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ASTM B545-2013 Standard Specification for Electrodeposited Coatings of Tin

Standard Number:  ASTM B545-2013
Title:  Standard Specification for Electrodeposited Coatings of Tin
Language:  English
Execute Date:  2013/5/1
Status:  Current
International Classification for Standards (ICS)MANUFACTURING ENGINEERING>>Surface treatment and coating>>Metallic coatings
CCS Classification for Standardscomprehensive>>Based on the standard>>Materials protection
Publisher:  American Society for Testing Material (ASTM)
Number of Pages:  

Description:1.1 This specification covers the requirements for electrodeposited (electroplated) coatings of tin applied to metallic articles. Tin coatings are used to provide a low contact-resistance surface, to protect against corrosion (see 1.2), to facilitate soldering, to provide anti-galling properties, and to be a stopoff coating in the nitriding of high-strength steels.1.2 Some corrosion can be expected from tin coatings exposed outdoors. In normal indoor exposure, tin is protective on iron, steel, nickel, copper, and their alloys. Corrosion can be expected at discontinuities in the coating (such as pores) due to galvanic couples formed between the tin and the underlying metal through the discontinuities, especially in humid atmospheres. Porosity increases as the coating thickness decreases, so that minimum thicknesses must be specified for each application. Parts coated with tin can be assembled safely in contact with iron and steel, tin-coated aluminum, yellow chromated zinc, cadmium, and  
File Format:  PDF(Acrobat Reader) or Word version doc Document
File Size:  376KB
Tile in English:  Standard Specification for Electrodeposited Coatings of Tin

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