ISO 2081:2018
Metallic and other inorganic coatings — Electroplated coatings of zinc with supplementary treatments on iron or steel
ISO 2081:2018 specifies requirements for electroplated coatings of zinc with supplementary treatments on iron or steel. It includes information to be supplied by the purchaser to the electroplater, and the requirements for heat treatment before and after electroplating.
ISO 2081:2018 is not applicable to zinc coatings applied
- to sheet, strip or wire in the non-fabricated form,
- to close-coiled springs, or
- for purposes other than protective or decorative.
ISO 2081:2018 does not specify requirements for the surface condition of the basis metal prior to electroplating with zinc. However, defects in the surface of the basis metal can adversely affect the appearance and performance of the coating.
The coating thickness that can be applied to threaded components can be limited by dimensional requirements, including class or fit.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, abbreviated terms and symbols
3.1 Terms and definitions
3.2 Abbreviated terms
3.3 Symbols
4 Information to be supplied by the purchaser to the electroplater
4.1 Essential information
4.2 Additional information
5 Designation
5.1 General
5.2 Designation specification
5.3 Designation of the basis material
5.4 Designation of heat treatment requirements
6 Requirements
6.1 Appearance
6.2 Thickness
6.3 Trivalent chromium conversion coatings and other supplementary treatments
6.4 Adhesion of zinc and trivalent chromium conversion coatings
6.5 Accelerated corrosion testing
6.5.1 Neutral salt spray test
6.5.2 Corrosion rating
6.6 Stress relief heat treatments before cleaning and metal deposition
6.7 Hydrogen-embrittlement-relief heat treatments after electroplating
7 Sampling
Annex A (normative) Designation of supplementary treatments
Annex B (normative) Measurement of average thickness of coating on small articles
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, abbreviated terms and symbols
3.1 Terms and definitions
3.2 Abbreviated terms
3.3 Symbols
4 Information to be supplied by the purchaser to the electroplater
4.1 Essential information
4.2 Additional information
5 Designation
5.1 General
5.2 Designation specification
5.3 Designation of the basis material
5.4 Designation of heat treatment requirements
6 Requirements
6.1 Appearance
6.2 Thickness
6.3 Trivalent chromium conversion coatings and other supplementary treatments
6.4 Adhesion of zinc and trivalent chromium conversion coatings
6.5 Accelerated corrosion testing
6.5.1 Neutral salt spray test
6.5.2 Corrosion rating
6.6 Stress relief heat treatments before cleaning and metal deposition
6.7 Hydrogen-embrittlement-relief heat treatments after electroplating
7 Sampling
Annex A (normative) Designation of supplementary treatments
Annex B (normative) Measurement of average thickness of coating on small articles
Bibliography