Selected rare-earth (RE)-based δ-phase compounds of the composition RE 6Fe 13− x Al 1+ x (1 ≤ x ≤ 4) have been prepared and studied to ascertain their role in conveying coercivity to the so-called ferromagnetic bulk metallic glass (BMG) alloys (RE) 60Fe 30Al 10. It was found that δ-phase does not exist for RE = Sm or Gd. However, nearly single δ-phase Pr-based compounds of the composition Pr 6Fe 13− x Al 1+ x in a range of Al concentration 1.5 ≤ x ≤ 3.5 were successfully synthesized. The antiferromagnetic behavior of the Pr-based δ-phase compounds is clearly seen from temperature-dependent magnetization measurements and the Néel temperature shows a quasi-linear decrease from 320 K to 115 K as x in Pr 6Fe 13− x Al 1+ x is increased from 1 to 4. The observed Al-concentration dependence of the Pr 6Fe 13− x Al 1+ x Néel temperatures is expected to be reflected in the magnetic behavior of the BMG alloys of composition Pr 60Fe 30Al 10.