WELDING 2-1/4% Cr - 1% Mo STEEL TUBES TO 2-1/4% Cr - 1% Mo STEEL TUBESHEETS Sodium Components Design Project Research and Development Program—Final Report

摘要

The investigation reported herein presents the results of a program whose aim was the development of a reliable and reproducible procedure for welding tubes to tubesheets comprised of 2-1/4％ Cr - 1％ Mo steel.nOf the three basic types of welding processes evaluated, the inert-gas shielded tungsten-arc (non-consumable electrode) process proved to be the most applicable for welding these tubes to tubesheets. Compared to the inert-gas shielded metal-arc and manual metal-arc processes, the superior applicability of the inert-gas shielded tungsten-arc process was evident by the readily obtainable reproducibility as regards uniformity and weld quality, as well as greater operator appeal due to the more easily controlled weld puddle.