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For delayed cracking in welding 21/

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matnit

matnit

Materials
Sep 25, 2002
1
For delayed cracking in welding 21/4Cr steel,when do you guys do the NDE? Do you give 24hrs/48 hrs time before you do the NDE and is it after or before PWHT? Any reference to any standard/practice will be highly appreciated.
 
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