Welding of superalloy furnace tubes HP40Nb
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This post was last edited by The wise are not confused on 2009-12-26 at 12:18, regarding the on-site welding of HP40Nb superalloy furnace tubes in work. Since I had no prior experience with this type of material, I researched relevant information, conducted welding process evaluations, developed appropriate process measures, and supervised their strict implementation on site, ultimately ensuring that 100% of the welds met the quality standards. I hope those who work with this material or are interested in it can exchange experiences and share insights together.
I haven’t come into contact with it yet. Could you send over the manufacturing process for sharing? study*
For details, see Metal Processing – Heat Treatment, Issue 8, 2009: “Research and Application of Welding Techniques for HP40Nb Superalloy Furnace Tubes in Ethylbenzene Plants”; an electronic version is available online
Upstairs, it requires payment to download and open it. Is there any other way to view it? Thank you
20.70.Nb nickel-based welding wire is used for root welding by manual TIG welding, while two types of 25-35Nb welding wires are used for fill and cap welding. Where possible, use a lower welding heat input to meet the usage requirements, in order to avoid excessive heating of the heat-affected zone and the weld seam.
Are they furnace tubes made by die casting? Superalloys generally require vacuum melting!
Metal Processing – Heat Treatment, Issue 8, 2009: “Research and Application of Welding Techniques for HP40Nb Superalloy Furnace Tubes in Ethylbenzene Plants”. An electronic version of the magazine is available online. It can be viewed
You can also contact me if needed; I have the electronic version