One of the most common questions I am asked from customers is "I've had these irons for ten years. Do you think I should replace the shafts?" The fact is shafts do not fatigue over time - they will perform just as well now as they did 10 years ago. As long as the shaft has not been damaged in any way it is fine for continued use.
The same is true for faces of clubheads. They do not lose strength or integrity over the course of time. Current driver faces are made of titanium which is an extremely hard, lightweight material. Faces of fairway metals and hybrids are stainless steel although some are titanium. Faces of iron are either stainless steel or carbon steel. There are irons models available with titanium face inserts.
Faces of drivers and fairway metals can crack although it is rare. I would recommend having your grips inspected every year or so if you play regularly. New and properly sized grips can make a huge difference is how the club feels to you.
If you have any questions about your equipment or your game please feel free to send me an email or call me at the shop. I will be happy to answer your questions.