Beginners Welding Question

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Hi guys, great site. Just looking to get a bit of help on a welding question, which being an electrical engineer myself am unable to answer.Attached are two drawings which show weld details of two plates of a steel structure, which is part of a mast holding up a conveyor system discharging cargo at 1200t/hr. On inspection I have found that the weld is not as per design. The manufacturer does not want to repair the weld and bring it back to specification as per design as it could cause distortion in other parts, but change it as shown in the second drawing.Would I be able to get some opinions on the legitimacy of such a solution? Would the strength be less (80% 90%?)?  Any disadvantages?Thanks for any help I can get, much appreciated.
Reply:If the spec calls for 8mm fillet both sides, you cannot just double up to 16mm on one side, No..  Buy American, or don't whine when you end up on the bread line.
Reply:Without seeing the entire piece I would have thought the original weld spec would have less distortion. They would have tended to balance out.Leo
Reply:I agree that it can't be determined if a reinforced weld on one side equals the design purpose???I'm not sure WHAT to tell you about a builder that offers an alternative solution to his original omission. I'd be thinking "what else is missing" about now.Matt
Reply:That is a big NO GO. the metal will warp a lot more in the second weld design than the original. then again Im not sure I have seen many joint designs like the first joint in the AWS code book. I wouldnt have beveled the T joint at all there is no point (but depending on material and a few other variables I can maybe understand why they have a double beveled T joint????) a picture of the actual pieces would help us more to determine what would be the best fix.Ryan
Reply:This is why they pay engineers the big money.Quite often, unless you are building a performance car or plane etc. everything is about 20x stronger than actually needed.  Have an engineer model the loads the system with an appropriate margin of safety and have that engineer tell you how strong the welds have to be.Is that joint supposed to handle 1200 tones?  Or more like 1 ton?  What about fatigue strength, vibration etc.?  All questions we can't answer.What we can say is that welding on one side of a joint makes for a different characteristics vs. the original design.  Whether that is good enough for this application - who knows?Con Fuse!Miller Dynasty 350Millermatic 350P-Spoolmatic 30AMiller Multimatic 200Hypertherm PowerMax 1000G3Miller Maxstar 200DX
Reply:some of this comes down to warranty. the mfr is giving the warranty and has some rights in  this.. but you have the right to require him to submit his calculations etc for review by your engineer..and possibly make him pay for that engineering review...and if that flies you can also withold payment until satisfied that the thing works...
Reply:Thanks for the help guys, much appreciated. Still slightly confused, but I'll keep you updated on what the end result was.