comment: >
  
  It's really a cost/benefit. It's cheaper to have steel and paint it properly than to use other things.
  I had a project in a materials science class. We speccd bronze for corrosion. We pitched it hard but ultimately they were unswayed....the academic professor with 0 profit motive still favored steel.
  In real life I've seen exquisitely expensive copper alloys in sewage system compnents and ship propellers. Rust is expensive there, so they cough up the money.
context: This is a friendly reminder to read our rules.
  Remember, /r/Showerthoughts is for showerthoughts, not "thoughts had in the shower!"
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  Rule-breaking posts may result in bans. >
  
  Hey check out my gold car. Only costs a million. Handles like crap. Weighs as much as tank. >
  
  Stainless steel is a little more expensive and heavier than aluminum, and more costly to make.  
  But obviously more viable than gold. >
  
  Gold is like 4 times heavier than stainless steal. It’s dense as fuxk. >
  
  Sorry, I edited. I meant stainless steel is heavier than aluminum. Which cars are made from aluminum. >
  
  Between cost and material strength, it isn't worth it to use other metals. >
  
  The Delorean was brushed stainless steel with no paint or clear coat.