~955 KA/m | 24.0~26.0 MGOe 191~207 KJ/m3 | 250 ˚C | 800 °C | -0.035 %/°C |
| SM28 (2:17) | 10.30~10.80 KG 1030~1080 mT | 9.50~10.00 KOe 756~796 KA/m | ≧18 KOe ≧1433 KA/m | 26.0~28.0 MGOe 207~220 KJ/m3 | 300 ˚C | 800 °C | -0.035 %/°C |
| SM28H (2:17) | 10.30~10.80 KG 1030~1080 mT | 9.50~10.00 KOe 756~796 KA/m | ≧25 KOe ≧1990 KA/m | 26.0~28.0 MGOe 207~220 KJ/m3 | 350 ˚C | 800 °C | -0.035 %/°C |
| SM28M (2:17) | 10.30~10.80 KG 1030~1080 mT | 9.00~10.0 KOe 716~796 KA/m | 12.0~16.0 KOe 955~1273 KA/m | 26.0~28.0 MGOe 207~220 KJ/m3 | 300 ˚C | 800 °C | -0.035 %/°C |
| SM28L (2:17) | 10.30~10.80 KG 1030~1080 mT | 7.00~9.60 KOe 557~765 KA/m | 8.0~12.0 KOe 636~955 KA/m | 26.0~28.0 MGOe 207~220 KJ/m3 | 250 ˚C | 800 °C | -0.035 %/°C |
| SM30 (2:17) | 10.80~11.00 KG 1080~1100 mT | 9.90~10.50 KOe 788~835 KA/m | ≧18 KOe ≧1433 KA/m | 28.0~30.0 MGOe 220~240 KJ/m3 | 300 ˚C | 800 °C | -0.035 %/°C |
| SM30H (2:17) | 10.80~11.00 KG 1080~1100 mT | 9.90~10.50 KOe 788~835 KA/m | ≧25 KOe ≧1990 KA/m | 28.0~30.0 MGOe 220~240 KJ/m3 | 350 ˚C | 800 °C | -0.035 %/°C |
| SM30M (2:17) | 10.80~11.00 KG 1080~1100 mT | 9.00~10.50 KOe 716~835 KA/m | 12.0~16.0 KOe 955~1273 KA/m | 28.0~30.0 MGOe 220~240 KJ/m3 | 300 ˚C | 800 °C | -0.035 %/°C |
| SM30L (2:17) | 10.80~11.50 KG 1080~1150 mT | 7.00~10.00 KOe 557~795 KA/m | 8.0~12.0 KOe 636~955 KA/m | 28.0~30.0 MGOe 220~240 KJ/m3 | 250 ˚C | 800 °C | -0.035 %/°C |
| SM32 (2:17) | 11.00~11.30 KG 1100~1130 mT | 10.20~10.60 KOe 811~845 KA/m | ≧15.0 KOe ≧1194 KA/m | 29.0~32.0 MGOe 230~255 KJ/m3 | 300 ˚C | 800 °C | -0.035 %/°C |
| SM32M (2:17 | 11.00~11.30 KG 1100~1130 mT | 9.00~10.60 KOe 716~845 KA/m | 12.0~16.0 KOe 955~1273 KA/m | 29.0~32.0 MGOe 230~255 KJ/m3 | 300 ˚C | 800 °C | -0.035 %/°C |
| SM32L (2:17) | 11.00~11.50 KG 1100~1150 mT | 7.00~10.20 KOe 557~810 KA/m | 8.0~12.0 KOe 636~955 KA/m | 29.0~32.0 MGOe 230~255 KJ/m3 | 250 ˚C | 800 °C | -0.035 %/°C |
Previous: Bonded neodymium iron boron (MQ)
Next:Cast Alnico