The magnetic properties and phase stability of half-metal-type Co2Cr1-xFexGa alloys were investigated by differential scanning calorimetry (DSC), in a superconducting quantum interference device (SQUID) magnetometer and in a vibrating sample magnetometer (VSM), and by transmission electron microscopy (TEM). It was found that the L2(1)-type single-phase is obtainable for the entire concentration of x and that the value of the saturation magnetic moment M., at 4.2 K in the lower composition range of x is in agreement with the generalized Slater-Pauling line, while it is rather larger than the generalized Slater-Pauling line above x = 0.6. The Curie temperature T-c monotonically increases, whereas the transition temperature from the L2(1)- to B2-type phase T-1(B2/L21) is almost constant at 1082 +/- 13 K with increasing x. (c) 2005 Elsevier B.V. All rights reserved.