GB/T 41950-2022
Metallic coatings—Electroplated coatings of zinc and zinc alloys on iron or steel with supplementary Cr(Ⅵ)-free treatment (English Version)
- Standard No.
- GB/T 41950-2022
- Language
- Chinese, Available in English version
- Release Date
- 2022
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 41950-2022
- Scope
- This document specifies the identification of zinc and zinc alloy electroplating coating systems that are free of hexavalent chromium passivation treatment on steel surfaces and the minimum corrosion resistance and minimum coating thickness required to be achieved under specified test conditions. The zinc alloy electroplating layer contains nickel or iron alloy elements, which are called zinc-nickel alloy electroplating layer or zinc-iron alloy electroplating layer respectively. This document is applicable to zinc and zinc alloy electroplating coatings without hexavalent chromium passivation treatment on steel surface. The main purpose of electroplating or coating systems is to protect steel components from corrosion.
GB/T 41950-2022 Referenced Document
- ISO 2080 Metallic and other inorganic coatings — Surface treatment, metallic and other inorganic coatings — Vocabulary
- ISO 27830:2017 Metallic and other inorganic coatings - Requirements for the designation of metallic and inorganic coatings
- ISO 3497 Metallic coatings - Measurement of coating thickness - X-ray spectrometric methods
- ISO 3613:2021 Metallic and other inorganic coatings - Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys - Test methods
- ISO 9227 Corrosion tests in artificial atmospheres — Salt spray tests — Amendment 1: Footnote of Warning*， 2024-02-19 Update
- ISO 9587 Metallic and other inorganic coatings - Pretreatment of iron or steel to reduce the risk of hydrogen embrittlement
- ISO 9588 Metallic and other inorganic coatings - Post-coating treatments of iron or steel to reduce the risk of hydrogen embrittlement
GB/T 41950-2022 history
- 2022 GB/T 41950-2022 Metallic coatings—Electroplated coatings of zinc and zinc alloys on iron or steel with supplementary Cr(Ⅵ)-free treatment
