ASTM B952-07
(Specification)Standard Specification for Zinc Alloys in Ingot Form for Spin Casting
Standard Specification for Zinc Alloys in Ingot Form for Spin Casting
ABSTRACT
This specification covers four zinc alloys in ingot form, namely: Spin Casting Alloy SC-A, Spin Casting Alloy SC-B, Spin Casting Alloy SC-C, and ZA-73, for remelting for the manufacture of spin castings. The alloys may be made by any approved process, shall be of uniform quality, and shall be free from dross or other harmful contamination. The ingots shall conform to the chemical composition limits prescribed for aluminum, magnesium, copper, iron, lead, cadmium, tin, nickel, and zinc. Chemical analysis requirements for determination and for verification (if needed) of chemical composition are detailed.
SCOPE
1.1 This specification covers zinc alloys in ingot form for remelting for the manufacture of Spin Castings as specified and designated, as shown in . Four alloy compositions are specified, designated as follows:
1.2 Zinc alloys #2, #3, #5, and ZA-8 specified in Specification B 240 are also used in the spin casting process.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 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.
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Designation: B 952 – 07
Standard Specification for
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Zinc Alloys in Ingot Form for Spin Casting
This standard is issued under the fixed designation B 952; 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 E29 Practice for Using Significant Digits in Test Data to
Determine Conformance with Specifications
1.1 This specification covers zinc alloys in ingot form for
E 47 Test Methods for Chemical Analysis of Zinc Die-
remeltingforthemanufactureofSpinCastingsasspecifiedand
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Casting Alloys
designated, as shown in Table 1. Four alloy compositions are
E88 Practice for Sampling Nonferrous Metals and Alloys
specified, designated as follows:
in Cast Form for Determination of Chemical Composition
Common UNS
E 536 TestMethodsforChemicalAnalysisofZincandZinc
Spin Casting Alloy SC-A .
Alloys
Spin Casting Alloy SC-B .
E 634 Practice for Sampling of Zinc and Zinc Alloys for
Spin Casting Alloy SC-C .
Optical Emission Spectrometric Analysis
ZA-73 .
1.2 Zinc alloys #2, #3, #5, and ZA-8 specified in Specifi- 3. Terminology
cation B 240 are also used in the spin casting process.
3.1 Terms shall be defined in accordance with Terminology
1.3 The values stated in SI units are to be regarded as the
B 899.
standard. The values given in parentheses are for information
3.2 Definitions of Terms Specific to This Standard:
only.
3.3 spin casting, n—a casting process in which molten
1.4 This standard does not purport to address all of the
metal is poured into a rubber, polymer, graphite or metal mold
safety concerns, if any, associated with its use. It is the
and spun centrifugally until solidified, also a product produced
responsibility of the user of this standard to become familiar
by such a process.
with all hazards including those identified in the appropriate
Material Safety Data Sheet (MSDS) for this product/material 4. Ordering Information
as provided by the manufacturer, to establish appropriate
4.1 Orders for ingots under this specification shall include
safety and health practices, and determine the applicability of
the following information:
regulatory limitations prior to use.
4.1.1 Quantity in pounds,
4.1.2 Alloy (Table 1),
2. Referenced Documents
4.1.3 Size, if not the manufacturer’s standard,
2.1 The following documents of the issue in effect on date
4.1.4 Specification number and date,
of order acceptance form a part of this specification to the
4.1.5 Source inspection (Section 7), and
extent referenced herein:
4.1.6 Marking (Section 9).
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2.2 ASTM Standards:
B 240 Specification for Zinc and Zinc-Aluminum (ZA) 5. Materials and Manufacture
Alloys in Ingot Form for Foundry and Die Castings
5.1 The alloys may be made by any approved process.
B 899 Terminology Relating to Non-ferrous Metals and
5.2 The material covered by this specification shall be of
Alloys
uniform quality and shall be free from dross or other harmful
B 908 Practice for the Use of Color Codes for Zinc Casting
contamination.
Alloy Ingot
6. Chemical Requirements
6.1 Limits—The alloy shall conform to the requirements as
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to chemical composition prescribed in Table 1. Conformance
This specification is under the jurisdiction of ASTM Committee B02 on
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee
shall be determined by the producer by analyzing samples
B02.04 on Zinc and Cadmium.
taken at the time the ingots are made. If the producer has
Current edition approved June 1, 2007. Published July 2007.
2 determined the chemical composition of the metal during the
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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the ASTM website. Withdrawn.
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B952–07
TABLE 1 Chemical and North American Color Code Requirements
Alloy SC-A Alloy SC-B Alloy SC-C ZA-73
A
Color Code . . . .
B
Element
Aluminum 3.9–4.3 3.9–4.3 3.4–4.6 7.7–8.0
Magnesium 0.1–0.2 0.4–0.6 0.4–0.43 0.02–0.03
Copper 2.6–2.9 2.7–3.3 1.3–1.4 3.0–3.3
Iron, max 0.035 0.035 0.10 0.075
Lead, max 0.004 0.004 0.015 0.005
Cadmium, max 0.0030 0.0030 0.005 0.003
Tin, max 0.0015 0.0015 0.005 0.002
Nickel, max . . 0.02 .
Zinc Remainder Remainder Remainder Remainder
A
Per Practice B 908.
B
For purposes of acceptance and rejection, the observed value or calculated value obtained from analysis should be rounded to the nearest unit in t
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