oil hardening


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oil hardening

n
(Metallurgy) a process of hardening high-carbon or alloy steels by heating and cooling in oil. Compare air hardening
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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D-2 High carbon/chromium die steel 316% 817% S-7 Silicon tool steel 241% 503% 52100 Standard steel 195% 420% 0-1 Oil hardening cold work die steel 221% 418% A-10 Graphite tool steel 230% 264% M-1 Molybdenum high-speed steel 145% 225% H-13 Chromium/moly hot die steel 164% 209% M-2 Tungsten/moly high 117% 203% T-1 Tungsten high-speed tool steel 141% 176% CPM-10V Alloy steel 94% 131% P-20 Mold steel 123% 130% 440 Martensitic stainless 128% 121%
Cryogenics: pulling no tooling punches
I use oil hardening tool steel for these counterbores, because I have a lot of it on hand, but water-hardening steel works just about as well.
Relining the .22 rifle barrel: an alternate procedure: with a little ingenuity and a homemade drill, it's possible to reline a rifle barrel for little more than the cost of the liner

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