ASTM B240-09
(Specification)Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings
Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings
ABSTRACT
This specification covers commercial zinc and zinc-aluminum alloys in ingot form for remelting for the manufacture of pressure die castings, foundry castings and continuous cast bar stock. Seven alloy compositions are specified, which includes Z33521, Z33522, Z35530, Z35540, for zinc alloys and Z35635, Z35630, Z35840, for zinc-aluminum alloys. The material shall be of uniform quality and reasonably free from dross, adhering foreign matter, and surafce oxide. The determination of chemical composition shall be made in accordance with suitable analytical methods.
SCOPE
1.1 This specification covers commercial zinc and zinc-aluminum (ZA) alloys in ingot form for remelting for the manufacture of pressure die castings, foundry castings and continuous cast bar stock as designated and specified in Table 1. Seven alloy compositions are specified, designated as follows:
CommonTraditionalASTMAUNSA Alloy 3Zamak 3AG 40AZ33521 Alloy 7Zamak 7AG 40BZ33522 Alloy 5Zamak 5AC 41AZ35530 Alloy 2Zamak 2AC 43AZ35540 ZA-8ZA-8 ...Z35635 ZA-12ZA-12...Z35630 ZA-27ZA-27...Z35840 __________
A See Table 1, footnote B.
1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540 are used primarily for remelting in the manufacture of pressure die castings. Zinc-aluminum alloys Z35635, Z35630, and Z35840 are used for remelting in the manufacture of both foundry and pressure die castings. Castings made from these ingots are specified in Specification B86, Standard Specification for Zinc and Zinc-Aluminum Alloys for Foundry and Die Castings.
1.3 The values stated in inch-pound units are to be regarded as standard.
1.4 Systems of nomenclature used to designate zinc and zinc-aluminum (ZA) alloys used for casting are described in Appendix X1.
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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.
TABLE 1 Chemical and North American Color Code Requirements Alloy 3 A, B, C, DAlloy 7 A, B, C, DAlloy 5 A,B ,C ,DAlloy 2 A,B ,C,DZA-8 B, C, EZA-12 B, C, EZA-27 B, C, E Zamak 3Zamak 7Zamak 5Zamak 2ZA-8ZA-12ZA-27 (AG40A)(AG40B)(AC41A)(AC43A) Z33521Z33522Z35530Z35540Z35635Z35630Z35840 Color CodeFNoneBrownBlackGreenBlueOrangePurple Element Aluminum3.9-4.33.9-4.33.9-4.33.9-4.38.2-8.810.8-11.525.5-28.0 Magnesium0.03-0.060.010-0.0200.03-0.060.025-0.050.02-0.030.02-0.030.012-0.020 Copper0.10 max0.10 max0.7-1.12.7-3.30.9-1.30.5-1.22.0-2.5 Iron, Max0.0350.0750.0350.0350.0350.050.07 Lead, Max0.00400.00300.00400.00400.0050.0050.005 Cadmium, Max0.00300.00200.00300.00300.0050.0050.005 Tin, Max0.00150.00100.00150.00150.0020.0020.002 Nickel- - -0.005-0.020- - -- - -- - - - - - - - - ZincGRemainderRemainderRemainderRemainderRemainderRemainderRemainder
A Zinc alloy ingot for die casting may contain nickel, chromium, silicon, and manganese in amounts of up to 0.02, 0.02, 0.035 and 0.05 %, respectively. No harmful effects have ever been noted due to the presence of these elements in up to these concentrations and, therefore, analyses are not required for these elements, except that nickel analysis is required for Z33522.
B ASTM alloy designations were established in accordance with Practice B275. UNS assignations were established in accordance with Practice E527. The last digit of a UNS number differentiates between alloys of similar composition. UNS designations for ingot and casting versions of an alloy were not assigned in the same sequence for all alloys.
C For purposes of acceptance and rejection, the observed value or calculated value obtained from analysis should be rounded to the nearest unit in the last right-hand place of figures, used...
