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ASTM A252 Grade 1 Grade2 Grade3
Materials and Manufacture:
The piles shall be made by the seamless,electric resistance welded,flash welded or fusion welded process, the seams of welded pipe piles shall be longitudinal ,helical-butt,or helical-lap.
The steel shall be made by one or more of the following processses:open-hearth,basic-oxygen or electric-furnace.
The steel shall contain no more than 0.050% phosphorous.
Workmanship, Finish, and Appearance:
*The finished pipe piles shall be reasonably straight and shall not contain imperfections in such number or of such
character as to render the pipe unsuitable for pipe piles.
*Surface imperfections having a depth not in excess of 25 % of the specified nominal wall thickness shall be acceptable.It shall be permissible to establish the depth of such imperfections by grinding or filing.
*Surface imperfections having a depth in excess of 25 %of the specified nominal wall thickness shall be considered to
be defects. It shall be permissible for defects not deeper than331⁄3 % of the specified nominal wall thickness to be repaired
by welding, provided that the defect is completely removed prior to welding.