ASTM Designation: A 615/A 615M·06a
This specification covers deformed and plain carbon steel concrete reinforcement bars in cut lengths or coils. Steel bars containing alloy additions, such as with the AISI and SAE series of alloy steels, are permitted if the resulting product meets all the other requirements of this specification.
The standard sizes and dimensions of deformed bars and their number designations shall be those listed in Table I [Table 2].
The text of this specification references notes and footnotes which provide explanatory material. These notes and footnotes ( excluding those in tables and figures) shall not be considered as requirements of this specification.
Bars are of three minimum yield strength levels: namely, 280 MPa [40000 psi], 420 MPa [60000 psi], and 520 MPa [75000 psi], designated as Grade 280 , Grade 420 , and Grade 520 , respectively.
Hot-rolled plain rounds, in sizes up to and including 63.5 mm [2 Yzin.] in diameter in coils or cut lengths, when specified for dowels, spirals, and structural ties or supports shall be furnished under this specification in Grade 280 , Grade 420 , and Grade 520  (Note 2).
For ductility properties ( elongation and bending), test provisions of the nearest smaller nominal diameter deformed bar size shall apply. Requirements providing for deformations and marking shall not be applicable.
Click below to download ASTM Designation: A 615/A 615M·06a pdf free
Click here to download AASHTOO Designation : M 30 -02 (2006) pdf free download