Standard

ASTM B456:17(2022)

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Astratto

This specification establishes the requirements for several types and grades of electrodeposited copper plus nickel plus chromium and nickel plus chromium coatings on steel, copper, copper alloys, Type 300 and 400 series stainless steels, aluminum, aluminum alloys, and zinc alloys for application where both appearance and protection of the basis metal against corrosion are important. This specification does not cover plating on plastics. Each coating shall be designated a classification code, which comprises of the following numbers and symbols: service condition number, which indicates the severity of exposure for which the coating is intended; coating classification number, which contains the chemical symbol of each metallic element that comprises the basis metal, or the designated AISI number in the case of stainless steels, and their corresponding thickness; and symbols for expressing the type of coating. Products shall be sampled and inspected accordingly for visual defects, thickness, adhesion, elongation, ductility, corrosion, sulfur content, density, and discontinuities.

Specifiche dei prodotti

  • Standard da ASTM
  • Pubblicato:
  • Edizione: 17(2022)
  • Tipo di documento: IS
  • Publisher ASTM
  • Distributor ASTM
  • ICS 25.220.40

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