I have a boiler repair that will consist of replacing a section of 2"OD x .201"MW T23 tube with a section of T91 tube. There is a T23/T91 dissimilar weld line just below the repair area and there is no T23 tube stock on-hand but have the T91. I am planning to utilize the NBIC weld method 6 for...
I am looking at a project that will involve welding new a 304ss (P8) vessel to a existing s32101 duplex (p10H) vessel in a paper mill flue gas scrubber system. I am looking for advice on process and choice of filler metal for GTAW, GMAW, and/or FCAW applications, I have seen recommendations on...
We are looking at a project that involves welding of super alloy 304H. I am having issues finding any information on the the material at all much less what to weld it with. 2015 ASME Sec. IX list a UNS # S30432 that has the appropriate chemical composition of 18Cr 9Ni 3Cu Cb N (at least that is...
My company is being asked by a client to weld SA213-T23 to a SA213-T12 boiler wall tubes, using a temperbead welding procedure to eliminate any carbon migration issues caused by PWHT. In all the research I've read, I can find no recent information supporting any welding T23 material without...
I am working on a SA335-P22 header that is 4" thick. We are welding with E9018-B3 and are going to perform post weld heat treatment, my client is requesting the use of a 550 deg F preheat, the interpass temperature on my welding procedure is also 550 deg F. My question is where can I find, or...
I am in the fossil fuel power generation industry. When welding chrome-moly alloys of different composition, I have always suggested the use of the higher of the two for the filler metal (ex. welding T22 to T9 with ER80S-B8 or E 8018-B8). Recently some clients are requesting the us to use the...
