GB/T 19349-2012

Active

Metallic and other inorganic coatings - Pretreatment of iron or steel to reduce the risk of hydrogen embrittlement

金属和其它无机覆盖层 为减少氢脆危险的钢铁预处理

Standard Type
GBT
ICS
25.220.40
CCS
A29
Status
Active
Issue Date
2012-12-31
Implementation
2013-10-01
Centralized Committee
中国机械工业联合会
Issuing Authority
中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies pretreatment processes for iron or steel substrates before applying metallic or inorganic coatings, such as electroplating or chemical conversion coatings, to minimize the risk of hydrogen embrittlement. It is applied in manufacturing industries, particularly for high-strength steel components like fasteners, springs, and automotive parts, where hydrogen absorption during cleaning or pickling could cause delayed fracture. The standard provides guidelines for mechanical or chemical methods to reduce hydrogen uptake, ensuring component reliability in critical applications.

Related Standards

GB/T 9792-2003 Conversion coatings on metallic materials--Determination of coating mass per unit area--Gravimetric methods GB/T 19356-2003 Thermal spraying--Powders--Composition and technical supply conditions GB/T 4957-2003 Non-conductive coatings on non-magnetic basis metals--Measurement of coating thickness--Eddy current GB/T 4956-2003 Non-magnetic coatings on magnetic substrates--Measurement of coating thickness--Magnetic method GB/T 9791-2003 Chromate conversion coatings on zinc，cadmium，aluminium-zinc alloys and zinc-aluminium alloys--Test methods GB/T 19354-2003 Vitreous and porcelain enamels for aluminium--Determination of the adhesion of enamels on aluminium under the action of electrolytic solution (spall test) GB/T 19353-2003 Vitreous and porcelain enamels--Corrosion tests in closed systems GB/T 19355-2003 Protection against corrosion ofiron and steel in structures--Zinc and aluminum coatings--Guidelines
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.