Alnico Ⅱ : 10% Aluminium, 19% Nickel, 13% Cobalt and 3% Copper, with 0% Titanium.

Alnico Ⅲ : 7–12% Al, 14–25% Ni, 5–38% Co, 3-4% Cu with the balance being Fe.

Alnico Ⅴ : Co 24%, Ni 14%, Al 8%, Cu 3%, Fe with the balance being, Br 12500~13000 G.Hc 0~700Oe, (BH) max 5~6×106GㆍOe.