• ASTM B240-09

ASTM B240-09

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

ASTM International, 10/01/2009

Publisher: ASTM

File Format: PDF

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Published:01/10/2009

Pages:4

File Size:1 file , 86 KB

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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 Z33521
Alloy 7 Zamak 7 AG 40B Z33522
Alloy 5 Zamak 5 AC 41A Z35530
Alloy 2 Zamak 2 AC 43A Z35540
ZA-8 ZA-8 ... Z35635
ZA-12 ZA-12 ... Z35630
ZA-27 ZA-27 ... Z35840
__________

A See Table 1, footnote B.



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 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.

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.

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)
Z33521 Z33522 Z35530 Z35540 Z35635 Z35630 Z35840
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

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