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  1. L

    Mainspring Fabrication

    FYI for those interested, not all steels convert to full martensite instantly. The start is instant when it happens, but some steels are slower to complete conversion than others. O1 is one of those steels and in my experience with it, can take up to 10/12 minutes, even more on a scientific...
  2. L

    Mainspring Fabrication

    The conversion from austenitic steel to martensite actually happens during the quench process in the range of 400°f to 450°f. When it happens, it happens at the speed of sound. When you cool austenitic steel from in the range of 1475° to 1550° depending on the grade of steel, to under 900°, at...
  3. L

    Mainspring Fabrication

    How do you get a powerful spring from austenitic steel, beyond the elasticity it would already possess when cooled, if you do not convert it to tempered martensite?
  4. L

    Mainspring Fabrication

    Well, it does have direction until its heated to somewhere over about 1330°F, which takes away the direction and somewhat changes the shape of the grains, so you were only half mistaken.
  5. L

    Rehardening frizzens - one size fits all? Musings for metallurgy masterminds....

    Maybe boil in clean water or wash with a soda solution? How soon after do you get the corrosion?
  6. L

    Rehardening frizzens - one size fits all? Musings for metallurgy masterminds....

    Po Possible Rich, but I never noticed any more or less and I have the St Johns river for a front yard. I am curious to know what I have missed. I never had rust problems with guns or knives in my shop. Nothing out of the ordinary, and less than one might expect. Now then, with the file...
  7. L

    Rehardening frizzens - one size fits all? Musings for metallurgy masterminds....

    That is what I asked. I don't know what needs neutralizing. It is my understanding that salt brine evenly coats the steel in salt by some form of natural action which prevents an unwanted vapor jacket forming by breaking any vapor formation as fast or faster than it forms, thus preventing uneven...
  8. L

    Flintlock pistol holster

    You are a super fine artisan, highly talented leather craftsman, but that just wasn't done. Saddle bucket holsters, yes. Belt holsters no, they are not to be found. At least not in anything we could call a pistol holster. Great piece but not HC/PC in your wildest dreams
  9. L

    Rehardening frizzens - one size fits all? Musings for metallurgy masterminds....

    What effects do you get? I have never noticed anything other than the 1095 steel being hard and grayish in color. What is your recipe for brine? I used one 26-ounce box of sea salt per two gallons of bottled water, heated to a clear solution, cooled, then rewarmed to maybe 100°/110°F. in a...
  10. L

    Green River knives

    They seem excellent for mountain man period. I especially like the peened iron pin rivets and the lack of a ricasso and the overall grind.
  11. L

    Rehardening frizzens - one size fits all? Musings for metallurgy masterminds....

    Years ago, I found that in making fire strikers from 1095 a brine quench was less "violent" upon entry, and I never had one crack. I did have some crack using a water quench before I tried the brine.
  12. L

    Tacks…were they an Eastern thing?

    Mostly mountain man times. Post 1800. Little to near none in the 18th C. East. Original brass tacks in the west were cast in one piece and were not quite as high domed as now.
  13. L

    Mainspring Fabrication

    Hi Dave, grain direction doesn't really exist beyond that which the mill rollers give it in bar production, and that only lasts until the first time the steel is heated into the austenite heat range which causes any grain direction present to become much more like common flake board in shape and...
  14. L

    Green River knives

    The Russell Green River blades are very good, to be correct stay with steel/iron pins and very plain woods. The originals were just tools. NDNs sometimes decorated and carved grips, but the most common were starkly plain.
  15. L

    Green River knives

    Can't say about Nowill pins but original trade knife pins were iron, peened/riveted. The two piece brass cutler rivets came into use in late 1800's and the blades were not scandi ground.
  16. L

    Frizzen sole material

    Harden the sole first, use 60/40 soft solder to mount to the frizzen face. It flows around 370°, give or take a degree or two, which will attach and temper your sole to just about perfect. Silvaloy hard solder melts and flows around 1200° or 1250°, but that is still too hot for your needs.
  17. L

    Frizzen sole material

    Wootz steel is also a crucible steel. What is commonly called Damascus steel today is two or more different steels/iron folded and hammer forge welded in layers to make decorative patterns in the billet. Wootz steel might be considered a mono steel. Common Damascus steel will have one its steels...
  18. L

    Flat Face Locks on Northwest Gun?

    Listen well to Rich. He knows of which he speaks. Dead on!
  19. L

    Steel

    NO! Not even. Not for a serious working knife. Common RR spikes are worthless and just a joke for real working knives. Even RR spikes with a HC on the head have only around .30% carbon content on average and you will barely get any noticeable hardness from them, no matter how you heat treat...
  20. L

    New Snake Powder Measure

    Really nice workmanship but how do you manage a consistent measure of powder? Just curious.
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