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  1. #1
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    hi ten 1020 tubing?

    anyone know the lowdown on high tensile 1020 tubing? just picked up a vintage panasaonic with this tubing but seems on the heavy side. how does this tubing add up to columbus sl or reynolds 531? thanks...

  2. #2
    Senior Member ken cummings's Avatar
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    High tensile anything generally means ordinary grade carbon steel. Weaker then special alloys so more is added, thus heavier. On the bright side it should be easily weldable.
    This space open

  3. #3
    Senior Member ollo_ollo's Avatar
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    There is a considerable weight difference: for example I have a 53 cm lugged frame in Columbus SL that weighs in at 4 pounds bare frame with no fork, bottom bracket or headset. A 53 cm Hi ten lugged frame came in at 7 pounds 2 oz. Don
    visit my homebuilding blog: www.monoplanar.blogspot.com

  4. #4
    Senior Member twiz's Avatar
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    do you have a pic of the panasonic? I have one too

  5. #5
    Senior Member DieselDan's Avatar
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    Channeling sydney: Gas pipe.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

  6. #6
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    I like Sheldon Brown's glossary entry for high-tensile tubing: "A fancy-sounding name for the ordinary tubing used to build cheap bicycle frames."

    Neal

  7. #7
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    Back in the day (70s, 80's) when "chromoly" tubing was "nice", steel frame material was identified by its properties (percentage of alloys in the steel).

    normal steel: 1020
    chromoly steel: 4130

    Chrome Molybdenum (sp ?).

    The numbers are like the Ti numbers (3-2.5 or 6-4) which also refer to alloying elements in the Ti (pure Ti is best for burning and making into white paint pigment, it's not very good for bike frames). I dunno what the steel numbers actually refer to.

    cdr
    "...during the Lance years, being fit became the No. 1 thing. Totally the only thing. It’s a big part of what we do, but fitness is not the only thing. There’s skills, there’s tactics … there’s all kinds of stuff..." Tim Johnson

  8. #8
    Decrepit Member Scooper's Avatar
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    - Stan

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