Iron-based alloy for making a golf club head

Abstract

An iron-based alloy for making a golf club head includes: chromium in an amount ranging from 21.5 to 24.5 wt %; nickel in an amount ranging from 4.45 to 6.05 wt %; nitrogen in an amount ranging from 0.17 to 0.23 wt %; copper in an amount ranging from 1.5 to 3.5 wt %; carbon in an amount of greater than 0 wt % and not more than 0.06 wt %; and a balance of iron, based on a total weight of the iron-based alloy.

1 . An iron-based alloy for making a golf club head, comprising:
 chromium in an amount ranging from 21.5 to 24.5 wt %;   nickel in an amount ranging from 4.45 to 6.05 wt %;   nitrogen in an amount ranging from 0.17 to 0.23 wt %;   copper in an amount ranging from 1.5 to 3.5 wt %;   carbon in an amount of greater than 0 wt % and not more than 0.06 wt %; and   a balance of iron, based on a total weight of said iron-based alloy.   
   
   
       2 . The iron-based alloy as claimed in  claim 1 , further comprising silicon in an amount of greater than 0 wt % and not more than 1.0 wt % based on a total weight of said iron-based alloy. 
   
   
       3 . The iron-based alloy as claimed in  claim 1 , further comprising manganese in an amount of greater than 0 wt % and not more than 1.0 wt % based on a total weight of said iron-based alloy. 
   
   
       4 . The iron-based alloy as claimed in  claim 1 , further comprising silicon in an amount of greater than 0 wt % and not more than 1.0 wt %, and manganese in an amount of greater than 0 wt % and not more than 1.0 wt %, based on a total weight of said iron-based alloy. 
   
   
       5 . A golf club head, comprising an iron-based alloy including:
 chromium in an amount ranging from 21.5 to 24.5 wt %;   nickel in an amount ranging from 4-45 to 6.05 wt %;   nitrogen in an amount ranging from 0.17 to 0.23 wt %;   copper in an amount ranging from 1.5 to 3.5 wt %;   carbon in an amount of greater than 0 wt % and not more than 0.06 wt %; and   a balance of iron, based on a total weight of said iron-based alloy.