scope:

This specification covers aluminum and aluminum-alloy flat sheet, coiled sheet, and plate, in the alloys (Note 1) and tempers shown in Tables 2 and 3, and in the following finishes:

Plate in all alloys and sheet in heat-treatable alloys: mill finish.

Sheet in nonheat-treatable alloys: mill finish, one-side bright mill finish, standard one-side bright finish, and standard two-sides bright finish.

NOTE 1 - Throughout this specification use of the term alloy in the general sense includes aluminum as well as aluminum alloy.

NOTE 2 - See Specification B 632/B 632M for Tread Plate.

Alloy and temper designations are in accordance with ANSI H35.1. 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 E 527.

A complete metric companion to Specification B 209 has been developed - B 209M; therefore, no metric equivalents are presented in this specification.

For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A2.