

If you have further questions please contact us directly or start a discussion in ourĪSME Code Forum. 3 (single welded butt joint without backing strip), 4, 5, 6 (full fillet lap joints) or 8 (angle joints larger 30°) Seamless vessel sections and heads: E = 1, except adjacent category B or C butt welds do not meet spot requirements according to UW-11(a)(5)(b) or are Type No. No radiographic examination (RT): E = 0,7įull RT: E = 1, except adjacent category B or C butt welds do not meet spot requirements according to UW-11(a)(5)(b) and are not type 1 or 2 welds (half-apex angle is equal or less than 30 deg) – in this case E = 0.85 Brief instructions for the determination of the correct efficiency factor are available in our ASME Code Tutorials (German). The correct efficiency factor E for longitudinal seams (Category A) are determined according to paragraph UW-12. For pressure bearing components which are to meet the ASME Code requirements, only these allowable stress values or those from approved Code Cases are permitted. The allowable stresses are listed in the ASME Code Section II, Part D. Corrosion allowances (and tolerances) have to be added to the results. It must be noted, however, that formulas I and II from UG-27 and Appendix 1-1 (Supplementary Design Formulas) can only be applied for thin walled cylinders, while formulas III and IV are applicable for both thin and thick walled cylinders.Īs is usual with all ASME Code formulas, the dimensions used have to be considered for the corroded condition. It´s up to the user to select the formula. The results slightly differ depending on the formula used.

Q14: ASME NQA-1 - Nuclear Quality Assurance.Q13: ASME Code Section III – Nuclear Codes.Q12: ASME BVP Code, Section VIII, Division 2 - Alternative Rules.Q11: ASME Code Section VIII, Division 1 Workshop - Design Calculation of Pressure Vessels.Q5: Material Requirements of the ASME BVP Code.

Q4: ASME Code Section V - NDE Procedures and Personnel.M8: ASME Code VIII-1 Berechnungsworkhop.M5: ASME Code Section VIII, Division 1 - Druckbehälter.M1: Workshop - Das ASME Joint Review sicher bestehen.
