ASTM B240-03

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Designation: B 240 – 03
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 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. Scope* B 86 Specification for Zinc and Zinc-Aluminum (ZA) Alloy
2
Foundry and Die Castings
1.1 This specification covers commercial zinc and zinc-
B 275 Practice for Codification of Certain Nonferrous Met-
aluminum (ZA) alloys in ingot form for remelting for the
3
als and Alloys, Cast and Wrought
manufacture of pressure die castings and foundry castings as
B 899 Terminology Relating to Non-ferrous Metals and
designated and specified in Table 1. Seven alloy compositions
2
Alloys
are specified, designated as follows:
B 908 Practice for the Use of Color Codes for Zinc Casting
A A
UNS ASTM Common Traditional
2
Alloy Ingot
Z33521 AG 40A Alloy 3 Zamak 3
E 29 Practice for Using Significant Digits in Test Data to
Z33522 AG 40B Alloy 7 Zamak 7
4
Determine Conformance with Specifications
Z35530 AC 41A Alloy 5 Zamak 5
E 47 Test Methods for Chemical Analysis of Zinc Die-
Z35540 AC 43A Alloy 2 Zamak 2
5
Z35635 ZA-8
Casting Alloys
Z35630 ZA-12
E 88 Practice for Sampling Nonferrous Metals and Alloys
Z35840 ZA-27
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in Cast Form for Determination of Chemical Composition
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1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540 are
E 527 Practice for Numbering Metals and Alloys (UNS)
used primarily for remelting in the manufacture of pressure die E 536 Test Methods for Chemical Analysis of Zinc and Zinc
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castings. Zinc-aluminum alloys Z35635, Z35630, and Z35840
Alloys
are used for remelting in the manufacture of both foundry and E 634 Practice for Sampling of Zinc and Zinc Alloys for
6
pressure die castings. Castings made from these ingots are
Optical Emission Spectrometric Analysis
specified in Specification B 86, Standard Specification for Zinc 2.3 Other ASTM Document:
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and Zinc-Aluminum Alloys for Foundry and Die Castings.
Methods for Emission Spectrochemical Analysis
1.3 The values stated in inch-pound units are to be regarded
3. Terminology
as standard.
3.1 Terms shall be defined in accordance with Terminology
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the B 899.
3.2 Definitions of Terms Specific to This Standard:
responsibility of the user of this standard to become familiar
with all hazards including those identified in the appropriate 3.2.1 die casting, n—a casting process in which molten
metal is injected under high velocity and pressure into a metal
Material Data Sheet for this product/material as provided by
the manufacturer, to establish appropriate safety and health die and solidified, also a product produced by such a process.
practices, and determine the applicability of regulatory limi- Alternately known as pressure die casting.
tations prior to use.
4. Ordering Information
2. Referenced Documents
4.1 Orders for ingot under this specification shall include
2.1 The following documents of the issue in effect on data the following information:
of order acceptance form a part of this specification to the 4.1.1 Quantity in pounds,
extent referenced herein:
2.2 ASTM Standards:
2
Annual Book of ASTM Standards, Vol 02.04.
3
Annual Book of ASTM Standards, Vol 02.02.
4
Annual Book of ASTM Standards, Vol 14.02.
1 5
This specification is under the jurisdiction of ASTM Committee B02 on Withdrawn; see 1997 Annual Book of ASTM Standards, Vol 03.05.
6
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 03.05.
7
B02.04 on Zinc and Cadmium. Annual Book of ASTM Standards, Vol 01.01.
8
Current edition approved June 10, 2003. Published August 2003. Originally Available from ASTM International Headquarters, 100 Barr Harbor Drive, PO
e1
approved in 1949. Last previous edition approved in 2001 as B 240 - 01 . Box C700, West Conshohocken, PA 19428, PCN 03-502071-39.
*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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B240–03
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.
...