ASME Section VIII Division 2 Alternative Rules for Pressure Vessel Construction: Design-by-Analysis Reference for High-Integrity Refinery, Petrochemical, and Nuclear Pressure Vessel Fabricators
ASME Section VIII Division 2 is the design-by-analysis alternative to Div 1, using detailed stress/fatigue/fracture analysis and tighter documentation to support ASME U2-stamp pressure vessels with 15–30% wall-thickness reduction for refinery, petrochemical, LNG, aerospace and SMR applications. Wuxi ABK welding automation—HGZ rotators, manipulators, positioners and digital-twin/machine-vision QA with calibrated parameter logging—supports Div 2 welding quality, 100% NDE, PWHT/toughness and U2-stamp documentation chains.