... can be as high as 550 deg. Product Name: U Shaped Magnet; U Shaped; U Shaped Alnicowidely used for teaching.Properties: LN9,LN10,LNG12,LNG13,LNG37 ... ) Alnico2,Alnico3,Alnico5,Alnico5DG,Alnico5-7,Alnico6,Alnico8HC,Alnico8, Alnico9 (U.S.A Standard).