We just got a contract to build some parts that are made for 5083-H323 Aluminum. We have never welded on this type of material. We are used to T6 6061 Alm. I would like to know what the biggest difference in welding this material is? Filler rod suggestions, shielding gas, difficulties, recomendations, experience, etc. I was thinking 5356 rod and 100% Argon. We will be using GTAW at the material is .125 thick. Any help would be useful. Thanks