ASTM International - ASTM F1136-88(1998)e1
Standard Specification for Chromium/Zinc Corrosion Protective Coatings for Fasteners
|Publication Date:||10 October 1998|
|ICS Code (Fasteners in general):||21.060.01|
|ICS Code (Metallic coatings):||25.220.40|
1.1 This specification covers the basic requirements for three grades of chromium/zinc inorganic coatings for threaded fasteners.
1.2 These coatings are applied by conventional dip-spin or dip-drain methods.
1.3 The coating process does not induce hydrogen embrittlement providing that the fasteners have not been pretreated with an acid.