ASTM A252 standard specification for welded steel pipe piles.
This specification covers nominal wall cylindrical structural steel pipe piles in which the steel cylinder acts as a permanent load-carrying member or as a shell to form cast-in-place concrete piles. Each welded pile shall be made by seamless, electric resistance welding, flash welding or fusion welding with longitudinal, helical-butt, or helical-lap seams.
Applications: the steel cylinder acts as a permanent load carrying member or as a shell to form cast–in–place concrete welded steel pipe piles.
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