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rusting of 304 grade stainless steel wire

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6 years 10 months ago #956 by Archived Forum Admin
We are facing a problem, the stainless steel wire gets rusted.The diameter of wire 2.80mm bright skin passed
Can any one help to find the cause.
Thanks
Wire1

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6 years 10 months ago #957 by Archived Forum Admin
Hello there,

(A) I suggest you read the following web page created by Atlas Steels Australia very carefully:

www.azom.com/details.asp?articleID=1177

(B) You may have iron contamination of the 304 stainless steel alloy. This is also known as embedded iron and leads to contamination rust staining. Go to the European Stainless Steel Development Association web site at www.euro-inox.org/ then follow this trail:

Select Area of Interest
Select Materials & Applications
Select The European Inox Materials and Application Series
Select Pickling and Passivating Stainless Steel
Select Download a PDF
Select View Immediately

You can read it right away and you can save a copy with your Adobe Acrobat Reader

(C) If you draw regular (non-stainless) steels on the same machine, make certain that the capstans are in very good shape (No grooving.), clean and that the drawing machine and drawing powders/ soaps are perfectly clean so that you are not contaminating (embedding) your own mild steel particles in the stainless steel wire.

Kindest regards,
Peter J. Stewart-Hay
Principal
Stewart-Hay Associates
www.Stewart-Hay.com

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