ASTM-B840 › Historical Revision Information
Standard Specification for Electrodeposited Coatings for Zinc Cobalt Alloy Deposits
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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.
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)
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02.05 (Metallic and Inorganic Coatings; Metal Powders and Metal Powder Products)
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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Superseded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