Customer has some stone and precast panels on the exterior of their building and wants us to to weld some 304 SS L6x4x3/4's and Plate to a galvanized frame built out of heavy channel shapes.
Any advice on this?
I checked with the AGA and they don't recommend mixing SS with anything that has been galvanized and for good reason(LMC). I'm nervous about tackling this due to the heavy stone and precast that will be hanging across the front of the entrance to this building.
1)Contamination of the SS with CS is a given, everything we have toolwise has seen CS everyday of it's life. This L6x4 has to be purchased as a L8x4 and cut down to a L6x4.
2)Grinding the galvanizing off the CS in the areas to have the SS welding concerns me as you can never get 100% of the galvanizing off.
3)Thirdly, my welder's are not checked out for respirator use.
I don't like how this is shaping up, but I've got to deal with it in the best manner possible. I've got to have a little talk with our sales folks and get them to let me know ahead of time when they are going to place me in these types of situations so I can get prepared way ahead of the material hitting the shop floor and a shipping deadline looming over my head.