FeAl-B intermetallics with different amounts of Boron (250, 500, 750 and 1000 ppm) produced using vacuum arc melting process. The hardness, grin size and wear behavior of specimens wear investigated. The results show that with increasing of Boron up to 1000ppm. The grin size of the intermetallic decreased, grin size distribution improved and the hardness of FeAl-B alloys decreased with increase the amounts of Boron. The wear behavior of the intermetallics investigated using pin-on-disk method. Steel 52100 choosed as the abrasive disc. The wear experiments were down under different loads including 1, 2 and 3 kg. The results showed that, with increasing the amount of Boron in the intermetallics, the wear resistance increased. Key Words Intermetallics, FeAl-B, Boron, Hardness, Grin size, Wear