ASTM B240-98e1

Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings

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 and foundry castings as designated and specified in Table 1. Seven alloy compositions are specified, designated as follows:UNSAASTMA CommonZ33521AG 40AAlloy 3Z33522AG 40BAlloy 7Z35530AC 41AAlloy 5Z35540AC 43AAlloy 2Z35635ZA-8Z35630ZA-12Z35840ZA-27
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 ASTM 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.
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 Data Sheet 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.

General Information

• Status: Historical
• Publication Date: 09-May-2001
• ICS: 77.150.60 - Lead, zinc and tin products
• Technical Committee: B02 - Nonferrous Metals and Alloys
• Drafting Committee: B02.04 - Zinc and Cadmium

Relations

• Replaced By: ASTM B240-01 - Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for Foundry and Die Castings
• Effective Date: 10-May-2001
• Referred By: ASTM B952/B952M-19 - Standard Specification for Zinc Alloys in Ingot Form for Spin Casting
• Effective Date: 10-May-2001
• Referred By: ASTM B949-23 - Standard Specification for General Requirements for Zinc and Zinc Alloy Products
• Effective Date: 10-May-2001
• Referred By: ASTM B86-22 - Standard Specification for Zinc and Zinc-Aluminum (ZA) Alloy Foundry and Die Castings
• Effective Date: 10-May-2001
• Referred By: ASTM B908-22 - Standard Practice for the Use of Color Codes for Zinc Casting Alloy Ingot
• Effective Date: 10-May-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
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Designation: B 240 – 98
Standard Specification for
Zinc and Zinc-Aluminum (ZA) Alloys in Ingot Form for
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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.
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e NOTE—The caveat in section 1.4 and section 3. Terminology were added editorially in December 2000.
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:
E 29 Practice for Using Significant Digits in Test Data to
A A
UNS ASTM Common
4
Determine Conformance with Specifications
Z33521 AG 40A Alloy 3
Z33522 AG 40B Alloy 7
E 47 Test Methods for Chemical Analysis of Zinc Die-
Z35530 AC 41A Alloy 5
5
Casting Alloys
Z35540 AC 43A Alloy 2
E 88 Practice for Sampling Nonferrous Metals and Alloys
Z35635 ZA-8
5
Z35630 ZA-12
in Cast Form for Determination of Chemical Composition
Z35840 ZA-27
6
E 527 Practice for Numbering Metals and Alloys (UNS)
1.2 Zinc alloys Z33521, Z33522, Z35530, and Z35540 are E 536 Test Method for Chemical Analysis of Zinc and Zinc
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used primarily for remelting in the manufacture of pressure die Alloys
castings. Zinc-aluminum alloys Z35635, Z35630, and Z35840 E 634 Practice for Sampling of Zinc and Zinc Alloys for
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are used for remelting in the manufacture of both foundry and Optical Emission Spectrochemical Analysis
pressure die castings. Castings made from these ingots are 2.3 Other ASTM Document:
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specified in ASTM B86, Standard Specification for Zinc and Methods for Emission Spectrochemical Analysis
Zinc-Aluminum Alloys for Foundry and Die Castings.
3. Terminology
1.3 The values stated in inch-pound units are to be regarded
3.1 Terms shall be defined in accordance with Terminology
as standard.
1.4 This standard does not purport to address all of the B 899.
safety concerns, if any, associated with its use. It is the
4. Ordering Information
responsibility of the user of this standard to become familiar
4.1 Orders for ingot under this specification shall include
with all hazards including those identified in the appropriate
the following information:
Material Data Sheet for this product/material as provided by
4.1.1 Quantity in pounds,
the manufacturer, to establish appropriate safety and health
4.1.2 Alloy (Table 1),
practices, and determine the applicability of regulatory limi-
4.1.3 Size, if not manufacturer’s standard,
tations prior to use.
4.1.4 Specification number and date,
2. Referenced Documents
4.1.5 Source inspection (Section 9),
2.1 The following documents of the issue in effect on data 4.1.6 Marking (Section 11), and
4.1.7 Whether certification is required (Section 12).
of order acceptance form a part of this specification to the
extent referenced herein:
2.2 ASTM Standards:
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Annual Book of ASTM Standards, Vol 02.04.
3
Annual Book of ASTM Standards, Vol 02.02.
1 4
This specification is under the jurisdiction of ASTM Committee B-2 on Annual Book of ASTM Standards, Vol 14.02.
5
Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 03.05.
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B02.04 on Zinc and Cadmium. Annual Book of ASTM Standards, Vol 01.01.
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Current edition approved Apr. 10, 1998. Published September 1998. Originally Annual Book of ASTM Standards, Vol 03.06.
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published as two separate Standards, B 240-49, last previous edition B 240-94 and Available from ASTM Headquarters, 1916 Race St., Philadelphia, PA 19103,
B669-80, last previous edition B 669-84. PCN 03-502071-39.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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B 240
TABLE 1 Chemical Requirements
Element 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
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 0.025-0.05 0.010-0.020 0.03-0.06 0.025-0.05 0.020-0.030 0.020-0.030 0.012-0.020
Copper 0.10 max 0.10 max 0.75-1.25 2.6-2.9 0.8-1.3 0.5-1.2 2.0-2.5
Iron, Max 0.075 0.075 0.075 0.075 0.065 0.065 0.072
Lead, Max 0.004 0.0020 0.004 0.004 0.005 0.005 0.005
...