  We present a chemical abundance analysis of seven A-type stars with no
detailed chemical abundance measurements in the literature. High-resolution
spectra of the targets HD 2924, HD 4321, HD 26553, HD 125658, HD 137928, HD
154713, and HD 159834 were obtained using the Coude Echelle Spectrograph at the
TUBITAK National Observatory. We determined the atmospheric abundances of the
samples and measured the elemental abundances of C, N, O, Na, Mg, Al, Si, S, K,
Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Sr, Y, Zr, Ba, La, Ce, Nd, Sm, Eu,
and Gd. The masses of the stars were estimated based on their evolutionary
tracks, and their ages were calculated using isochrones. We also calculated the
radii of the stars. The abundance patterns of HD 4321, HD 125658, and HD 154713
were found to be in agreement with those of classical Am stars, with
underabundant Ca and Sc, overabundant heavier elements, and moderate
overabundance of iron-peak elements. We found that HD 137928 and HD 159834 have
similar abundance characteristics to marginal Am-type stars. The elemental
distributions of HD 2924 and HD 26553 are consistent with the pattern of normal
A-type stars. The iron, nickel, and zinc abundances of HD 125658 and HD 137928
are significantly higher than other Am stars. These values suggest that they
are among the most metal-rich Am stars
