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Sm2Co17 Magnet | 2nd Generation of Rare Earth Magnet

Samarium Cobalt 2:17 series is the second generation of rare earth magnet. As an alternative to sintered neodymium magnet, Sm2Co17 can outperform NdFeB magnets at temperatures over 150 degree. The maximum energy product - (BH)max of the commercial Sm2Co17 can reach 33 MGOe and the value is up to 35 MGOe in the laboratory.

Chemical Composition of Sm2Co17

Sm2Co17 rare earth magnet is composed of samarium (Sm), cobalt (Co) and transition elements such as iron (Fe), copper (Cu) and zirconium (Zr). The main difference from the first generation rare earth magnet – SmCo5 magnet is that Sm2Co17 contains iron. Due to the existence of iron, Sm2Co17 exhibits stronger magnetic strength but is less corrosion resistant than SmCo5.

rare earth magnets SmCo magnets

Magnetic Datasheet of Sm2Co17 Magnet

Grade
Sm2Co17
Remanence (Br)Intrinsic Coercivity (Hcj)Coercivity (Hcb)Maximum Energy Product (BH)max
kGskOekOeMGOe
MaxMinRangeRangeMaxMin
YXG20L9.208.605-184.5-8.82218
YXG22L9.509.005-184.5-9.22420
YXG24L10.009.505-184.5-9.72622
YXG26L10.4010.005-184.5-102724
YXG28L10.8010.405-184.5-10.52826
YXG30L11.1010.805-184.5-10.63028
YXG32L11.4011.105-184.5-10.83130
YXG33L11.6011.405-184.5-11.03231
YXG34L11.8011.605-184.5-11.23332
YXG35L12.2011.705-184.5-11.23533
YXG209.208.6018-257.8-8.82218
YXG229.509.0018-258.2-9.22420
YXG2410.009.5018-258.6-9.72622
YXG2610.4010.0018-259.0-10.02724
YXG2811.1010.4018-259.5-10.52826
YXG3011.1010.8018-259.8-10.63028
YXG3211.6011.1018-2510.1-10.83130
YXG3311.6011.4018-2510.4-11.03231
YXG3411.8011.6018-2510.6-11.23332
YXG3512.2011.7018-2510.8-11.53533
YXG20H9.208.60>257.8-8.82218
YXG22H9.509.00>258.2-9.22420
YXG24H10.009.50>258.6-9.72622
YXG26H10.4010.00>259.0-10.02724
YXG28H10.8010.40>259.5-10.52826
YXG30H11.1010.80>259.8-10.63028
YXG32H11.4011.10>2510.1-10.83130
YXG33H11.6011.40>2510.4-11.03331
YXG34H11.8011.60>2510.6-11.23332
YXG35H12.2011.70>2510.8-11.53533

Sm2Co17 of Low Temp. Coefficient and High Temp. Resistance

Grade
Sm2Co17
BrHcjHcb(BH)maxMax. Working Temp.Temperature  Coefficient
kGskOekOeMGOeαBr (20℃-150℃)
MaxMinRangeRangeMaxMin%/℃
YXG20LT9.28.6>207.8-8.82218350±0.005
YXG22LT9.59.0>208.2-9.22420350-0.0100
YXG24G10.09.5>208.6-9.72622500-0.0350
YXG22G9.59.0>208.2-9.22424550-0.0350

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Jonah Jin

Jonah Jin
Managing Director

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