Patent ID: 6776728
Filing Date: 2004-08-17
Classification: A63B,C22C

Abstract:
A weight member for a golf club head, the weight member being made by a WFeNi alloy manufactured by means of a precision casting process, the WFeNi alloy comprising wt 15%-40% of iron, wt 30%-60% of nickel, wt 15%-30% of tungsten, wt 1.5%-10.0% of chromium, and wt 0.5%-5.0% of molybdenum: wherein the tungsten is used to adjust a desired weight of various golf club heads and said percentage of the chromium ranges between 1.5-10.0 wt % that can avoid precipitating a pearlite structure in a &ggr; (iron, nickel) phase of the weight member and reduce manufacture cost; and the molybdenum can improve the welding property of the weight member.