ASTM A252 Overhead Sign Structure
ASTM A252 Overhead Sign Structure
(OP)
We have specified a API 5L - X46 for a cantilevered sign structure. Our manufactures say they can only find a ASTM A252 - Grade 3 in the size we required. I can't seem to find any reason why we wouldn't allow this substitution. Looking if anyone has had experience with this before?





