Magnesium Anodes

Magnesium anodes find limited application in seawater but are extensively used in onshore projects for the protection of tanks containing fresh water and buried pipelines where the electrolyte is soil or sand. Magnesium anodes for buried pipelines, casings and similar structures are prepacked either in cotton bags or cardboard cartons.

Requirements For Chemical Composition Limits


Al      5.3 -   6.70 %                                             

Zn     2.5 –  3.50 %                                                                                    

Mn     0.15 -  0.70 %                                            

Cu      0.08 %  max                                                        

Si        0.03 %  max                                                                                        

 Fe      0.005 %  max                                                                                                         
 Ni       0.003 % max                                                                      
Mg       Remainder                                                 

Open circuit potential
( VS  Cu / CuSo  ref. cell )                                    -1.55 volt

Nominal Electrochemical capacity                       1100 / kg
in seawater                                                       

 Efficiency                                                                50 %   


ZBA-CATHODIC PROTECTION SERVICES is a privately owned company established in 1980 by mr Zymaris Vasilios. From date of inception to present the company has been involved in the manufacturing of sacrificial anodes ( Zinc, Aluminum, Magnesium ) for shipping offshore and industrial applications. Since the late 80's ZBA focused in providing innovating cathodic services in marine market.

The company's involvement in corrosion control spans all aspects of the marine sector including anodes for leisure boat market to commercial deep sea shipping and shoreline structures such as piling, jetties, lock and dock gates, pontoon systems.



Phone 1: +30 210 4612413

Phone 2: +30 210 4620977

Fax: +30 210 4616859

Email: info 

Address: Head Office: 46, Akti Kondili Str., Piraeus

Facilities: 27 Km Palea Ethniki Odo Athina-Thiva, Mandra Attikis Tel.: +30 210 5557542 FAX.: +30 210 5557839


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