GB/T 9797-1997 (English Version) PDF

Standard No.: GB/T 9797-1997
Language: Chinese, Available in English version
Release Date: 1997
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status: Be replaced 2006-04
Replace By: GB/T 9797-2005
Latest: GB/T 9797-2022

Scope: This standard specifies the requirements for the decorative and protective nickel decachrome and copper ten nickel decachrome electrodeposited coatings on steel, zinc alloys, copper and copper alloys, aluminum and aluminum alloys. Several levels of coatings with different thicknesses and types are given, as well as guidelines for the selection of coating levels for coated parts exposed to corresponding service conditions. This standard applies to decorative and protective nickel decachrome and copper ten nickel decachrome electrodeposited coatings on steel, zinc alloys, copper and copper alloys, aluminum and aluminum alloys. This standard does not specify the required surface condition of the base metal prior to plating. This standard does not apply to unformed plates, strips, wires, nor does it apply to nickel decachrome or copper ten nickel decachrome electrodeposits on threaded fasteners or seal springs. Note 1 See GB12332 and GB11379 for the requirements of nickel and chromium plating layers for engineering purposes, respectively. 2 See GB/T9798 for the requirements of similar coatings without chrome surface for decorative protection.

GB/T 9797-1997 history

2022 GB/T 9797-2022 Metallic and other inorganic coatings—Electrodeposited coatings of nickel，nickel plus chromium, copper plus nickel and of copper plus nickel plus chromium
2005 GB/T 9797-2005 Metallic coating.Electroplated coatings of nickel plus chromium and of copper plus nickel plus chromium
1997 GB/T 9797-1997 Metallic coatings--Electrodeposited coatings of nickel plus chromium and of copper plus nickel plus chromium