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Sect IX QW-416 ??

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4fletch

4fletch

Materials
Jan 16, 2003
17
Regarding Table QW-416 Filler Metals QW-404.23 Solid or metal-cored to flux cored: in the Brief of Variables column, the Legend symbol is "t" indicating thickness. Is that symbol correct or should the "Change" symbol have been used??
 
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Yes, it appears so. I compared the 2004 Edition (Article IV Welding Data) with the 2003 Addendum (Article IV), and the 2003 Addendum shows no symbol at all for filler metal QW-404.23 in Table QW-416.

Interestingly, if you review the essential variables for the welding processes in QW-255, they show a change symbol for QW-404.23.
 
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There is no symbol for this essential variable (Gtaw &Paw),
pl refer QW 256
 
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