The present subvolume IV/19B5 forms the first supplement of IV/19B1 through IV/19B4 and contains evaluated data for binary alloy systems from Ag-B to W-Zr appearing in alphabetic order of the elements in the chemical formula. The volume is accompanied by a CD, which allows computer calculation of a range of solution properties for selected temperature and phase composition ranges for the systems presented in that particular volume. Graphical representations, including the calculated phase diagram for each system, are also possible. Information on more comprehensive software, allowing complex equilibrium calculations involving both pure substances and solution phases of different types (e.g. slags, salt systems, aqueous solutions, etc.), can be obtained from SGTE members. A list of the SGTE membership is presented in the cover pages of this volume.