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This is for a co-worker, so I don't know all of the details, but could anybody tell me the process and filler metal to use to weld F5A M P-5B TO 316 P8?Hopefully I got that right.Anyway, any help would be appreciated.My Babies:MillerMatic 185Thermal Arc 300SHobart StickMate AC/DC 235/160Dalex Werke Spot WelderOh and the wife and kids are important too!
Reply:Use Inco 82 or 309 ss.. Preheat base metal to 225-250 deg F. After completing the welds wrap with KAO wool and allow to cool slowly. This due to the P5 material.
Reply:Inconel 718- but you have to remember - that to get the rod to burn, you will probably have to bake it in a oven and it will probably demand a high amount of amps.Pre and post heat is essential - to get it to not crack.http://www.hightempmetals.com/techda...nel718data.phpI wouldn't be surprised to find out that the rods might cost $20 each!
Reply:The P5B side is typically buttered with an F43 electrode such as ENiCrFe-2 or -3 with SMAW, or ERNiCr-3 with GTAW, postweld heat treated @ 1400 + - 25°F, and then the two pieces are welded together using the same fillers. Preheat should be around 400°F.
Reply:We butter the P5-B with inconel 625 (NiCR-3). Build up of 625 no less than 3/16" thick. Preheat of 400 deg F with an interpass of 600 deg F. Then PWHT the P5-B @ 1325 deg F. Then join the P5-B to the P8 with inconel 625. No further PWHT is required.Last edited by davinwheel; 07-15-2010 at 10:08 PM. |
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发表于 2021-9-1 00:30:02