1.1 This guide covers cleaning and conditioning treatments used before metal deposition (Section 5), and immersion deposit/strike procedures (Section 6) that enhance the adhesion of metals that are subsequently applied to aluminum products by electrodeposition or by autocatalytic chemical reduction.
1.2 The following immersion deposit/strike procedures are covered:
1.2.1 Zinc immersion with optional copper strike (6.3).
1.2.2 Zinc immersion with neutral nickel strike (6.4).
1.2.3 Zinc immersion with acetate-buffered, nickel glycolate strike (6.5).
1.2.4 Zinc immersion with acid or alkaline electroless nickel strike.
1.2.5 Tin immersion with bronze strike (6.6).
1.3 From the processing point of view, these procedures are expected to give deposits on aluminum alloys that are approximately equivalent with respect to adherence. Corrosion performance is affected by many factors, however, including the procedure used to prepare the aluminum alloy for electroplating.
1.4 This guide is intended to aid electroplaters in preparing aluminum and its alloys for electroplating.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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. For specific precautionary statements see Section 7 and Appendix X1.
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.
ASTM B253-11(2017) Referenced Document
ASTM B179 Standard Specification for Aluminum Alloys in Ingot and Molten Forms for Castings from All Casting Processes
ASTM B209 Standard Specification for Aluminum and Aluminum- Alloy Sheet and Plate
ASTM B209M Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate (Metric)*, 2024-04-22 Update
ASTM B221 Standard Specification for Aluminum-Alloy Extruded Bars, Rods, Wire, Shapes, and Tubes
ASTM B221M Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes (Metric)*, 2021-09-01 Update
ASTM B322 Standard Guide for Cleaning Metals Prior to Electroplating*, 2020-11-01 Update
ASTM B432 Standard Specification for Copper and Copper Alloy Clad Steel Plate
ASTM B85 Standard Specification for Aluminum-Alloy Die Castings
ASTM E527 Standard Practice for Numbering Metals and Alloys (UNS)
ASTM B253-11(2017) history
2022ASTM B253-11(2022) Standard Guide for Preparation of Aluminum Alloys for Electroplating
2017ASTM B253-11(2017) Standard Guide for Preparation of Aluminum Alloys for Electroplating
2011ASTM B253-11 Standard Guide for Preparation of Aluminum Alloys for Electroplating
1987ASTM B253-87(2010) Standard Guide for Preparation of Aluminum Alloys for Electroplating
1987ASTM B253-87(2005)e1 Standard Guide for Preparation of Aluminum Alloys for Electroplating
1987ASTM B253-87(1999)e1 Standard Guide for Preparation of Aluminum Alloys for Electroplating