(For pfm: in % by weight)
-Precious:
Au: 88 Pt: 9.5 Ag: 0.5 In: 1.5 Ir: <1 Fe: <1
-Semi precious:
Au: 40 Pd: 39.4 Ag: 10 Sn: 0.3 In: 8.8 Ga: 1.4 Sn: <1
-Non precious
Co: 59.5 Cr: 31.5 Mo: 5 Si: 2 Mn: <1 Fe: <1 C: <1
(For full metal crowns: in % by weight)
-Precious:
Au: 58 Pd: 3.25 Ag: 27 Cu: 10.49 Zn: 1 Ir: 0.25
-Semi precious:
Au: 40 Pd: 4.95 Ag: 45.7 Cu: 8.3 Zn: 1
-Non precious:
Co: 59.5 Cr: 31.5 Mo: 5 Si: 2 Mn: <1 Fe: <1 C: <1