[MW:635] Re: Etch structure acceptance in IGC test per ASTM A262

The practice E table 5 specifies that for all grades Ditch structure as non acceptable. step, dual, end grain I and II as acceptable structure.

This is as per A262-02a e3 edition.

With regards,
Kannan Sundaram.

"Bathula Raghuram \(Mumbai - PIPING\)" <R.Bathula@ticb.com> Sent by: materials-welding@googlegroups.com 29/02/2008 12:27 Please respond to materials-welding@googlegroups.com

To "Materials & Welding" <materials-welding@googlegroups.com> cc Subject [MW:634] Etch structure acceptance in IGC test per ASTM A262

ASTM A 262 Practice E does not specify anything about the acceptance of Interdendritic ditch structure (refer Table 5)
 
Where as in others (like in practice C it is specified in non acceptance category)
 
When a report specifies for weld IGC as Interdendritic ditch structure, is it acceptable?

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