Hi; I am new to the QA/QC business. I was ask to look at a job which would consist of welding alloy 800/H. The procedure inwhich the petrochem wants us to follow calls to weld with electrode UTP 2133 Mn. with PWHT. I know the p# of the material is 45 but can not find anything on this tig wire. And why would they want to PWHT this alloy 800/H is it not part of the inco family. x(

Dear Mr. Srinivasan, UTP 2133 Mn must be the welding consumable for Alloy 800H with matching chemical composition. 21 and 33 must be referring to Chromium and Nickel contents. Regards, Kochappan.

Mentioned in the e-mail above, E/ERNiCrCoMo-3 should be E/ERNiCrCoMo-1. Scott123 >> Hi; I am new to the QA/QC business. I was ask to look at a >>job which would consist of welding alloy 800/H. The >>procedure inwhich the petrochem wants us to follow calls to >>weld with electrode UTP 2133 Mn. with PWHT. I know the p# >>of the material is 45 but can not find anything on this tig >>wire. And why would they want to PWHT this alloy 800/H is >>it not part of the inco family. x( > >Welding alloy 800H to alloy 800H depending on service >temperature I would use E/ERNiCrMo-3 (service temp upto >1000F) or E/ERNiCrCoMo-3 (service temp from 1400-2100F). For >joining alloy 800H to another alloy I would use E/ERNiCrMo-3 >or E/ERNiCr-3; assuming you are using American construction >codes. > >The electrode you mentioned is maybe a trade name. Look at >the "F" number in most codes that would be an esential >variable for procedure qualification. You are probably >looking for a F43 filler material. > >Possible PWHT is being done to defend agaisnt SCC. Soultion >annealing is done prior to welding if you are welding to age >harden material. > >If you have more info on the welding electrode you mentioned >let me know I am interested! > >Good luck > >Scott