Foam synthesis, from several blends of pure iron, commercial graphite and gray iron powders plus the foaming agent (MgCO3), were carried out. These powders, in determined proportions and commercial graphite with up to 2,5Wt%, were blended in a small tumbler-type ball mill for 11⁄2 hours. Then, they were compacted by means of a 20 mm diameter die, to obtain 30 mm. to 35 mm. height samples having an average density near to 85% the iron's density. It was done by applying pressures between 900 MPa and 1000 MPa. These compacts were sintered at 1300oC during 17 minutes, under a nitrogen atmosphere. The furnace was previously preheated. The foam density was about 50% to 60% steel's. Because of sintered samples contained too much cementite, a heat decarburizing treatment was carried out, after lathe machining samples surface. Samples were protected against excessive surface oxidations by using small pieces of coke.