I will make air coolers by myself U-stamp). In the coolers are finned tubes of aluminium. The tube material and all pressure containing parts etc will be placed an ordered according to ASME (SA), further no problem. But is this also necessary for the Fins? This is aluminium what is fixed on the...
When I have an accumulator design ASME with a design temperature -39/+80°C is it than necessary to do impact testing on -40°C or is impact testing on -20° enough or is impact testing anyhow required? (and where can I find it?)
The material is 34CrMo4 (SA372GR.E CL70).
I hope anybody can give me...