stainless filler choice question

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I've never come across a chart for selecting filler and I sure would like to have a link to one. My specific question is for a tooling project. I need to weld handles onto a splined tool and both parts are made from 17-4 stainless steel. We've talked about heat treating it to a T-800 hardness and if that happens would it require different filler? I've got plenty of 308 and 316 lying around and if that will work great but it needs to be right so I'm not opposed to buying a box of the ideal choice. Any concise answers are greatly appreciated.
Reply:Use 308.....zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Originally Posted by zapsterUse 308.....zap!
Reply:Years of welding....zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:If you'll do a search for the below,Lincoln stainless steel Properties – How To Weld Them – Where To Use Themyou'll find a 40 page pdf document that can help you,with the pre and post weld heat treating/condition and filler selection,which is more definitive than the response you've had to date.Blackbird
Reply:That's right!Why should we tell all the answers?...zap!I am not completely insane..Some parts are missing Professional Driver on a closed course....Do not attempt.Just because I'm a  dumbass don't mean that you can be too.So DON'T try any of this **** l do at home.
Reply:Originally Posted by zapsterYears of welding....zap!
Reply:Originally Posted by zapsterYears of welding....zap!
Reply:So You verified that the answer he gave was correct but yet questioned his experience and advise, to only go and find out it was correct and only saw oh btw it was correct.  Shesh I would think that more than that would be due.
Reply:The working part of the tool gets heat treated.  The handle probably doesn't matter.  If there is ever any question, my standby is 309L.  It works with many alloys, austenitic, martensitic, and even non-stainless.
Reply:on 17-4 to 17-4 joints we use 17-4 filler  " 630 "The reason being Mil-Spec and NAVSEA require it to be used for those joints on the stuff we work onMiller Xmt 350Lincoln Ln-25Ahp 200xSmith Gas Mixer AR/HTig is my Kung FuThrowing down dimes and weaving aboutInstagram http://instagram.com/[email protected]
Reply:Originally Posted by quasiI've never come across a chart for selecting filler and I sure would like to have a link to one. My specific question is for a tooling project. I need to weld handles onto a splined tool and both parts are made from 17-4 stainless steel. We've talked about heat treating it to a T-800 hardness and if that happens would it require different filler? I've got plenty of 308 and 316 lying around and if that will work great but it needs to be right so I'm not opposed to buying a box of the ideal choice. Any concise answers are greatly appreciated.
Reply:308 will be fine if you do not need any of the 17-4 base metals properties in the weld zone like being heat treatable the 630 on the other hand is heat treatable like the 17-4 base metal isMiller Xmt 350Lincoln Ln-25Ahp 200xSmith Gas Mixer AR/HTig is my Kung FuThrowing down dimes and weaving aboutInstagram http://instagram.com/[email protected]
Reply:Mostly already covered, but the answer is pretty much ...It depends.It depends on how much base alloy pickup you get into the weld bead, based on the number of passes and slightly on the actual welding process being used (because not all fillers/electrodes are available in all 'processes').It depends on whether you need to develop material properties after welding that 'match' the original material properties, which also depends on possible post-weld heat-treatment.  Those first two 'it depends' criteria interact in the filler selection choice(s).It depends on just how much 'strength' is needed in the welded joint, and how you are going to get that needed/desired 'strength' in the joint ('stronger' filler or 'more' filler).So, it all depends.  As you saw in the Lincoln reference (C64000), several filler choices for welding 17-4 PH stainless steel include 308, 309, 309-Cb, AMS5827B (SMAW), AMS5826 (bare wire filler), and A630.  Or even the nickel or nickel alloy  fillers.So, it all depends.  Don't use an old metal coat hanger for filler though.  Save those for welding body panels together with oxy-acetylene on old-skool rat-rods.    The best laid schemes ... Gang oft agley ...
Reply:Originally Posted by zapsterYears of welding.
Reply:...and we help why?
Reply:After I saw a guy with "40 years experience welding" make one of the biggest messes I have ever seen out of a rollercoaster track repair job, the whole experience thing means less than nothing to me now. I know zap is a great welder and I know he doesn't cut corners in his work, it's nothing against him... but to me the whole 'trust me I've been welding for 300 years' thing is not an acceptable answer, especially when someone is asking for technical reasons of why.Welding/Fab Pics: www.UtahWeld.com
Reply:Originally Posted by Ron PadillaSo You verified that the answer he gave was correct but yet questioned his experience and advise, to only go and find out it was correct and only saw oh btw it was correct.  Shesh I would think that more than that would be due.