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Designation: B240 – 09
Standard Specification for
Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for
1
Foundry and Die Castings
This standard is issued under the fixed designation B240; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
1.1 This specification covers commercial zinc and zinc- 2.1 The following documents of the issue in effect on data
aluminum (ZA) alloys in ingot form for remelting for the of order acceptance form a part of this specification to the
manufacture of pressure die castings, foundry castings and extent referenced herein:
2
continuous cast bar stock as designated and specified in Table 2.2 ASTM Standards:
1. Seven alloy compositions are specified, designated as B86 Specification for Zinc and Zinc-Aluminum (ZA)Alloy
follows: Foundry and Die Castings
A A
B275 Practice for Codification of Certain Nonferrous Met-
Common Traditional ASTM UNS
als and Alloys, Cast and Wrought
Alloy 3 Zamak 3 AG 40A Z33521
B897 Specification for Configuration of Zinc and Zinc
Alloy 7 Zamak 7 AG 40B Z33522
Alloy Jumbo Block and Half Block Ingot
Alloy 5 Zamak 5 AC 41A Z35530
Alloy 2 Zamak 2 AC 43A Z35540
B899 Terminology Relating to Non-ferrous Metals and
ZA-8 ZA-8 . Z35635
Alloys
ZA-12 ZA-12 . Z35630
B908 Practice for the Use of Color Codes for Zinc Casting
ZA-27 ZA-27 . Z35840
__________
Alloy Ingot
A
See Table 1, footnote B.
E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540 are
E88 Practice for Sampling Nonferrous Metals andAlloys in
used primarily for remelting in the manufacture of pressure die
Cast Form for Determination of Chemical Composition
castings. Zinc-aluminum alloys Z35635, Z35630, and Z35840
E527 Practice for Numbering Metals and Alloys in the
are used for remelting in the manufacture of both foundry and
Unified Numbering System (UNS)
pressure die castings. Castings made from these ingots are
E536 Test Methods for ChemicalAnalysis of Zinc and Zinc
specified in Specification B86, Standard Specification for Zinc
Alloys
and Zinc-Aluminum Alloys for Foundry and Die Castings.
E634 Practice for Sampling of Zinc and Zinc Alloys for
1.3 The values stated in inch-pound units are to be regarded
Optical Emission Spectrometric Analysis
as standard.
2.3 Other ASTM Document:
1.4 Systems of nomenclature used to designate zinc and
3
Methods for Emission Spectrochemical Analysis
zinc-aluminum (ZA) alloys used for casting are described in
4
2.4 ISO Standards:
Appendix X1.
ISO 301 Zinc Alloy Ingots Intended for Casting
1.5 This standard does not purport to address all of the
ISO3815–1 Zincandzincalloys—Part1:Analysisofsolid
safety concerns, if any, associated with its use. It is the
samples by optical emission spectrometry.
responsibility of the user of this standard to become familiar
ISO 3815–2 Zinc and zinc alloys — Part 2: Analysis by
with all hazards including those identified in the appropriate
inductivelycoupledplasmaopticalemissionspectrometry.
Material Safety Data Sheet (MSDS) for this product/material
as provided by the manufacturer, to establish appropriate
safety and health practices, and determine the applicability of
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
regulatory limitations prior to use.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
1
This specification is under the jurisdiction of ASTM Committee B02 on the ASTM website.
3
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee Methods for Emission Spectrochemical Analysis: General Practices, Nomen-
B02.04 on Zinc and Cadmium. clature, Standard Methods, Proposed Methods, Suggested Methods, ASTM Inter-
Current edition approved Oct. 1, 2009. Published November 2009. Originally national, 1982.
´1 4
approved in 1949. Last previous edition approved in 2007 as B240 - 07 . DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/B0240-09. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
B240 – 09
TABLE 1 Chemical and North American Color Code Requirements
A,B,C,D A,B,C,D A,B,C,D A,B,C,D B,C,E B,C,E B,C,E
Alloy 3 Alloy 7 Alloy 5 Alloy 2 ZA-8 ZA-12 ZA-27
Zamak 3 Zamak 7 Zamak 5 Zamak 2
...
