ASTM B221M-05

ASTM B221M-05 - 1.6.2005

1. Scope

1.1 This specification covers aluminum and aluminum-alloy extruded bar, rod, wire, profile, and tube in the aluminum alloys (Note 1) and tempers shown in Table 2.

—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 bars and rods refer to Specification B 211M, for drawn tube, Specification B 210M, for structural pipe and tube, Specification B 429M, and for seamless pipe and tube, Specification B 241/B 241M.

1.2 Alloy and temper designations are in accordance with ANSI H35.1M. The equivalent Unified Numbering System alloy designations are those of preceded by A9, for example, A91100 for Aluminum 1100 in accordance with Practice E 527.

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

1.4 This specification is the metric counterpart of Specification B 221.

1.5 The values stated in SI are to be regarded as standard. No other units of measurement are included in this specification.

2. Referenced Documents

B881-25a	Standard Terminology Relating to Aluminum- and Magnesium-Alloy Products (Includes all amendments and changes 1/8/2026).
B211M-12	Standard Specification for Aluminum and Aluminum-Alloy Rolled or Cold-Finished Bar, Rod, and Wire (Metric)
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
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E34-11	Standard Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys
E527-23	Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
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).
B807/B807M-20	Standard Practice for Extrusion Press Solution Heat Treatment for Aluminum Alloys
B666/B666M-20	Standard Practice for Identification Marking of Aluminum and Magnesium Products
E607-02	Standard Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique Nitrogen Atmosphere
E1004-23	Standard Test Method for Determining Electrical Conductivity Using the Electromagnetic (Eddy Current) Method
G47-26	Standard Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy Products
G34-23	Standard Test Method for Exfoliation Corrosion Susceptibility in 2XXX and 7XXX Series Aluminum Alloys (EXCO Test)
E1251-25	Standard Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry
B210M-12	Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes (Metric) (Withdrawn 2019)
B660-23	Standard Practices for Packaging/Packing of Aluminum and Magnesium Products
B594-19(2025)	Standard Practice for Ultrasonic Inspection of Aluminum-Alloy Wrought Products
B557M-15(2023)	Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products (Metric)
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
B918-01	Standard Practice for Heat Treatment of Wrought Aluminum Alloys