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ASTM B545-97(2009)
Standard Specification for Electrodeposited Coatings of Tin
Automatische name übersetzung:
Standard-Spezifikation für Galvanische Überzüge aus Zinn
NORM herausgegeben am 1.9.2009
Informationen über die Norm:
Bezeichnung normen: ASTM B545-97(2009)
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.9.2009
SKU: NS-7109
Zahl der Seiten: 8
Gewicht ca.: 24 g (0.05 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Die Annotation des Normtextes ASTM B545-97(2009) :
Keywords:
electrodeposited tin, electroplated tin, tin, tin coatings, Bend testing--coatings, Burnishing test--for coating adhesion, Coating adhesion--electrodeposited coatings, Copper alloy electrodeposited coatings, Electrodeposited coatings--specifications, Electrodeposited Sn coatings--specifications, Iron products (general)--electrodeposited coatings, Nickel alloy coatings--specifications, Quenching, Solder/soldering applications--specifications, Steel--electrodeposited coatings
Ergänzende Informationen
| 1. Scope | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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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 X5.2 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 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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| 2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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