Model Number: ASTM A252 Key Specifications/Special Features: ASTM A252 grade 1, grade 2, grade3Materials and manufacture: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-lapProcess:Steel shall be made by one or more of the following processes: open-hearth, basic-oxygen or electric-furnaceChemical composition:Steel shall contain no more than 0.050% phosphorousWorkmanship, finish and appearance:
*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 accepted, it shall be permissible to establish the depth of such imperfections by grinding or filing

*Surface imperfections having 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 than3313 % of the specified nominal wall thickness to be repaired by welding, provided that the defect is completely removed prior to welding