Abstract: An Fe-Mn-Al alloy is useful for making a precision casting having uneven or thin wall thickness. The alloy, which contains carbon 1.5-2.0% manganese 32.36% aluminum 6-8%, molybdenum 1.0-1.5% and iron remainder, is heated to 1400.degree.-1420.degree. C. to melt, an the molten alloy is poured into a ceramic mold which is preheated to 1300.degree.-1320.degree. C.; the ceramic mold having a wall thickness of about 5 mm and an air permeability of about 6.5.times.10.sup.-3 cm.sup.3 /sec.cm.sup.2. aq.The castings are further welded into a shaped article such as a golf club head, and then heat treated to adjust its toughness and hardness.