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ASME IX QW 452.1 (b) (3) Interpretation 1

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SuPeR9981

Mechanical
Joined
Jul 19, 2018
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MY
QW 452.1 (b)(3)
Thickness of test coupon of 3/4 in . (1 9 mm) or over shall be used for qualifying a combination of three or more welders
each of whom may use the same or a different welding process .

How to interpret this statement?
If I weld 20" sch 160 (50.01mm) of pipe using two welders is that allowable? Or I must qualified using 3 or more welders?
 
Dear Super,

Sure its allowed. You can do that even with a single welder.

Regards.

DHURJATI SEN
 
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