The Water Heater Anode Rod
The role of the sacrificial anode rod
The anode rod is the most important factor in determining the
working life of your water heater. An anode rod is a steel core
wire surrounded with one of three different metals.
These metals include aluminum, magnesium, and zinc.
The rod is screwed into the top of your water heater and protects
your water heater from rusting.
When the tank is filled with water the anode rod sacrifices itself
to protect the exposed steel of the water heater, through a method
called electrolysis. Electrolysis happens when there are two pieces
of metal connected inside of water, the process makes the anode rod
corrode in place of the exposed steel in your water heater. During
this process the more noble (less reactive) metal will corrode over
the less (more reactive) noble metal. Aluminum, magnesium, and zinc
are all much less noble than steel, meaning they will corrode
before the steel, which is why they are used for anode rods.
Standard : ASTM G-97
Chemical compositions of cast magnesium anode (%)
Electrochemical Properties of cast magnesium anodes
Note: Open and Close-circuit voltage is relative to Saturated
Calomel Electrode (SCE)
Company Brief Introduction:
We are a professional anode supplier over 16 years ,mainly supply:
* Zinc anodes (ASTM B418-95 US MILL 18001K)
* Al-Zn-In anodes (GAIII)
* Magnesium anodes ( ASTM-G97)
* High silicon cast iron anodes ( ASTM-A518-3,BS1591)
Our anodes are shipped worldwide especial main to North America,
Asia etc., around 5000mt per year. Our goods are regularly tested
by independent third party lab in USA to keep anode continuous high
quality. Our plant owns raw material resources ore, so we can
supply very good price with service for you.
We can also accept customized anodes with your logo according to
your drawing !
Office, Workshop, Inspection Lab:
Our Belief: Continuous Innovation.
Our Spirit: Sincerity, Unity, Dedicated, Hardworking.
Our Mission: Provide most advanced products & most professional
China Hunan High Broad New Material Co.Ltd.
70 Chezhan North Road,Changsha, China 410100