ASTM B240-10
(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:
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Designation:B240 −10
StandardSpecification 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* with all hazards including those identified in the appropriate
Material Safety Data Sheet (MSDS) for this product/material
1.1 This specification covers commercial zinc and zinc-
as provided by the manufacturer, to establish appropriate
aluminum (ZA) alloys in ingot form for remelting for the
safety and health practices, and determine the applicability of
manufacture of pressure die castings, foundry castings and
regulatory limitations prior to use.
continuous cast bar stock as designated and specified in Table
1. Seven alloy compositions are specified, designated as
2. Referenced Documents
follows:
2.1 The following documents of the issue in effect on data
A A
Common Traditional ASTM UNS
of order acceptance form a part of this specification to the
Alloy 3 Zamak 3 AG 40A Z33521
extent referenced herein:
Alloy 7 Zamak 7 AG 40B Z33522
2
Alloy 5 Zamak 5 AC 41A Z35530 2.2 ASTM Standards:
Alloy 2 Zamak 2 AC 43A Z35540
B86 Specification for Zinc and Zinc-Aluminum (ZA) Alloy
ZA-8 ZA-8 . Z35635
Foundry and Die Castings
ZA-12 ZA-12 . Z35630
ZA-27 ZA-27 . Z35840 B275 Practice for Codification of Certain Nonferrous Metals
__________
and Alloys, Cast and Wrought
B897 Specification for Configuration of Zinc and ZincAlloy
A
See Table 1, footnote B.
Jumbo Block and Half Block Ingot
B899 Terminology Relating to Non-ferrous Metals and Al-
loys
1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540 are
B908 Practice for the Use of Color Codes for Zinc Casting
used primarily for remelting in the manufacture of pressure die
Alloy Ingot
castings. Zinc-aluminum alloys Z35635, Z35630, and Z35840
B949 Specification for General Requirements for Zinc and
are used for remelting in the manufacture of both foundry and
Zinc Alloy Products
pressure die castings. Castings made from these ingots are
E29 Practice for Using Significant Digits in Test Data to
specified in Specification B86, Standard Specification for Zinc
Determine Conformance with Specifications
and Zinc-Aluminum Alloys for Foundry and Die Castings.
E527 Practice for Numbering Metals and Alloys in the
Unified Numbering System (UNS)
1.3 The values stated in inch-pound units are to be regarded
E536 Test Methods for ChemicalAnalysis of Zinc and Zinc
as standard. No other units of measurement are included in this
Alloys
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
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to become familiar
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
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,
B02.04 on Zinc and Cadmium. Nomenclature, Standard Methods, Proposed Methods, Suggested Methods, ASTM
Current edition approved April 1, 2010. Published May 2010. Originally International, 1982.
4
approved in 1949. Last previous edition approved in 2009 as B240 - 09. DOI: Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
10.1520/B0240-10. 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 ----------------------
B240−10
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.
...
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.
Designation:B240–09 Designation: B240 – 10
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*
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.
1.3The values stated in inch-pound units are to be regarded as standard.
1.3 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this
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
B949 Specification for General Requirements for Zinc and Zinc Alloy Products
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.
´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.
Current edition approvedApril 1, 2010. Published May 2010. Originally approved in 1949. Last previous edition approved in 2009 as B240 - 09. DOI: 10.1520/B0240-10.
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 – 10
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
...
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