Model Number: A500/A500M-10a Key Specifications/Special Features: Key specifications/special features:A500/A500m grade A, grade B, grade CMaterials and manufacture:This standard covers cold welding, seamless carbon steel, round tubes, square tubes, tubes or tubes of special shape, welding, riveting, or bolt structures for bridges and structures, and tubes for general constructionProcess: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% phosphorous
Workmanship, finish and appearance:
*Finish 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 than 3313 % of the specified nominal wall thickness to be repaired by welding, provided that the defect is completely removed prior to welding