Patent ID: 7749102

Claim:
An iron-type golf club head comprises: a main unit made of a carbon steel having a carbon content Ch (wt %) and integrally including a hosel; and a face plate made of a carbon steel having a carbon content Cf (wt %) and attached to the main unit, wherein the carbon content Cf (wt %) of the face plate is not less that 0.10 wt % and not more than 0.30 wt %, the carbon content Ch (wt %) of the main unit is not less that 0.20 wt % and not more than 0.40 wt %, and the ratio (Cf/Ch) of the carbon content Cf (wt %) of the face plate to the carbon content Ch (wt %) of the main unit is not less that 0.30 and not more than 0.90.