Multiple simulated defects were machined into 6in Sch. 40, ASTM 106 Gr. B pipe (3 nos. defects per spool, 4 nos. spools). Each defect measured approx. 50mm x 52mm length x 4mm deep (equivalent to a 60% wall thickness loss). Following application of StrongBack repair systems, spools were hydrotested to 180 bar.
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