This standard is issued under the fixed designation A 595; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon ( ュ) indicates an editorial change since the last revision or reapproval.

1.Scope

1.1 This specification covers three grades of seam-welded, round, tapered steel tubes for structural use. Grades A and b are of low-carbon steel composition and Grade C is of weather-resistant steel composition.
1.2 This tubing is produced in welded sizes in range of diameters from 2 1/2 to 30 in. (63.5 to 762.0 mm) inclusive.Wall thicknesses range from 0.1046 to 0.375 in. (2.66 to 9.53 mm). tapers are subject to agreement with the manufacturer.
1.3 The values stated in inch-pound units are to be regarded as the standard.