ASTM B240-13
(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:
Common
Traditional
ASTMA
UNSA
Alloy 3
Zamak 3
AG 40A
Z33524
Alloy 7
Zamak 7
AG 40B
Z33526
Alloy 5
Zamak 5
AC 41A
Z35532
Alloy 2
Zamak 2
AC 43A
Z35544
ZA-8
ZA-8
...
Z35637
ZA-12
ZA-12
...
Z35632
ZA-27
ZA-27
...
Z35842 A See Table 1, footnote B.
TABLE 1 Chemical and North American Color Code Requirements
Alloy 3 A, B, C, D
Alloy 7 A, B, C, D
Alloy 5 A,B,C,D
Alloy 2 A,B,C,D
ZA-8 B, C, E
ZA-12 B, C, E
ZA-27 B, C, E
Zamak 3
Zamak 7
Zamak 5
Zamak 2
ZA-8
ZA-12
ZA-27
(AG40A)
(AG40B)
(AC41A)
(AC43A)
(Z33524)
(Z33526)
(Z35532)
(Z35544)
(Z35637)
(Z35632)
(Z35842)
Color CodeF
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
0.035
0.035
0.035
0.035
0.05
0.07
Lead, Max
0.0040
0.0030
0.0040
0.0040
0.005
0.005
0.005
Cadmium, Max
0.0030
0.0020
0.0030
0.0030
0.005
0.005
0.005
Tin, Max
0.0015
0.0010
0.0015
0.0015
0.002
0.002
0.002
Nickel
- - -
0.005-0.020
- - -
- - -
- - -
- - -
- - -
ZincG
Remainder
Remainder
Remainder
Remainder
Remainder
Remainder
Remainder 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 Z33526.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 in expressing the specified limit, in accordance with the rounding procedure prescribed in Practice E29.D When this material is required to conform to ISO Standard 301, the chemical limits for thallium and indium each shall not exceed 0.001 %.E Zinc-aluminum ingot for foundry and pressure die casting may contain nickel, chromium, and manganese in amounts of up to 0.01 % each or 0.03 % total. No harmful effects have ever been noted due to the presence of these e...
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Designation:B240 −13
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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* responsibility of the user of this standard to become familiar
with all hazards including those identified in the appropriate
1.1 This specification covers commercial zinc and zinc-
Material Safety Data Sheet (MSDS) for this product/material
aluminum (ZA) alloys in ingot form for remelting for the
as provided by the manufacturer, to establish appropriate
manufacture of pressure die castings, foundry castings and
safety and health practices, and determine the applicability of
continuous cast bar stock as designated and specified in Table
regulatory limitations prior to use.
1. Seven alloy compositions are specified, designated as
follows:
2. Referenced Documents
A A
Common Traditional ASTM UNS
2.1 The following documents of the issue in effect on data
Alloy 3 Zamak 3 AG 40A Z33524
of order acceptance form a part of this specification to the
Alloy 7 Zamak 7 AG 40B Z33526
Alloy 5 Zamak 5 AC 41A Z35532
extent referenced herein:
Alloy 2 Zamak 2 AC 43A Z35544
2
ZA-8 ZA-8 . Z35637
2.2 ASTM Standards:
ZA-12 ZA-12 . Z35632
B86 Specification for Zinc and Zinc-Aluminum (ZA) Alloy
ZA-27 ZA-27 . Z35842
Foundry and Die Castings
A
B275 Practice for Codification of Certain Nonferrous Metals
See Table 1, footnote B.
and Alloys, Cast and Wrought
B897 Specification for Configuration of Zinc and ZincAlloy
Jumbo Block and Half Block Ingot
1.2 Zinc alloys Z33524, Z33526, Z35532, and Z35544 are
B899 Terminology Relating to Non-ferrous Metals and Al-
used primarily for remelting in the manufacture of pressure die
loys
castings. Zinc-aluminum alloys Z35637, Z35632, and Z35842
B908 Practice for the Use of Color Codes for Zinc Casting
are used for remelting in the manufacture of both foundry and
Alloy Ingot
pressure die castings. Castings made from these ingots are
B949 Specification for General Requirements for Zinc and
specified in Specification B86, Standard Specification for Zinc
Zinc Alloy Products
and Zinc-Aluminum Alloys for Foundry and Die Castings.
E29 Practice for Using Significant Digits in Test Data to
1.3 The values stated in inch-pound units are to be regarded
Determine Conformance with Specifications
as standard. No other units of measurement are included in this
E527 Practice for Numbering Metals and Alloys in the
standard.
Unified Numbering System (UNS)
E536 Test Methods for ChemicalAnalysis of Zinc and Zinc
1.4 Systems of nomenclature used to designate zinc and
Alloys
zinc-aluminum (ZA) alloys used for casting are described in
Appendix X1.
2.3 Other ASTM Document:
3
Methods for Emission Spectrochemical Analysis
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This specification is under the jurisdiction of ASTM Committee B02 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee Standards volume information, refer to the standard’s Document Summary page on
B02.04 on Zinc and Cadmium. the ASTM website.
3
Current edition approved Feb. 1, 2013. Published March 2013. Originally Methods for Emission Spectrochemical Analysis: General Practices,
approved in 1949. Last previous edition approved in 2010 as B240 – 10. DOI: Nomenclature, Standard Methods, Proposed Methods, Suggested Methods, ASTM
10.1520/B0240-13. International, 1982.
*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 ----------------------
B240−13
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)
(Z33524) (Z33526) (Z35532) (Z35544) (Z35637) (Z35632) (Z35842)
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
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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 − 10 B240 − 13
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
A A
Common Traditional ASTM UNS
Alloy 3 Zamak 3 AG 40A Z33521
Alloy 3 Zamak 3 AG 40A Z33524
Alloy 7 Zamak 7 AG 40B Z33522
Alloy 7 Zamak 7 AG 40B Z33526
Alloy 5 Zamak 5 AC 41A Z35530
Alloy 5 Zamak 5 AC 41A Z35532
Alloy 2 Zamak 2 AC 43A Z35540
Alloy 2 Zamak 2 AC 43A Z35544
ZA-8 ZA-8 . Z35635
ZA-8 ZA-8 . Z35637
ZA-12 ZA-12 . Z35630
ZA-12 ZA-12 . Z35632
ZA-27 ZA-27 . Z35840
ZA-27 ZA-27 . Z35842
__________
A
See Table 1, footnote B.
1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540Z33524, Z33526, Z35532, and Z35544 are used primarily for remelting
in the manufacture of pressure die castings. Zinc-aluminum alloys Z35635, Z35630,Z35637, Z35632, and Z35840Z35842 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. 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 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.
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:
1
This specification is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.04 on Zinc
and Cadmium.
Current edition approved April 1, 2010Feb. 1, 2013. Published May 2010March 2013. Originally approved in 1949. Last previous edition approved in 20092010 as
B240 - 09.B240 – 10. DOI: 10.1520/B0240-10.10.1520/B0240-13.
*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 − 13
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
(Z33524) (Z33526) (Z35532) (Z35544) (Z35637) (Z35632) (Z35842)
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 0.035 0.035 0.035 0.035 0.05 0.07
Lead, Max 0.0040 0.0030 0.0040 0.0040 0.005 0.005 0.005
Cadmium, Max 0.0030 0.0020 0.0030 0.0030 0.005 0.005 0.005
Tin, Max 0.0015 0.0010 0.0015 0.0015 0.002 0.002 0.002
Nickel - - - 0.005-0.020 - - - - - - - - - - - - - - -
G
Zinc Remainder Remainder Remainder Remainder Remainder Remainder Remainder
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, analy
...
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