EN 1993-4-2 is not a beginner’s code. It demands fluency in shell buckling, fluid statics, and Eurocode interaction. However, for the steel tank engineer, it is an indispensable tool. It balances safety (with rigorous imperfection models) with economy (allowing thinner shells than older national codes like BS 2654 or DIN 4119).
The standard generally prescribes ductile steels conforming to EN 10025. Common grades include S235, S275, and S355. The choice of steel depends on the thickness of the plates and the service temperature. Because tanks are often located outdoors and store large volumes, brittle fracture is a significant concern. Eurocode 3 Design Of Steel Structures Part 4 2 Tanks
The Eurocode applies partial safety factors to both loads (γG, γQ) and material properties (γM) to account for uncertainties. This probabilistic approach ensures a consistent level of safety across different types of tank designs. EN 1993-4-2 is not a beginner’s code
: Guidance on modeling shell structures, including cylindrical shells and transitions. Limit States It balances safety (with rigorous imperfection models) with