Abstract
The use of higher steam temperatures in central-station generating plants has required the manufacturer of power-boiler equipment to use austenitic chromium-nickel steels for the outlet sections of the superheater where metal temperatures are in the order of 1200–1250 F. Since these tubular materials must be fabricated by welding, The Babcock & Wilcox Company has been conducting a test program on the high-temperature strength of chromium-nickel stainless-steel welded joints. The first work to be completed is data on the strength of all-weld-metal coupons of eleven compositions of commercial stainless-steel weld deposits. It is hoped that the data in this report, together with those presented in subsequent discussion by other industrial organizations, will serve as a guide to the Subcommittee on Stress Allowances for Ferrous Materials of the ASME Boiler Code Committee in the selection of allowable stresses for the chromium-nickel stainless steels.
