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groove weld material thickness

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moe27

Industrial
Joined
Oct 25, 2013
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37
Location
GB
Can a WPS be qualified to unlimited material thickness groove joint?
I know you can qualify up to 8" but what about thicker material??

Thanks,

moe27
 
Depending on the Edition of ASME Section IX, review QW-451.1 for WPS qualification ranges. See Note 6 (2013 Edition)

(6) For test coupons over 6 in. (150 mm) thick, the full thickness of the test coupon shall be welded.

For the 1.5 " to 6" coupon thickness the maximum qualified for a WPS is 8"

Beyond the 6" coupon thickness, the coupon thickness qualified is 1.33T as the maximum thickness.
 
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