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| High-Performance Blades Sharing ideas for getting the most out of our steel. |
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#1
05-16-2003, 07:05 AM
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M35
Can anyone tell me anything about the steel M35? Good for blades? Quenching? Tempering? Thanks, Roc
__________________ "Many are chosen, but few are Pict" "The doer alone, learneth" NT Neo-Devo 
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#2
05-16-2003, 08:27 AM
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I've never heard of anyone using it, but it should make a pretty good blade. Crucible calls it CPM REX M35HCHS.
Formula: Carbon 0.98% Manganese 0.70 Silicon 0.40 Chromium 4.05 Vanadium 2.00 Tunsten 6.00 Molybdenum 5.00 Cobalt 5.00 Sulfur 0.22 Working with it isn't going to be any fun. Most of those alloying elements are in there as carbides, so it will be VERY tough to grind. The hardening temperature is 2150-2240F, which is rough on most ovens. Must have fast quench to below 1300F. It requires triple tempers at 1000-1100F. Final hardness is given as Rc63-65, depending on the schedule used. Toughness is greater than M2 which is pretty tough stuff in my experience. Personally, I wouldn't touch it.... 
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#3
05-16-2003, 12:00 PM
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Yeeouch! My grinding belt collection is over in the corner, crying and cowering in fear!
 Sure doesn't sound like anything fun to work with, but I sure wouldnt mind having a little, thinly ground utility knife out of it to play with.
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#4
05-17-2003, 05:55 PM
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Thanks Jerry for you fast informative reply. The pieces i have are blades from a lathe in a machine shop. They are already close to blade shape. 1/8x 7/8x 6". 1/8 being the back of the spine, flat ground to just over 1/16 at what would be the blade edge. I have 6 of them if anyone wants to trade me out of one or two.Can't be worth much tho.
__________________ "Many are chosen, but few are Pict" "The doer alone, learneth" NT Neo-Devo
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#5
05-17-2003, 11:00 PM
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If those are the fully hardened type of blade, you've got pretty decent knife fodder there. I was really into using planer blades a couple of years ago as knife blade material and learned to steer clear of those planer blade types that had a strip of hardened steel on the very edge but had a different, softer steel as the bulk of the blade.
The fully hardened planer blades make great thin bladed knives. Fairly tough and hold an edge well. Very rust prone, however. Grind a blade out of one and give it a whirl. My wife's favorite kitchen knife is one I made from a planer blade. All the best, Mike U. __________________ If it's stupid but works, then it isn't stupid.
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| blade, knife, knives |
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