GB/T 39495-2020
ActiveMetallic and other inorganic coatings—Chromate-free chemical conversion coatings on allumion and its alloys
金属及其他无机覆盖层 铝及铝合金无铬化学转化膜
Application Summary AI generated
This standard specifies requirements for chromate-free chemical conversion coatings on aluminum and its alloys, used as an environmentally friendly alternative to traditional chromate treatments. It is applied in manufacturing industries such as automotive, aerospace, and electronics for corrosion protection and paint adhesion on aluminum components. The standard guides quality control and procurement in production and testing contexts where hexavalent chromium is prohibited.
Related Standards
GB/T 9792-2003
Conversion coatings on metallic materials--Determination of coating mass per unit area--Gravimetric methods
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GB/T 4957-2003
Non-conductive coatings on non-magnetic basis metals--Measurement of coating thickness--Eddy current
GB/T 4956-2003
Non-magnetic coatings on magnetic substrates--Measurement of coating thickness--Magnetic method
GB/T 9791-2003
Chromate conversion coatings on zinc，cadmium，aluminium-zinc alloys and zinc-aluminium alloys--Test methods
GB/T 19354-2003
Vitreous and porcelain enamels for aluminium--Determination of the adhesion of enamels on aluminium under the action of electrolytic solution (spall test)
GB/T 19353-2003
Vitreous and porcelain enamels--Corrosion tests in closed systems
GB/T 19355-2003
Protection against corrosion ofiron and steel in structures--Zinc and aluminum coatings--Guidelines
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