My company is specing out a tubular roll cage where the wall thickness of the tubes is 0.095". Am wondering what spec to use, D1.1 or D1.3, or how to relate the two specs together in our drawing notes. Any help would be appreciated. Thanks
Any of AWS' codes can be used whenever the owner or the manufacturer feels they are appropriate. It is only when the code has been incorporated into a legal statue or contract that one is obligated to meet the code that is referenced.
If one feels D1.1 is appropriate, even if it falls outside the thickness, alloy type, etc., it can be specified by the owner or used by the manufacturer.
One could adopt API 1104 if they chose to.
Al