Metal alloy for manufacturing golf club head members

Abstract

A metal alloy applied to manufacture a club weight member of a golf club head includes carbon less than 0.08% by weight, silicon of about 0.5% to about 2.0% by weight, manganese of about 0.5% to about 2.0% by weight, nickel of about 5.0% to about 15.0% by weight, chromium of about 15.0% to about 30.0% by weight, tungsten of about 5.0% to about 15.0% by weight and the balance is essential iron. Accordingly, the metal alloy has a high degree of mechanical strength and extensibility, and functions as a weight material of the golf club head.

1 . A metal alloy for manufacturing a club weight member, comprising:
 carbon less than 0.08% by weight;   silicon of about 0.5% to about 2.0% by weight;   manganese of about 0.5% to about 2.0% by weight;   nickel of about 5.0% to about 15.0% by weight;   chromium of about 15.0% to about 30.0% by weight;   tungsten of about 5.0% to about 15.0% by weight; and   the balance being essentially iron.   
   
   
       2 . The metal alloy for manufacturing the club weight member as defined in  claim 1 , further comprising an incidental impurity of phosphorous less than 0.04%. 
   
   
       3 . The metal alloy for manufacturing the club weight member as defined in  claim 1 , further comprising an incidental impurity of sulfur less than 0.04%. 
   
   
       4 . The metal alloy for manufacturing the club weight member as defined in  claim 1 , further comprising molybdenum less than 1.0%. 
   
   
       5 . The metal alloy for manufacturing the club weight member as defined in  claim 1 , further comprising copper less than 1.0%.