In this study, starting from the basic composition of Fe-P-C alloy, a series of different compositions including Fe-Ni-P-C, Fe-Co-P-C, Fe-Ni-Co-P-C have been cast into thin glassy ribbons. The substitution of iron for nickel and/or cobalt is always implemented in the range of 20 at%. Optimum casting parameters are determined and fluxing treatment of compositions have been conducted. Nine selected samples from synthesized ribbons (including three fluxed ribbons) were further investigated for their glass forming abilities, crystallization behaviors, thermal and magnetic properties.