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  1. aidrock

    A240 vs A276/A479

    A HUGE THANK YOU to both bmoorthy and OGMetEngr for taking the time to answer the question posed. I very much appreciate your feedback on this and am waiting to see if the substitution will be approved.
  2. aidrock

    A240 vs A276/A479

    metengr - you are missing the point of my question. Ignore the error that we made in ordering the "wrong" material - that is not material (pun intended) to this discussion. MagBen - Thank you for actually looking and answering the question I have (What are the differences, if any, between the...
  3. aidrock

    A240 vs A276/A479

    I am still looking for these suggestions - none have been stated . . . I agree 100% that we ordered the "wrong" material, but am simply asking if it could be the "right" material. I am attempting to begin a discussion with our client and just want to make sure I have all the facts so that I am...
  4. aidrock

    A240 vs A276/A479

    Your thoughts on forming is exactly what I was hoping to find out here - are these materials identical or not??? I understand that not knowing the application makes this a more difficult question to answer as to the comparativeness of the materials. If someone with experience in these material...
  5. aidrock

    A240 vs A276/A479

    Ed, Thanks. I understand about all of the purchasing issues and am not looking for a lesson on how to buy and really there is no reason to chastise me for it - that is not the subject of my request. I am not looking to "get one over" on our client, but am hoping for someone to actually look at...
  6. aidrock

    A240 vs A276/A479

    Please bear with my explanation below as I am a Civil Engineer working in a custom equipment building shop currently and am still working through all of the proper terminology. I am working on a project that specified 1.00 x 4.00 x 9.0 Type 304L/ASTM A-240 for a certain part that is final...
  7. aidrock

    Hardcoat Anodizing Halos or ghosts

    SincoTC - Thank you very much for that link. Great article. TVP/SincoTC - Agreed that there is lots of information on the Internet, problem is using the correct search words and/or knowing the good sites to go to. I will definitely have enough reading to keep me busy this weekend!! Thank you...
  8. aidrock

    Hardcoat Anodizing Halos or ghosts

    Thanks for the information all!! SincoTC: These markings are occurring along the sides of the round stock, not the ends. I am not sure if Back/Butt/Bar-end defects you are referring to are only at those locations of if they occur throughout the bar (including sides)? You are correct - we...
  9. aidrock

    Hardcoat Anodizing Halos or ghosts

    ok - just seems odd that the first run of 75 pieces yielded 0 rejects and the second run yields 50%!! Are there any ways to combat this issue? You say the "anodize guy is not entirely lying" . . . what is meant by entirely? Is he partially pulling my leg? Really need some good...
  10. aidrock

    Hardcoat Anodizing Halos or ghosts

    I am working on a project for a client where we have turned a cylinder (AL 6061-T6) to a certain diameter ~2" and must have it "black hardcoat anodize, teflon impregnate, .0008/.0010 thick buildup". We do not do the hardcoat anodizing (Type III, Class 2) or teflon coating in house. The first...

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