GB/T 19349-2012: Metallic and other inorganic coatings -- Pretreatment of iron or steel to reduce the risk of hydrogen embrittlement

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Scope

This standard specifies the requirements for high-strength steel to eliminate stress heat treatment in order to reduce the subsequent pretreatment, electroplating, electroless plating, chemical transfer
And the degree of hydrogen embrittlement sensitivity or sensitivity in the process of phosphating. This standard applies to heat at 190 ° C to 230 ° C or higher
Processing without causing its performance to degrade the steel (see 6.2).
The heat treatment process specified in this standard reduces the tensile strength equal to or higher than 1000MPa and after the heat treatment by mechanical processing, grinding,
The hydrogen embrittlement susceptibility of cold formed or cold straightened steel is effective. The heat treatment process is used in any step where hydrogen may be present
Before, just as the cleaning process used for electroplating, electroless plating and other chemical cover before the same operation.
This standard does not apply to fasteners.

Basic Data

Standard ID	GB/T 19349-2012 (GB/T19349-2012)
Description (Translated English)	Metallic and other inorganic coatings -- Pretreatment of iron or steel to reduce the risk of hydrogen embrittlement
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	A29
Classification of International Standard	25.220.40
Word Count Estimation	9,965
Older Standard (superseded by this standard)	GB/T 19349-2003
Quoted Standard	ISO 2080; ISO 12686
Adopted Standard	ISO 9587-2007, IDT
Regulation (derived from)	National Standards Bulletin No. 41 of 2012
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard provides high strength steel stress relief heat treatment requirements in order to reduce the subsequent pretreatment, electroplating, electroless plating, chemical conversion and phosphating process sensitivity or susceptibility to hydrogen