GB/T 15519-2002: Chemical conversion coatings -- Black oxide coating on iron and steel -- Specification and test methods

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Scope

This standard specifies the requirements for black oxide films on iron and steel
(including cast iron, wrought iron, carbon steel, low alloy steel and stainless
steel). Black oxide film can be used to reduce friction between sliding surfaces
or bearing surfaces, or for decoration, or to reduce light reflection.

Basic Data

Standard ID	GB/T 15519-2002 (GB/T15519-2002)
Description (Translated English)	Chemical conversion coatings. Black oxide coating on iron and steel. Specification and test methods
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	A29
Classification of International Standard	25.220.20
Word Count Estimation	8,880
Date of Issue	2002-04-16
Date of Implementation	2002-12-01
Older Standard (superseded by this standard)	GB/T 15519-1995
Quoted Standard	GB/T 10125; GB/T 12334; GB/T 12609; ISO 9587; ISO 9588
Adopted Standard	ISO 11408-1999, MOD
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary	This standard specifies the iron and steel (including cast iron, wrought iron, carbon steel, low alloy steel and stainless steel) Black oxide coating on request. Black oxide film can be used to reduce the sliding surface or the friction between the bearing surfaces, or for decoration, or to reduce light reflections. This film, whether through an additional preservative treatment, can be used where needed black surface, Even after additional embalmed in mildly corrosive conditions, it can only get very limited corrosion protection. This standard black oxide substrate before the state, processing and surface roughness has no requirements.