ASTM-B952 2012(Redline)

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B952/B952M-12 Standard Specification for Zinc Alloys in Ingot Form for Spin Casting (Redline)

Published By	Publication Date	Number of Pages
ASTM	2012	4

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Categories: 77.150.60 - Lead, zinc and tin products, ASTM

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Description

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.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. 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 Table 1. Seven alloy compositions are specified, designated as follows:

1.2 Zinc alloys #2, #3, #5, and ZA-8 specified in Specification B240 are also used in the spin casting process.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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 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.

TABLE 1 Chemical and North American Color Code Requirements

^A Per Practice B908 .

^B 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 specific limit in accordance with the rounding procedure prescribed in Practice E29 .

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

B240 Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings 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 E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications E88 Practice for Sampling Nonferrous Metals and Alloys in Cast Form for Determination of Chemical Composition E536 Test Methods for Chemical Analysis of Zinc and Zinc Alloys E634 Practice for Sampling of Zinc and Zinc Alloys by Spark Atomic Emission Spectrometry

ISO Standards

ISOÃ¢Â€Â‰3815-2 Zinc and zinc alloys–Part 2: Analysis by inductively coupled plasma optical emission

Keywords

casting; casting alloys; centrifugical casting; prototyping; rubber mold; SC-A; SC-B; SC-C; silicon mold; spin casting; ZA alloys; Zamak; ZA-73; zinc; zinc-aluminum alloys;

ICS Code

ICS Number Code 77.150.60 (Lead, zinc and tin products)

Additional information

Common	Traditional
Cadmium, max	0.0030
Copper	2.6 – 2.9
Magnesium	0.1 – 0.2
Nickel, max	…
Element B
Color Code A
Tin, max	0.0015
Lead, max	0.004
ZA-73	…
Spin Casting Alloy SC-E	HJ20
Zinc	Remainder
Spin Casting Alloy SC-F	HJ40
Iron, max	0.035
Aluminum	3.9 – 4.3
Spin Casting Alloy SC-A	…
Spin Casting Alloy SC-B	…
Spin Casting Alloy SC-C	…
Spin Casting Alloy SC-D	HJ10
	Alloy SC-A
ICS Codes	77.150.60 - Lead, zinc and tin products

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ASTM-B952 2012(Redline)

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