SCWI case studies
SCWI · Put your knowledge to work in context.
The Senior Certified Welding Inspector (SCWI) is described by AWS as its highest level of certification and as recognized industry-wide. It is built for experienced Certified Welding Inspectors who want to demonstrate a deeper command of advanced nondestructive examination topics, quality systems, procedure qualification, and related areas of expertise. The route to the credential has changed: there is no longer a standalone SCWI exam. AWS states that the standalone SCWI exam is retired and that candidates now qualify step by step by completing four required endorsements - Welder Performance Qualifier (WPQ1), Welding Procedure Qualifier (WPQ2), Welding Coordination and QA (WCQA), and Nondestructive Examination Coordination (NDEC). The SCWI case studies are 5 cases and about 3,501 words.
1The FCAW Supervisor Says the Ticket Expired
Your shop fabricates to AWS D1.1. The welder qualification register shows M.
651 words, about 3 min2Reusing a PQR for a Tougher Job
PQR-118: FCAW-G, 1 in A36 plate, 3G, 0.045 in E70T-1 with 100% CO2, six passes, measured heat input 42 kJ/in (carried as the WPS maximum), no Charpy testing. A new contract calls for 3/4 in A572 Gr 50 CJP groove welds in tension members, and the specification requires Charpy V-notch testing at 0 deg F with 20 ft-lb minimum for all groove welds in material 1/2 in and thicker.
716 words, about 4 min3Four Findings on the Same Joint
Production is 1 in A572 Gr 50 with E7018. The WPS requires 200 deg F minimum preheat and 450 deg F maximum interpass.
783 words, about 4 min4The Indication That Was Signed Off
CJP T-joints (web to flange) in 1 in A572 Gr 50, AWS D1.1, requiring 100% UT for tension members. The NDT subcontractor's report shows shear-wave UT from the flange face.
652 words, about 3 min5Fourteen Welds With the Wrong Stamp
During a records audit you find 14 welds stamped 'TW-07' with June dates. The qualification register shows TW-07 (T.
699 words, about 3 min