[MW:1990] Re: length of specimen

Dear Sadique,

 

For welder qualification Minimum length of  6" (150 mm) required to be radiographed , and shall include entire weld circumference of pipe,it is same for all pipes, for small bore pipe , multiple coupons to be required but it should not exceed 4 coupons,

 

If you want more details refer QW-302.2  , QW-304 of ASME Section IX

 

Mubarak.

 

On 4/19/09, sadique sheikh <mails_sadique@yahoo.com> wrote:

Hi all of you. For welder qualification what should be the minimum length of specimen required? Is it same for all sizes of pipes? Can i get the referance from section 9 for this? Regards Sadique

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