2¼Cr-1Mo steels have been used in power and chemical plants for elevated temperature high pressure components since the 1930s. Recent concerns involving the service of submerged arc (SA) welded steam piping has resulted in the inception of this study. Because welded piping may be either annealed and tempered (A and T), normalized and tempered (N and T) or subcritically postweld heat treated (PWHT), the aim of this study was the determination of the elevated temperature properties of 2 ¼ Cr - 1Mo weldments subjected to these heat treatments after welding.