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  1. robertadc

    ASTM A400 Class Q2

    I am trying to bid a job and this is the callout for the material. It would not be cost effective to buy a spec just to bid the job. I would not have asked the question if I had the spec.
  2. robertadc

    ASTM A400 Class Q2

    Thanks for the reply. I don't have the specification. I see that they reference A108, A304, A311, A322, A633, and A675. Per the stated strength levels, I see that 4140 HT per A322 could work, but I can't be sure without more info. This application would use a 4.25"+ round bar.
  3. robertadc

    ASTM A400 Class Q2

    Can someone tell me what material/materials would meets ASTM A400 Class Q2?
  4. robertadc

    Unkown symbol on drawing

    MechNorth, Thanks for the clarification. flash3700, Thanks for the information. The .001 tolerance range on the dimensions pretty much gave their criticality away. Robert
  5. robertadc

    Unkown symbol on drawing

    That should be calipers not clipers. Is there no edit feature?
  6. robertadc

    Unkown symbol on drawing

    MechNorth, I don't understand what you mean when you say that calipers would only be acceptable for measuring LMC. Do you mean that they could only be used to verify that the part is not too small? I should also point out that for measuring the width, the part is small enough that the entire...
  7. robertadc

    Unkown symbol on drawing

    The drawing is from 1986. It looks like it is hand drawn except for some pre-printed blocks and general notes.
  8. robertadc

    Unkown symbol on drawing

    "Assuming it conforms generaly to ASME Y14.5m-94 or similar (does it say on the print?) then .5531 would not be acceptable, the upper limit is .55300000000000000000000000000000000000000000000000000000... regardless of that symbol." Yes, ANSI Y14.5M applies (it doesn't say which version, I...
  9. robertadc

    Unkown symbol on drawing

    I have a drawing that has a circle with a horizontal line across it when specifying a range of dimensions (see attached picture). This is done for a diameter as well as linear dimensions. Does anyone know what this means? It is from a GE drawing. I'm sure if I stay within the limits, it...

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