Evidently not all chrome is created equal. I clean my clubs after every round with just water and an old toothbrush, and dry them. Here are my Wilson RM Midsize irons after more than 20 years use, the picture is the one I took to list them for sale. They had a couple dings and scratches, but the chrome was otherwise intact. The only club that showed a little more wear was the SW, for obvious reasons.