2505622

ASTM B545-22

Standard Specification for Electrodeposited Coatings of Tin

standard by ASTM International, 11/15/2022

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Full 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 solder coatings. (See X5.1 for oxidation and corrosion properties.)
1.3 This specification applies to electroplated coatings of not less than 99 % tin (except where deliberately alloyed for special purposes, as stated in X6.3) obtained from any of the available tin electroplating processes (see 4.3).
1.4 This specification does not apply to hot-dipped tin or other non-electrodeposited coating; it also does not apply to mill products. For mill products, refer to Specifications A623 or A623M.
1.5 Units-The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
 

Product Details

Published:
11/15/2022
Number of Pages:
9
File Size:
1 file , 130 KB
Redline File Size:
2 files , 240 KB
Note:
This product is unavailable in Russia, Ukraine, Belarus
 

Document History

  1. ASTM B545-22

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    Standard Specification for Electrodeposited Coatings of Tin

    • Most Recent

  2. ASTM B545-13(2021)


    Standard Specification for Electrodeposited Coatings of Tin

    • Historical Version

  3. ASTM B545-13


    Standard Specification for Electrodeposited Coatings of Tin

    • Historical Version

  4. ASTM B545-97(2009)


    Standard Specification for Electrodeposited Coatings of Tin

    • Historical Version

  5. ASTM B545-97(2004)e1


    Standard Specification for Electrodeposited Coatings of Tin

    • Historical Version

  6. ASTM B545-97e1


    Standard Specification for Electrodeposited Coatings of Tin

    • Historical Version

  7. ASTM B545-97


    Standard Specification for Electrodeposited Coatings of Tin

    • Historical Version

  8. MIL MIL-T-10727C


    TIN PLATING: ELECTRODEPOSITED OR HOT-DIPPED, FOR FERROUS AND NONFERROUS METALS (SUPERSEDING MIL-T-10727B) (S/S BY ASTM-B545-1997 AND ASTM-B339-1995)

    • Historical Version