I would not be hung up on terminology like whether it is an inclusion for the reasons the others outlined. You have a suspect indication. Ordering standards will often include statements regarding allowable visible surface defects; you should look at those and act accordingly.Is it allowable? What are your your standards for allowable surface indications? Is the acceptable size less than what you can see with the naked eye? If yes, have you set up inspections such as mag particle as has been outlined?
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Aaron Tanzer
Principal Research Engineer
University of Dayton Research Institute
Beavercreek OH
(407) 247-9557
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Original Message:
Sent: 04-18-2024 13:49
From: Rodney Recore
Subject: Steel Visual Inclusions
Good afternoon to all members and I am reaching out to see if someone has a good visual interpretation of an inclusion that is visible to the naked eye. I have some microscopic images but I am trying to create a visual aid for our floor personnel to give a quick determination of a suspect nonconforming product. We are a high production induction heat treat operation so the visual picture / aid will allow us to at least raise the red flag for employees around the clock. It will allow us to at least contain the product until a more precise determination can be assessed with a team effort.
We run a low carbon steel bar in the 1043 range but any good image at this point will be beneficial.
Thanks again as always for all your support!
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Rodney Recore
Plant Process Metallurgist
Brunner International
Gasport NY
(716) 998-9823
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