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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.Hot Tags: astm a252 square and rectanguler steel pipe, pipe pile, hollow section pile, steel box profile, structural steel pipe, a252 gr3 steel pipe pile, China, manufacturers, suppliers, factory, company, exporter, seller, brands, import, buy, best, high-quality