Posted by Skaning on February 21, 2013 at 20:22:56 from (184.21.242.202):
In Reply to: Cutting oil posted by Harvey 2 on February 21, 2013 at 16:38:03:
Actually, what happens when you heat and quench steel is the metal goes through changes in it's crystal structure and the amount of carbon in the steel to begin with governs how it hardens. Low carbon steels won't harden, higher ones will, generally the more carbon, the harder the quench will take it. The hardened steel is stronger but more brittle. Adding other metals like chrome, nickel, moly when the steel is made will change the strength and toughness of the steel and how it hardens. What you quench it in has no bearing on carbon content. That's built into the steel at at the mill.
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Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
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