Attached is a image you can use to replace the standard CHROMY.tif image that IronCAD uses for its Chrome texture.
I have found that it gives me a more realistic chrome and more richer look to it.
1. DnD the Chrom texture from Metals Catalog onto part.
2. Go to Parts SmartPaint>Reflection Tab
3. Replace the Chromy Image with this one attached.
Hope it helps