| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce weight, provide excellent opportunity and increase an arrangement space of a balance weight of a golf club head by manufacturing the golf club head using an alloy.SOLUTION: The alloy for golf club heads has low density and high strength. In mass percentage, the alloy is formed of 7.35% to 8.35% aluminum, 1% to 1.5% vanadium, 0.05% to 0.15% silicone, 0.4% or less iron, 0.25% or less oxygen, 0.01% or less carbon, 0.05% or less nitrogen, and the balance titanium. The density of the alloy is 4.31 g/cmto 4.33 g/cm.</p> |
