Author Topic: mystery steel  (Read 231 times)

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Offline hayshaker

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mystery steel
« on: November 14, 2017, 07:22:35 PM »
i have a old shop knife i made a little over a year ago. in the bushcraft style od canvas
scales. i use it primarily to split fatwood pieces for the firebox.
anyhow i made it from an old sawmill blade about 27in wide i'd say. i'm told
those were made of high carbon steel but that's it i don't know the full make up
of the metal other than that.
anyhow to do a streangh test i guess. i took a piece of insulated 3wire and bent it over the anvil.
layed the knife on the wire and gave the spine a good whack with a hammer.
that left 3 tiny indentations in the blade you needed a 10x loupe scope to see them.
i took the blade and gave it one pass on each side on the belt grinder lightly, and gone.
not bad i'd say it brought the edge right back, i used and old 220 gr belt.

Offline OffGrid9

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Re: mystery steel
« Reply #1 on: November 21, 2017, 02:02:47 AM »
Howdy, hayshaker,

There's an outfit, Force Technology, that's tailor-made for your purpose.  They can tell you the exact chemical makeup of your steel, and maybe even the Rockwell hardness, if you just send them your knife, along with maybe a couple thousand dollars.   http://bladesandbushlore.com/Smileys/krystl-white/puke.gif
   https://forcetechnology.com/en/energy-industry/biomass-and-waste/analysis-steel-metals

...One little problem...they only do destructive testing.  But at least you'd be sure of the steel that your knife USED to be made of.  http://bladesandbushlore.com/Smileys/krystl-white/rofl.gif
6 phases of a project:  (1) baseless enthusiasm; (2) growing uneasiness & fear; (3) over budget & behind schedule; (4) search for the guilty; (5) blaming of the innocent; (6) praise and rewards for the nonparticipants.

Offline OffGrid9

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Re: mystery steel
« Reply #2 on: November 21, 2017, 02:05:40 AM »
uhhh...looks like I need a few lessons on how to use those advanced smileys.
6 phases of a project:  (1) baseless enthusiasm; (2) growing uneasiness & fear; (3) over budget & behind schedule; (4) search for the guilty; (5) blaming of the innocent; (6) praise and rewards for the nonparticipants.

Offline hayshaker

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Re: mystery steel
« Reply #3 on: November 21, 2017, 07:33:35 AM »
off grid a few grand y ahh peanuts LOL,
for that kinda dough i can get a rockwell hardness tester and another belt grinder in 2x72 just saying

Offline OffGrid9

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Re: mystery steel
« Reply #4 on: November 21, 2017, 02:08:01 PM »
off grid a few grand y ahh peanuts LOL,
for that kinda dough i can get a rockwell hardness tester and another belt grinder in 2x72 just saying

Didn't mean to be taken seriously, Hayshaker...I was just funnin' ya.

The first emoji was SUPPOSED to be a puking-smiley (following my off-hand guestimate of $2k).  The second one was SUPPOSED to be a rolling-on-floor-laughing smiley.



6 phases of a project:  (1) baseless enthusiasm; (2) growing uneasiness & fear; (3) over budget & behind schedule; (4) search for the guilty; (5) blaming of the innocent; (6) praise and rewards for the nonparticipants.

Online Unknown

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Re: mystery steel
« Reply #5 on: November 21, 2017, 03:43:57 PM »
If you want to estimate hardness, have you considered a set of Test Files. tbh I don't know a lot about them.
 Using a set might help quantify some of your methods.
It is better to be a warrior in a garden, than a gardener in a war