Failure investigation on rear water wall tube of boiler

• Main Authors: Ahmad J., Purbolaksono J., Beng L.C., Rashid A.Z., Khinani A., Ali A.A.
• Other Authors: 57210531371
• Format: Article
• Published: 2023
• Subjects: Failure analysis; Fly-ash; Rear water wall tube; Visual inspection; Wall thinning; Boilers; Creep; Inspection; Microscopic examination; Quality assurance; Safety factor; Thickness gages; Thickness measurement; Tubes (components); Visual communication; Water analysis; Creep analysis; Failure investigation; Failure mechanism; Root cause; Thermally activated process; Water wall tubes
• Institution: Universiti Tenaga Nasional

This paper presents failure investigation on the SA210-A1 rear water wall tube by visual site inspection, tube wall thickness measurements and microscopic examination. The rear water wall tube has failed with wide open burst and was situated at the boiler nose lower bent region. On-site wall thickne...