ASTM B240-04e1
(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
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:UNSAASTMACommonTraditionalZ33521AG 40AAlloy 3Zamak 3Z33522AG 40BAlloy 7Zamak 7Z35530AC 41AAlloy 5Zamak 5Z35540AC 43AAlloy 2Zamak 2Z35635ZA-8Z35630ZA-12Z35840ZA-27See , 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 B 86, 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 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 Data Sheet 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.
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Designation: B 240 – 04
Standard Specification for
Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for
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Foundry and Die Castings
This standard is issued under the fixed designation B 240; 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 (e) indicates an editorial change since the last revision or reapproval.
1
e NOTE—Footnote A in paragraph 1.1 was corrected editorially in April 2005.
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:
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continuous cast bar stock as designated and specified in Table 2.2 ASTM Standards:
1. Seven alloy compositions are specified, designated as B86 SpecificationforZincandZinc-Aluminum(ZA)Alloy
follows: Foundry and Die Castings
A A
B 275 Practice for Codification of Certain Nonferrous Met-
UNS ASTM Common Traditional
als and Alloys, Cast and Wrought
Z33521 AG 40A Alloy 3 Zamak 3
B 899 Terminology Relating to Non-ferrous Metals and
Z33522 AG 40B Alloy 7 Zamak 7
Z35530 AC 41A Alloy 5 Zamak 5 Alloys
Z35540 AC 43A Alloy 2 Zamak 2
B 908 Practice for the Use of Color Codes for Zinc Casting
Z35635 ZA-8
Alloy Ingot
Z35630 ZA-12
E29 Practice for Using Significant Digits in Test Data to
Z35840 ZA-27
__________
Determine Conformance with Specifications
A
See Table 1, footnote B.
E47 Test Methods for Chemical Analysis of Zinc Die-
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Casting Alloys
1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540 are
E88 Practice for Sampling Nonferrous Metals and Alloys
used primarily for remelting in the manufacture of pressure die
in Cast Form for Determination of Chemical Composition
castings. Zinc-aluminum alloys Z35635, Z35630, and Z35840
E 527 Practice for Numbering Metals and Alloys (UNS)
are used for remelting in the manufacture of both foundry and
E 536 TestMethodsforChemicalAnalysisofZincandZinc
pressure die castings. Castings made from these ingots are
Alloys
specified in SpecificationB86, Standard Specification for Zinc
E 634 Practice for Sampling of Zinc and Zinc Alloys for
and Zinc-Aluminum Alloys for Foundry and Die Castings.
Optical Emission Spectrometric Analysis
1.3 The values stated in inch-pound units are to be regarded
2.3 Other ASTM Document:
as standard.
4
Methods for Emission Spectrochemical Analysis
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to become familiar
3.1 Terms shall be defined in accordance with Terminology
with all hazards including those identified in the appropriate
B 899.
Material Safety Data Sheet (MSDS) for this product/material
3.2 Definitions of Terms Specific to This Standard:
as provided by the manufacturer, to establish appropriate
safety and health practices, and determine the applicability of
regulatory limitations prior to use.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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
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This specification is under the jurisdiction of ASTM Committee B02 on the ASTM website.
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Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee Withdrawn.
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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, 2004. Published October 2004. Originally
national, 1982.
approved in 1949. Last previous edition approved in 2003 as B 240 - 03.
*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.
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B240–04
TABLE 1 Chemical and North American Color Code Requirements
Z33521 Z33522 Z35530 Z35540 Z35635 Z35630 Z35840
A,B,C,D A,B,C,D A,B,C,D A,B,C,DB,C,EB,C,EB,C,E
(AG40A) (AG40B) (AC41A) (AC43A)
ALLOY 3 ALLOY 7 ALLOY 5 ALLOY 2 ZA-8 ZA-12 ZA-27
Zamak 3 Zamak 7 Zamak 5 Zamak 2
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 0.025-0.05 0.010-0.020 0.03-0.06 0.025-0.05 0.020-0.030 0.020-0.030 0.012-0.020
Copper 0.10 max 0.10 max 0.75-1.25 2.6-2.9 0.8-1.3 0.5-1.2 2.0-2.5
Iron, Max 0.075 0.075 0.075 0.075 0.065 0.065 0
...
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