ASTM A615 steel bars specification covers deformed and plain carbon-steel bars for concrete reinforcements in cut lengths and coils. Materials considered under the ASTM A615 steel bars specification are available in Grades 40 , 60  and 75 . Plain bars, in sizes up to and including 2.5 in. [63.5 mm] in diameter in coils or cut lengths shall be furnished under the ASTM A615 steel bars specification in Grade 40 , Grade 60 , Grade 75 , and Grade 80 . The standard sizes and dimensions of deformed bars and their number designations are given in the ASTM A615 steel bars specification. The text of the ASTM A615 steel bars specification references notes and footnotes which provide explanatory material. ASTM A615 steel bars specification is applicable for bars in either inch-pound units (as Specification A615) or in SI units (as Specification A615M).
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