As a trusted supplier of cathodic protection materials, KIG Tech provides a wide range of sacrificial anode rods — including magnesium alloys (AZ31 / AZ63 / AZ91) and aluminum alloy rods — specifically designed to protect residential and commercial water heaters from internal corrosion. KIG has already supported several European and American distributors during their early stages with small order quantities, helping them grow into major suppliers.

Water heaters, especially in areas with highly corrosive or hard water, face long-term corrosion challenges. When exposed to oxygen and mineral-rich water, steel tanks can begin to degrade over time, reducing the water heater’s efficiency and safety.

One of the most effective and proven methods to mitigate this damage is the use of sacrificial anode rods. At KIG Tech, we primarily use AZ31 and AZ63 magnesium alloys to manufacture high-quality anodes designed to deliver excellent electrochemical performance under various water conditions.

⚙️ Key Features of KIG Magnesium Anode Rods

🔋 Superior Electrochemical Activity
Our rods are made from AZ63 and AZ31 alloys, both known for their high driving voltage. These anodes corrode preferentially, sacrificing themselves to protect the steel tank — the core principle of cathodic protection.
With a low electrode potential (typically -1.5V to -1.6V vs. Cu/CuSO₄), they offer early and proactive corrosion control inside water heater tanks.

🔩 Customizable Thread and Nut Options

• Standard thread: 3/4" NPT, compatible with most residential and commercial heaters.
• Nut materials:
• Carbon steel (standard)
• Galvanized steel, stainless steel, or brass (customizable)
• Thread type and rod length can be tailored to specific brands, heater models, and installation requirements.

🔍 Why Quality Matters
Not all magnesium anodes are created equal. Low-purity alloys or poorly manufactured threads can result in poor contact, uneven current distribution, or premature failure.
At KIG Tech, we use pure magnesium ingots to ensure alloy composition meets international standards. Every anode rod is tested with advanced German-imported spectrometers and undergoes electrochemical performance testing before shipping to ensure consistent quality.

✅ Applications

• Residential electric and gas water heaters
• Commercial boilers and hot water tanks
• Solar water heating systems
• Heat pump water heaters

🏭 About KIG Tech
As a professional manufacturer of cathodic protection systems, KIG Tech supplies magnesium, zinc, and aluminum anodes, MMO products, CP accessories, and pipeline sealing materials to customers in over 30 countries. Whether you're replacing a home water heater anode or designing a complete corrosion control system for pipelines and tanks, our team — including NACE-certified engineers — is ready to assist.