Ratcheting studies were carried out on SA 312 Type 304LN stainless steel straight pipes and elbows of 168 mm outer diameter under internal pressure and cyclic bending load. The internal pressure was varied between 25 MPa and 45 MPa in the case of straight pipes and 27.6 MPa and 39.2 MPa in the case of elbows. The specimens were filled with water and pressurized. Cyclic bending load was applied on the specimens by subjecting them to different levels of load-line displacement. The specimens have undergone significant ratchet swelling (ballooning), ovalization and consequent thinning of the cross-section during ratcheting. The straight pipes failed either by occurrence of through-wall crack accompanied by simultaneous ballooning or bursting with simultaneous ballooning. All the elbows failed by occurrence of through-wall crack accompanied by simultaneous ballooning. The ballooning in straight pipes was found to be varying from 13.4% to 19.0% with respect to the original diameter in the gauge length portion. In the case of elbows, the ballooning was found to be varying from 3.8% to 5.8%. The percentage reduction in thickness varied from 6.0% to 16.3%. Relatively, ratcheting was found to be more pronounced in straight pipes in comparison to elbows.