A golf club head includes a rust-resistant coating layer forming on a base
surface of at least one club head component of the golf club head. The
rust-resistant coating layer is made from a Fe--Co--Ni alloy including
iron of 5-20 wt %, cobalt of 5-25 wt % and nickel of 60-90 wt %, which is
a nanometer-scaled material. The rust-resistant coating layer isolates
the base surface of the club head component of the golf club head such
that oxygen in the atmosphere cannot oxidize the base surface of the base
surface of the club head component of the golf club head. Thereby, the
rust-resistant coating layer carries out an increase of the antirust
ability and hardness of the club head component of the golf club head.