The best replacement for galvanized is stainless steel.

The best alternatives to galvanized are rated as following:
★★★★★  stainless steel
★★★  zinc plated
★★  zinc
★★  galvalume
★  galvannealed
★  aluminum gutters
★  stainless
★  black pipe
★  copper
★  painted
★  aluminum boat trailers
★  copper pipe
★  stainless steel screws
★  bonderized
★  aluminum trailer
★  aluminized
★  non galvanized
★  copper plumbing
  hot dipped galvanized
  powder coating
  stainless steel bolts
  aluminum trailers
  zinc coated
  galvanised
  powder coat
  stainless steel nails
  zinc stronger
  powder coated
  aluminum boat trailer
  galvanneal
  copper pipes
  zinc plating
  galvaneal
  zinc bolts
  stainless cable
  hot dipped galvanised
  painted steel
  hot dipped
  black iron

Your alternative for galvanized is not listed? Suggest!
Speaking about galvanized, one probably shouldn't forget about brass.

Other search terms related to galvanized and their ratings are:
★★★★★ brass
galvanized
You have in mind a companion for galvanized and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of galvanized in all years. Click on graph for more.
galvanized
stainless steel
zinc plated