Thread: Why do they use 4140 for gun barrels?
View Single Post
  #1   Report Post  
Posted to rec.crafts.metalworking
clark clark is offline
external usenet poster
  
Posts: 48
Default Why do they use 4140 for gun barrels?
That steel can get incredibly hard if it gets hot, but the barrels are not very hard at all.

Why pay extra for tool steel?

TIA
Reply With QuoteReply With Quote