This specification covers aluminum and aluminum-alloy drawn tube and pipe, of specified nominal composition and tempers, in straight lengths and tube in coils for general purpose applications. Coiled tubes are generally available only as round tubes with a prescribed wall thickness and only in non-heat-treatable alloys. The tube may be produced by drawing tube stock produced by extrusion through a bridge-type die or by die and mandrel methods. The ends of coils shall be crimped or otherwise sealed to avoid contamination during shipment. In addition to conformance with tensile requirements, coiled tube in the annealed temper only shall be capable of being expanded on a hardened ground tapered steel pin and shall be subject to inside cleanliness test.

1.1 This specification covers aluminum and aluminum-alloy drawn tube and drawnpipe in straight lengths and tube in coils for general purpose applications and climate control (HVAC) in the alloys (Note 2) and tempers shown in Tables 1-3. Coiled tubes are generally available only as round tubes with a wall thickness not exceeding 0.083 in. [2.00 mm] and only in non-heat-treatable alloys.

Note 1: For drawn seamless tubes, see Specification B210/B210M, for drawn seamless tubes to be used in condensers and heat exchangers, Specifications B234 and B234M, and for seamless pipe and tube, Specification B241/B241M. For extruded structural tube and pipe, see Specification B429/B429M.

Note 2: This specification’s use of the term alloy in the general sense includes aluminum as well as aluminum alloy.

1.2 Alloy and temper designations are in accordance with ANSI H35.1/H35.1M. The equivalent Unified Number System alloy designations are those of Table 4 preceded by A9, for example A91060 for aluminum 1060 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 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.