ASTM B221-21

ASTM B221-21 - 1.9.2021

1. Scope

1.1?This specification2 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/B211M, for drawn seamless tube used in pressure applications, Specification B210/B210M, for structural pipe and tube, Specification B429/B429M, and for seamless pipe and tube used in pressure applications, Specification B241/B241M.

Note 3:?Pipe and tube products listed in this specification are intended for general purpose applications. This specification may not address the manufacturing processes, integrity testing, and verification required for fluid-carrying applications involving pressure. See Specifications B210/B210M or B241/B241M, or both as appropriate, for seamless pipe and tube used in fluid-carrying applications involving pressure. See Specification B234, as appropriate, for use in surface condensers, evaporators, and heat exchangers.

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 Specification B221 has been developedSpecification B221M; therefore, no metric equivalents are presented in this specification.

1.5?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.

2. Referenced Documents

G34-23	Standard Test Method for Exfoliation Corrosion Susceptibility in 2XXX and 7XXX Series Aluminum Alloys (EXCO Test)
G47-22	Standard Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy Products
E1251-17a	Standard Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry (Includes all amendments and changes 10/26/2017).
B807/B807M-20	Standard Practice for Extrusion Press Solution Heat Treatment for Aluminum Alloys
B881-17	Standard Terminology Relating to Aluminum- and Magnesium-Alloy Products
B918-01	Standard Practice for Heat Treatment of Wrought Aluminum Alloys
B945-21	Standard Practice for Aluminum Alloy Extrusions Press Cooled from an Elevated Temperature Shaping Process for Production of T1, T2, T5 and T10-Type Tempers
E1004-23	Standard Test Method for Determining Electrical Conductivity Using the Electromagnetic (Eddy Current) Method
E716-16(2021)e2	Standard Practices for Sampling and Sample Preparation of Aluminum and Aluminum Alloys for Determination of Chemical Composition by Spark Atomic Emission Spectrometry (Includes all amendments and changes 9/7/2022).
B666/B666M-20	Standard Practice for Identification Marking of Aluminum and Magnesium Products
B660-23	Standard Practices for Packaging/Packing of Aluminum and Magnesium Products
B594-19e1	Standard Practice for Ultrasonic Inspection of Aluminum-Alloy Wrought Products (Includes all amendments and changes 4/14/2021).
B557-15(2023)	Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products
B429/B429M-20	Standard Specification for Aluminum-Alloy Extruded Structural Pipe and Tube
B241/B241M-22	Standard Specification for Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube
B234-17	Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes for Surface Condensers, Evaporators, and Heat Exchangers
B211-12	Standard Specification for Aluminum and Aluminum-Alloy Rolled or Cold Finished Bar, Rod, and Wire
B210-12	Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes
E607-02	Standard Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique Nitrogen Atmosphere
E527-23	Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E34-11	Standard Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications