ASTM B 221

1.1 This specification covers aluminum and aluminum-alloy extruded bars, rods, wire, profiles, and tubes in the aluminum alloys (Note 1) and tempers shown in Table 2. Note 1 -Throughout this specification, the use of the term alloy in the general sense includes aluminum as well as aluminum alloy. Note 2 -For rolled or cold-finished bar and rod refer to Specification B211 , for drawn seamless tube used in pressure applications, Specification B210 , for structural pipe and tube, Specification B429/B429M , and for seamless pipe and tube used in pressure applications, Specification B241/B241M . Note 3 -Structural pipe and tube produced in accordance with B221 is not intended for fluid-carrying applications involving pressure. Refer to either Specification B210 or B241/B241M , as appropriate, for seamless pipe and tube used in fluid-carrying applications involving pressure. 1.2 Alloy and temper designations are in accordance with ANSI H35.1/H35.1M. The equivalent Unified Numbering System alloy designations are those of Table 1 preceded by A9; for example, A91100 for Aluminum 1100 in accordance with Practice E527 . 1.3 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2. 1.4 A complete metric companion to B221 has been developed B221M; therefore, no metric equivalents are presented in this specification. TABLE 1 Chemical Composition Limits A <(hoch),> B <(hoch),> C Note -In case of a discrepancy between the values listed in Table 2 and those listed in the " International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys " (known as the " Teal Sheets " ), the composition limits registered with the Aluminum Association and published in the " Teal Sheets " should be considered the controlling composition. The " Teal Sheets " are available at http://www.aluminum.org/tealsheets. Alloy Silicon Iron Copper Manga- nese Magne ....(abbreviated)