Just curious if anyone knows a good source for a filler metal guide.  I realize this is all spelled out in documents for us but I'd like a rule of thumb chart for the info.  Also I'd really like to get some more info on thickness qual's.  I notice sometimes the thickness is left out of the paperwork I get.  In other words I don't know really what thickness I can go to on a certain procedure without re-qualiing a weldor???  Some times I get that info. in my paper but sometimes I don't.  Thanks much folks.