US Patent 7214143 Golf club head with a face insert

A golf club head (20) having a body (22) with a front wall (30) with an opening (32) and a striking plate insert (40) is disclosed herein. The striking plate insert (40) has a substrate base layer (40a) and a second layer (40b). The second layer (40b) is preferably composed of a nickel-iron alloy material. The golf club head (20) preferably has a volume between 200 cubic centimeters and 600 cubic centimeters. The golf club head (20) preferably has a mass between 140 grams and 215 grams.