AWS NDE Coordination case studies
AWS NDE Coordination · Put your knowledge to work in context.
The Nondestructive Examination Coordination endorsement is listed by the American Welding Society (AWS) as one of the CWI and SCWI Endorsements - add-on credentials available to individuals who already hold the Certified Welding Inspector (CWI) or Senior Certified Welding Inspector (SCWI) credential. It sits alongside endorsements such as Structural Steel (D1.1), Bridge Welding (D1.5), Pipeline (API 1104), Magnetic Particle Testing, Penetrant Testing (PT), ISO Standard Endorsement, Welding Coordination and QA, Welder Performance Qualifier (WPQ1), and Welding Procedure Qualifier (WPQ2). The AWS NDE Coordination case studies are 5 cases and about 4,092 words.
1Discontinuity Indications After Re-Radiography of a Restrained Butt Weld
A 25 mm thick carbon steel pipe butt weld (single-V, GTAW root plus SMAW fill/cap) is radiographed after a repair of a 40 mm arc strike on the cap. The first film showed only the repaired area.
1,039 words, about 5 min2Welder Qualification Lapse Discovered During Production Auditing
During a routine audit of a fabrication shop, the welding coordinator finds that a welder's qualification for a 6G position on 8 mm stainless steel pipe expired 11 days ago. In those 11 days the welder completed 14 girth welds on a stainless process line.
827 words, about 4 min3Hydrogen Cracking Risk on a Thick-Section Repair at Low Ambient Temperature
A 50 mm thick low-alloy steel vessel nozzle weld requires repair of a 60 mm slag inclusion found by UT. The repair will be done by SMAW with a matching consumable.
850 words, about 4 min4Conflicting Acceptance Criteria Between Drawing and Client Specification
A pressure piping spool is being inspected to a client specification that references a national code for acceptance. The fabrication drawing note states 'all welds 100% radiographed, acceptance per code.' The client specification adds a clause requiring 'no incomplete penetration permitted in root passes.' The welder produced a root with slight incomplete penetration (about 1.5 mm) on two of eight girth welds.
582 words, about 3 min5NDE Coverage Gap When a Weld Is Coated Before Final Inspection
A shop fabricates a carbon steel structural skid with 22 fillet welds and 6 full-penetration groove welds. The inspection plan requires visual inspection of all welds and MT of the groove welds before coating.
794 words, about 4 min