Originally Posted by PuppiesBalls
have to work out 0.1 % proof stress, anyone know how to doit?
tryed google but no luck
Not quite sure where you're going with this, but you could start with A.S.M.E / A.S.T.M if that's the sort of test you are after and google that in...
..MMmmm.. after a bit of Googling ASME use .2%.