S&W Airweight frame composition

S&W Airweight frame composition

This is a discussion on S&W Airweight frame composition within the Defensive Carry Guns forums, part of the Defensive Carry Discussions category; In reading the Gun Digest Book of S&W I find this... "Aluminum is much lighter and softer than steel. What makes aluminum appear hard is ...

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Thread: S&W Airweight frame composition

  1. #1
    VIP Member Array semperfi.45's Avatar
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    Question S&W Airweight frame composition

    In reading the Gun Digest Book of S&W I find this...

    "Aluminum is much lighter and softer than steel. What makes aluminum appear hard is anodizing. The hard coat anodizing we are all familiar with is a surface treatment, not a through hardening like heat treatment is. Once you either wear through the anodizing, or break it, the softer substrate will quickly peen or propogate the crack".

    Is this true of the newer Airweight's or is the Airweight composed of an aluminum alloy that is hardened through? I ask because I recently cracked my 442-2 just forward of the thumb piece where the center pin rubs against the frame. S&W customer service came through for me and replaced it with a no lock 442.
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    Ex Member Array LSP972's Avatar
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    Yes, its true.

    At least, of earlier AirWeights.

    With the recent-production (since the late 90s) guns being "rated" for +P ammunition now, they are obviously doing something different.

    The early AirWeight guns would stretch at the top strap when fired with a lot of high-pressure rounds.

    So it depends upon what vintage AirWeight J frame we're talking about...

    .

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