Magnetic Properties of SmCo Magnets

Material	Grade	Remanence		Coercivity		Intrinsic Coercivity		Max. Energy Product
Material	Grade	Br (mT)	Br (kGs)	bHc (kA/m)	bHc (kOe)	iHc (kA/m)	iHc (kOe)	(BH)max (kJ/m³)	(BH)max (MGOe)
SmCo₅	S16	790–840	7.9–8.4	612–660	7.7–8.3	1830	23	118–135	15–17
	S18	840–890	8.4–8.9	644–692	8.1–8.7	1830	23	135–151	17–19
	S20	890–930	8.9–9.3	684–732	8.6–9.2	1830	23	150–167	19–21
	S22	920–960	9.2–9.6	710–756	8.9–9.5	1830	23	167–183	21–23
	S24	960–1000	9.6–10.0	740–788	9.3–9.9	1830	23	183–199	23–25
Sm₂Co₁₇	S220	930–970	9.3–9.7	676–740	8.5–9.3	1433	18	160–183	20–23
	S240	950–1020	9.5–10.2	692–764	8.7–9.6	1433	18	175–191	22–24
	S260	1020–1050	10.2–10.5	748–796	9.4–10.0	1433	18	191–207	24–26
	S280	1030–1080	10.3–10.8	756–812	9.5–10.2	1433	18	207–220	26–28
	S300	1080–1100	10.8–11.0	788–835	9.9–10.5	1433	18	220–240	28–30
	S320	1100–1130	11.0–11.3	812–860	10.2–10.8	1433	18	230–255	29–32

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