ASTM-B843 Standard Specification for Magnesium Alloy Anodes for Cathodic Protection

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This specification covers the standard requirements for magnesium alloy anodes in the form of cast and extruded shapes for use in cathodic protection. Materials shall adhere to specified chemical composition requirements, the samples for analysis of which shall be taken either from the molten metal when the cast anode or extrusion ingot is poured, or from the finished anode. Anodes shall have a clean surface and be commercially free of dirt, slag, or other foreign material.




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1.1 This specification covers magnesium alloy anodes in the form of cast and extruded shapes.

1.2 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.

Significance and Use

3.1 This specification is prescriptive and not performance in nature.


cathodic protection; magnesium anodes;; ICS Number Code 77.060 (Corrosion of metals)

To find similar documents by ASTM Volume:

02.02 (Aluminum and Magnesium Alloys)

To find similar documents by classification:

25.220.40 (Metallic coatings Including electrolytic depositions, cathodic coatings, autocatalytic coatings, etc.)

77.060 (Corrosion of metals Surface treatment and coating, see 25.220)

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Document Number


Revision Level

2018(E1) EDITION



Modification Type

Editorially changed

Publication Date

May 1, 2018

Document Type


Page Count

2 pages

Committee Number