Low-density alloy and fabrication method thereof

Abstract

A low-density alloy and the fabrication method thereof are disclosed. The alloy comprises, in weight percent, equal to or greater than 15 wt. % but lower than or equal to 22.5 wt. % manganese, equal to or greater than 7.2 wt. % but lower than or equal to 9.0 wt. % aluminum, equal to or greater than 5.1 wt. % but lower than or equal to 7.8 wt. % chromium, equal to or greater than 0.6 wt. % but lower than or equal to 1.2 wt. % carbon and the balance of iron. The golf-club head made from the abovementioned alloy can obtain superior elongation, strength, damping capacity, and corrosion resistance even without any hot/cold working process, such as forging, rolling, etc.; therefore, the fabrication cost thereof can be obviously reduced.