As a recipient of Zinc overload and Metal Fume poisoning, I strongly say stay away from the galv. plated materials. We learned through the process that it starts giving off vapors at very low temps. We know this low, but why chance it. My experience was when I was prototyping my smokers, I decided to see if I could buy a part rather than make. I found a part at local sporting good chain that was sold as a replacement smoker plate for another brand of smoker.I misidentified that plating for bead tumbling. Big mistake. Long story short, after cooking once a week for 11 weeks, enough food to warm for 5-6 days of eating each cook, I consumed enough Zinc to almost die. Almost is the key word. Also by the time I was thinking straight( it dissipates with time), my blood levels had gone to non lethal level. Which means harder to prove. Next up is later stages of Metal Fume disease, breathing problems later. After 18 months of trying to find representation, 44 firms total here and and overseas, six told me that they did not want to fight the parent company, one of our largest retailers. They also said my estate would gain big money should I have passed. We now use fresh 3/16" to 1/4" steel. laser cut, NO plating. One reason I bring all of this up is my experience partly, but think about all the people buying that part grilling the meal for the family and shortly after getting sick, going to doctor, all they focus on is food poisoning not the real problem. Sorry for the rant, that subject touches my nerves. Stay safe. Steve.