Posted by Janicholson on January 07, 2022 at 09:28:32 from (24.240.46.228):
In Reply to: Re:445 lift arm posted by rrman61 on January 06, 2022 at 21:35:25:
7018 is real likely to have worked well. 200 degrees C might work to normalize the heat affected zone, but 200F was just a nice day in the sun. Best of luck. Lower critical temp likely to be 800 F to change properties, Dark Grey in the chart. I require my students to temper and normalize medium carbon steel every semester. Jim
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Today's Featured Article - Old Time Threshing - by Anthony West. A lovely harvest evening late September 1947, I was a school boy, like all school boys I loved harvest time. The golden corn ripens well and early, the stoking, stacking,.... the drawing in with the tractors and trailers and a few buck rakes thrown in, and possibly a heavy horse. It would be a great day for the collies and the terrier dogs, rats and mice would be at the bottom of the stacks so the dogs, would have a busy time hunting and killing, all the corn was gathered and ricked in what we c
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