Material	Br mT	bHc KA/m	iHc KA/m	(BH) max KJ/m3	Density g/cm3	Tw max. C°
N35/100P	460	300	1050	35	4.8	130
N40/80P	480	320	850	40	4.7	130
N42/60P	520	310	650	42	5	120
N48/60P	540	350	650	48	5	120
N55/100PW	600	380	1050	55	6	130
N65/85PW	630	420	900	65	6	140
N72/70PW	780	440	750	72	6	130