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Thread: Thickness Gauge Conversions

  1. #1
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    Thickness Gauge Conversions

    Hi. Wondering if anyone knows where I could down load a chart for conversions
    Thickness Gauge to fractions. decimal. and mm. I'm sure I have seen them on WW at one time
    Thanks.

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    Re: Thickness Gauge Conversions

    I googled steel gauge to inch chart. Many to choose from. Pick your favorite.
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    Re: Thickness Gauge Conversions

    1st on WeldingWeb to have a scrolling sig!



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    Re: Thickness Gauge Conversions

    Thanks Burt. and Oscar.

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    Re: Thickness Gauge Conversions

    I compared the one I have been using to Oscar's and noticed mine is B&S gauge, which is quite a bit different. I looked up what the B&S stood for and got this:

    "The Brown & Sharpe (B&S) Sheet Metal Gauge (also known as the American Wire gauge, or AWG) is the American standard for ordering wire and sheet sizes. One side of this sheet metal gauge from General Tools is marked 0 to 36 in AWG sizes, while the decimal inch equivalents are marked on back. An essential tool for both jewelers and metalsmiths needing to quickly determine the thickness of sheet metal or metal wire."
    I didn't realize that there were multiple standards for specifying sheet thickness - can someone explain why there are 2 and which one is most correct for sheet metal?
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    Re: Thickness Gauge Conversions

    Now I'm really confused. Looked at metalsupermarkets.com and they show gage charts for different alloys that have different dimensions.

    https://www.metalsupermarkets.com/wp...auge-Chart.pdf
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    Re: Thickness Gauge Conversions

    Quote Originally Posted by jrporter View Post
    Now I'm really confused. Looked at metalsupermarkets.com and they show gage charts for different alloys that have different dimensions.

    https://www.metalsupermarkets.com/wp...auge-Chart.pdf
    Yep.... thermal expansion coefficients can really play havoc on numbers!!!!






    Remember those are by Gauge.... and if you look how 'Gauge' is determined you'll see why it varies.

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    Re: Thickness Gauge Conversions

    I downloaded mine from here years ago. Someone had posted it in a Microsoft Word and I just saved it as a PDF. For me as a hobbyist it's accurate enough.
    1st on WeldingWeb to have a scrolling sig!



  10. #9
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    Re: Thickness Gauge Conversions

    Gauge vs thickness depends on the metal in question.

    16 gauge copper is a different thickness than ss, aluminum or sheet metal etc. I think of it like Troy ounces or precious metal is not measured the same as other metals. That's the best analogy I can offer and I don't have time to goooogle it but as the op pointed out, there are different tables with different thickness for metal. I mostly see tables for sheet metal but I'm sure the sparkles are used to working with copper.


    Edit: I see ronsi already posted a chart before I posted. Good explanation ronsi, I honestly didn't know it had to do with thermal coefficient but that does explain a lot to me.
    Last edited by Insaneride; 12-29-2020 at 12:28 PM.

  11. #10
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    Re: Thickness Gauge Conversions

    Here list of steel gauges
    Note: look for wrong gauge charts each industry's used there own sizes.

    Overs year you remember the basic sizes



    Carbon Steel Gauge Chart*
    Gauge
    Number Inches MM
    7 | .1793 | 4.554
    8 | .1644 | 4.175
    9 | .1495 | 3.797
    10 | .1345 | 3.416
    11 | .1196 | 3.038
    12 | .1046 | 2.656
    14. | .0747 | 1.897
    16 | .0598 | 1.518
    18 | .0478 | 1.214
    20 | .0359 | .911
    22 | .0299 | .759
    24 | .0239 | .607
    26 | .0179 | .454
    28 | .0149 | .378
    Quote Originally Posted by Josey View Post
    Hi. Wondering if anyone knows where I could down load a chart for conversions
    Thickness Gauge to fractions. decimal. and mm. I'm sure I have seen them on WW at one time
    Thanks.
    Last edited by smithdoor; 12-29-2020 at 03:46 PM.

  12. #11
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    Re: Thickness Gauge Conversions

    I believe Machinery's has tolerances on sheet metal, or maybe it was something else I read. Sheet metal is not standard. It has a range of thickness within each gage. I have the specs somewhere.

    https://www.ebay.com/itm/Precision-M....c100008.m2219

    I dunno if you can find these in real numbers anymore(I got mine about 100yrs ago)...........looks like all the ones out there are metric. Worthless. But anyways......these will give you the absolute true dimensions so there's no guesswork.

  13. #12
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    Re: Thickness Gauge Conversions

    Just in case you are interested, Miller sells a handy material thickness gauge. It is around $5.00. I keep a couple close by, one hangs on my welder cart. I don’t think many people are aware of these.

    https://www.millerwelds.com/accessor...s-gauge-229895
    Burt
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  15. #13
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    Re: Thickness Gauge Conversions

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  17. #14
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    Re: Thickness Gauge Conversions

    Quote Originally Posted by wb4rt View Post
    Just in case you are interested, Miller sells a handy material thickness gauge. It is around $5.00. I keep a couple close by, one hangs on my welder cart. I don’t think many people are aware of these.

    https://www.millerwelds.com/accessor...s-gauge-229895
    Yep, they are handy when dealing with thin stuff... I have 5 or 6 of them laying around... if I remember right they came with welders??? I think I also have a similar one without the miller name on it that came with an old plasma.

  18. #15
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    Re: Thickness Gauge Conversions

    I like these kind since they give a wider number of sizes.

    https://uploads.tapatalk-cdn.com/202...87e4640bbc.jpg

    https://uploads.tapatalk-cdn.com/202...411e2616e8.jpg

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  20. #16
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    Re: Thickness Gauge Conversions

    Quote Originally Posted by ronsii View Post
    Yep, they are handy when dealing with thin stuff... I have 5 or 6 of them laying around... if I remember right they came with welders??? I think I also have a similar one without the miller name on it that came with an old plasma.
    I got a couple of them when I bought a new machines .
    I prefer the round ones like Pat shows.
    Happy New Year Guys !


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  22. #17
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    Re: Thickness Gauge Conversions

    I have a Starrett and a cheap generic US Standard gage for sheet and plate.

    Pics tell the story. Starrett on the left. El-cheapo on the right.


    https://uploads.tapatalk-cdn.com/202...0cec9acf80.jpg




    https://uploads.tapatalk-cdn.com/202...2d703a0483.jpg


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    :

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  24. #18
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    Re: Thickness Gauge Conversions

    One caution that you want to remember is that a standard wire gauge will read 2 gauge numbers LOWER than a U.S standard gauge for sheet and plate. Thus making you think that you have a thicker piece of sheet than you have ! Also,copper sheet for the sheet metal industry,is determined by ounce designation per square foot. That is, 16 Oz. Copper sheet weighs 1 pound per sq.ft.
    16 Oz copper,one of the most commonly used in the sheet metal industry, is equal in thickness to 24 ga or a tight, tight 25 ga. on a sheet and plate gauge. 👍
    Last edited by hommeacier; 01-16-2021 at 02:04 PM. Reason: Additional info

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