Standard Historical Last Updated: Dec 31, 2010 Track Document
ASTM B252-92(2004)

Standard Guide for Preparation of Zinc Alloy Die Castings for Electroplating and Conversion Coatings

Standard Guide for Preparation of Zinc Alloy Die Castings for Electroplating and Conversion Coatings B0252-92R04 ASTM|B0252-92R04|en-US Standard Guide for Preparation of Zinc Alloy Die Castings for Electroplating and Conversion Coatings Standard new BOS Vol. 02.05 Committee B08
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Significance and Use

The performance and quality of electroplated or conversion-coated zinc alloy die casting depends upon the surface cleanliness and condition. Various metals are electroplated or conversion coatings are established on zinc alloys for decorative or engineering finish. The common electroplates applied are usually copper, nickel, and chromium for decorative and functional uses. The common conversion coatings applied are phosphates, chromates, and anodized coatings. Electroplated zinc die castings and conversion coatings on zinc die castings are used in many industries such as the marine, automotive, plumbing fixtures, and appliance industries.

Scope

1.1 This guide is intended as an aid in establishing and maintaining a procedure for preparing zinc alloy die castings for electroplating and conversion coatings. It is primarily intended for the preparation of Alloys UNS Z33521 (AG-40A) and UNS Z35530 (AC-41A) (Specification B 86) for electroplating with copper, nickel, and chromium (Specification B 456).

1.2 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 establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Details
Book of Standards Volume: 02.05
Developed by Subcommittee: B08.02
Pages: 4
DOI: 10.1520/B0252-92R04