4 ms·

There’s also hot-dip galvanized and stainless steel rebar.

• rsync 5y ago
  ... with stainless being a much better (but much more expensive) choice. HD Galvanized is a coating whereas stainless steel is a different material - it is stainless all the way through ...
  • sgtnoodle 5y ago
    It's a coating, but my understanding is that it basically creates a battery that keeps the nearby iron from deteriorating. Small gaps in the coating therefore don't really matter as long as there is still some zinc nearby.
    • frosted-flakes 5y ago
      Like zinc anodes on a boat?
      • sgtnoodle 5y ago
        Yep, I believe that's the same mode of operation. The definition of galvanic is, "relating to or involving electric currents produced by chemical action."
  • redis_mlc 5y ago
    > stainless steel is a different material First time in my life that somebody said that about stainless steel. "On HN, our job is being pedantic."