ASTM B179-18 - 15.5.2018
 
1. Scope

1.1 This specification covers commercial aluminum alloys in ingot form for remelting and molten form for the manufacture of castings. The specific gravity of these alloys does not exceed 3.0 and they are designated as shown in Table 1.

Note 1: Throughout this specification the use of “ingot” in a general sense includes sow, T-bar, T-ingot, and pig.

1.2 Alloy designations are in accordance with ANSI H35.1/H35.1(M).

Note 2: Supplementary data pertaining to the alloys covered by this specification when used in the form of castings are given in Specifications B26/B26M, B85/B85M, B108/B108M, B618/B618M, B686/B686M, B955/B955M, and B969/B969M.

1.3 Unless the order specifies the “M” specification designation, the material shall be furnished to the inch-pound units.

1.4 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A1.

1.5 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

1.6 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.

1.7 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

B686/B686M-18

Standard Specification for Aluminum Alloy Castings, High-Strength

B985-12(2016)

Standard Practice for Sampling Aluminum Ingots, Billets, Castings and Finished or Semi-Finished Wrought Aluminum Products for Compositional Analysis

B955/B955M-18

Standard Specification for Aluminum-Alloy Centrifugal Castings

B969-10

Standard Specification for Aluminum-Alloy Castings Produced by the Squeeze Casting, Thixocast and Rheocast Semi-Solid Casting Processes

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)

E607-02

Standard Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique Nitrogen Atmosphere

B26/B26M-18e1

Standard Specification for Aluminum-Alloy Sand Castings (Includes all amendments and changes 4/2/2021).

B85/B85M-18e1

Standard Specification for Aluminum-Alloy Die Castings (Includes all amendments and changes 4/2/2021).

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).

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).

H35.1/H35.1(M)

American National Standard Alloy and Temper Designation Systems for Aluminum Available from Aluminum Association, Inc., 1525 Wilson Blvd., Suite 600, Arlington, VA 22209, http://www.aluminum.org.

Designations and Chemical Composition Limits for Aluminum Alloys in the Form of Castings and Ingot

(The Pink Sheets)

B618/B618M-18e1

Standard Specification for Aluminum-Alloy Investment Castings (Includes all amendments and changes 4/2/2021).

B108/B108M-19

Standard Specification for Aluminum-Alloy Permanent Mold Castings

B666/B666M-20

Standard Practice for Identification Marking of Aluminum and Magnesium Products