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What steel to use to make a pistol extractor?

us55840
Thinking about making a obsolete pistol extractor that is no longer available.

What would be the best metal to use?

I'm thinking A2 tool steel with a hardness of RC 58-60 should work.

:?:
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Comments

11 comments

Date Votes
  • rufe-snow
    IMHO, the physical dimensions of the extractor, cartridge, chamber would be the most important factors. A lot of 22's I've worked on. Didn't even need extractors. Residual gas, blew the empty cases out of the chamber. On the other hand. Hot ammo in a rough chamber. Would break the extractor, if it was hardened to much.

    Specially if the extractor, has a small cross section in the "hook" area. Wouldn't be heat treating it at all.
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  • lew07
    OK Il bite . What is the pistol?
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  • us55840
    lew07 wrote:
    OK Il bite . What is the pistol?

    Grendel P-30
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  • Bill DeShivs
    I would use 1095 or O-1 heat treated to spring temper. 59-60 RC is too hard.
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  • babun
    Bill DeShivs wrote:
    I would use 1095 or O-1 heat treated to spring temper. 59-60 RC is too hard.

    +1

    I always selected the steel according to the job it needed to do.
    IE>> If it had to "bend" or "flex" on every cycle, then a different type was used than if the piece
    needed to be "hardfaced" to not wear out. A hammer head treated to be too brittle is just a handgranade waiting to explode. A drill bit too soft is just a waste of a drill motor's rotations.
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  • us55840
    Thanks
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  • charliemeyer007
    4140 in the about the 45RC after machining. Looks like flat stock will work nicely.

    https://www.gunpartscorp.com/products/1037390

    https://www.gunpartscorp.com/gun-manufacturer/grendel/p-30

    added Not the first time 'GunParts' is wrong. I think the quality you are looking for in steel is "toughness" that can surface harden to resist wear.
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  • us55840
    4140 in the about the 45RC after machining. Looks like flat stock will work nicely.

    https://www.gunpartscorp.com/products/1037390

    https://www.gunpartscorp.com/gun-manufacturer/grendel/p-30

    That item is not only 'out of stock' it is also incorrect. The extractor for the P-30 is NOT shaped as shown.

    I have the machinist drawing with dimensions for the extractor and it's not like gunparts shows nor does it interchange with the P-12, the extractor shown.

    ;)
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  • pip5255
    my rule has always been softer metal won't harm harder metals but a harder metal can certainly damage softer metals, that's how I start to make my own parts.

    forgot to mention, did you try calling the number in this listing ?
    https://www.gunlistings.org/california-gun-classifieds/yubasutter/all/212861/grendel_firing_pins_extractor_and_hammers_for_p30__r3
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  • us55840
    pip5255 wrote:
    my rule has always been softer metal won't harm harder metals but a harder metal can certainly damage softer metals, that's how I start to make my own parts.

    forgot to mention, did you try calling the number in this listing ?
    https://www.gunlistings.org/california-gun-classifieds/yubasutter/all/212861/grendel_firing_pins_extractor_and_hammers_for_p30__r3

    I saw that a few years ago.

    Notice where it says this listing is no longer active? Didn't try to call.
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  • buddyb
    Last one I made,I used a Sawzall blade.
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