ASTM-B840 Historical Revision Information
Standard Specification for Electrodeposited Coatings for Zinc Cobalt Alloy Deposits

ASTM-B840 - 1999 R09 EDITION - SUPERSEDED
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This specification covers the requirements for electrodeposited zinc cobalt alloy coatings on metals. The coating class is Class 1 and five coating types are Type a, Type b, Type c, Type d, and Type e. The metal to be plated shall be subjected to such cleaning, pickling, and electroplating procedures. Coating requirements include: substrate, nature of coating, appearance, thickness, adhesion, corrosion resistance, and pre- and post-coating treatments of iron and steel for reducing the risk of hydrogen embrittlement. Adhesion, porosity, corrosion resistance, or appearance tests shall be made.

ORDER

Scope

1.1 This specification covers the requirements for electrodeposited zinc cobalt alloy coatings on metals.

1.2 The following precautionary caveat pertains to the test method portion only, Section 8, of this specification: 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.

Keywords

coatings electrodeposited; corrosion resistant coatings; electrodeposited zinc cobalt alloy plating; zinc cobalt; Corrosion-resistant coatings--specifications; Zinc alloys--electrodeposited coatings; Zinc-cobalt alloy; Zinc electrodeposited coatings--specifications; ICS Number Code 25.220.40 (Metallic coatings)

To find similar documents by ASTM Volume:

02.05 (Metallic and Inorganic Coatings; Metal Powders and Metal Powder Products)

To find similar documents by classification:

25.220.40 (Metallic coatings Including electrolytic depositions, cathodic coatings, autocatalytic coatings, etc.)

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Document Number

ASTM-B840-99(2009)

Revision Level

1999 R09 EDITION

Status

Superseded

Modification Type

Reapproval

Publication Date

Dec. 15, 2009

Document Type

Specification

Page Count

5 pages

Committee Number

B08.06