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[MW:9559] diameter and thickness limit

By Materials & Welding

Dear All,

My query is in regard to welder performance qualification diameter and thickness limit as per ASME Sec IX

As per QW 452.3, upper diameter limit is unlimited.

As per QW452.1b, for test coupon 13 mm and above, qualification limit is 'maximum to be welded.'

I would like to know that this "maximum to be welded" is to be considered same as unlimited or there is any limit.

With regards,

A.Husain


 

Comments

sudhan said…
TWO WELDERS QUALIFIED 6G POSITION IN 2 7/8" OD AND OVER WITH 14.2 MAXIMUM WELD METAL THICKNESS. CAN POSSIBLE TO ALLOW THESE WELDERS TO WELD 4" OD XXS THICKNESS (17.4 MM) AND COMPLETE THE JOINT.
May 22, 2012 at 10:17 PM
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