This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation:B240–07 Designation: B240 – 09
Standard Specification for
Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for
1
Foundry and Die Castings
This standard is issued under the fixed designation B240; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
´ NOTE—Summary of Changes was corrected editorially in March 2009.
1. Scope*
1.1 This specification covers commercial zinc and zinc-aluminum (ZA) alloys in ingot form for remelting for the manufacture
of pressure die castings, foundry castings and continuous cast bar stock as designated and specified in Table 1. Seven alloy
compositions are specified, designated as follows:
A A
Common Traditional ASTM UNS
Alloy 3 Zamak 3 AG 40A Z33521
Alloy 7 Zamak 7 AG 40B Z33522
Alloy 5 Zamak 5 AC 41A Z35530
Alloy 2 Zamak 2 AC 43A Z35540
ZA-8 ZA-8 . Z35635
ZA-12 ZA-12 . Z35630
ZA-27 ZA-27 . Z35840
__________
A
See Table 1, footnote B.
1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540 are used primarily for remelting in the manufacture of pressure die
castings. Zinc-aluminum alloys Z35635, Z35630, and Z35840 are used for remelting in the manufacture of both foundry and
pressure die castings. Castings made from these ingots are specified in Specification B86, Standard Specification for Zinc and
Zinc-Aluminum Alloys for Foundry and Die Castings.
1.3 The values stated in inch-pound units are to be regarded as standard.
1.4 Systems of nomenclature used to designate zinc and zinc-aluminum (ZA) alloys used for casting are described inAppendix
X1.
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 become familiar with all hazards including those identified in the appropriate Material Safety Data
Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and
determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2.1 The following documents of the issue in effect on data of order acceptance form a part of this specification to the extent
referenced herein:
2
2.2 ASTM Standards:
B86 Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
B275 Practice for Codification of Certain Nonferrous Metals and Alloys, Cast and Wrought
B897 Specification for Configuration of Zinc and Zinc Alloy Jumbo Block and Half Block Ingot
B899 Terminology Relating to Non-ferrous Metals and Alloys
B908 Practice for the Use of Color Codes for Zinc Casting Alloy Ingot
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications E47Test Methods for
1
This specification is under the jurisdiction ofASTM Committee B02 on Nonferrous Metals andAlloys and is the direct responsibility of Subcommittee B02.04 on Zinc
and Cadmium.
Current edition approved July 1, 2007. Published August 2007. Originally approved in 1949. Last previous edition approved in 2006 as B240-06. DOI:
10.1520/B0240-07E01.
´1
Current edition approved Oct. 1, 2009. Published November 2009. Originally approved in 1949. Last previous edition approved in 2007 as B240 - 07 . DOI:
10.1520/B0240-09.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
B240 – 09
TABLE 1 Chemical and North American Color Code Requirements
A,B,C,D A,B,C,D A,B,C,D A,B,C,D B,C,E B,C,E B,C,E
Alloy 3 Alloy 7 Alloy 5 Alloy 2 ZA-8 ZA-12 ZA-27
Zamak 3 Zamak 7 Zamak 5 Zamak 2 ZA-8 ZA-12 ZA-27
(AG40A) (AG40B) (AC41A) (AC43A)
Z33521 Z33522 Z35530 Z35540 Z35635 Z35630 Z35840
F
Color Code None Brown Black Green Blue Orange Purple
Element
Aluminum 3.9-4.3 3.9-4.3 3.9-4.3 3.9-4.3 8.2-8.8 10.8-11.5 25.5-28.0
Magnesium 0.03-0.06 0.010-0.020 0.03-0.06 0.025-0.05 0.02-0.03 0.02-0.03 0.012-0.020
Copper 0.10 max 0.10 max 0.7-1.1 2.7-3.3 0.9-1.3 0.5-1.2 2.0-2.5
Iron, Max 0.035 0.075 0.035 0.035 0.035 0.05 0.07
Lead, Ma
...
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