Zinc Anodes

• Zinc Tank Anodes are used to complement the coating at areas of exposed steel prolonging the life of the coating and structure. Hydrogen is evolved from zinc anodes and thermite sparking may occur when light alloys impact on rusty steel. Therefore there is a height restriction in cargo/ballast tanks in tankers that anodes are not located at a height (in m) greater than 27/W where W is the total mass (in kg) of the anode and insert.
• Zinc anodes has been used as a sacrificial anode material in seawater since 1824, when Sir Humphery Davy used zinc blocks to prevent corrosion of the copper cladding on the hulls of British warships.
• Modern zinc anodes used for cathodic protection are cast from high purity zinc (99.995 %) alloyed with aluminium and silicon to combat impurities and cadmium to give uniform dissolution with loose dispersible corrosion products.
• The most widely used specification for zinc anodes is US Mil Spec 18001J are the most widely used, for cathodic protection.

• Zinc anodes of other compositions are also manufactured by us to suit individual requirements
• Zinc anodes perform reliably in water and mud with resistivities up to 1000 Ohm cm and have a driving potential of 250 mV against protected steel at normal ambient seawater temperatures. This driving potential reduces as the temperature rises and zinc should not be used where temperatures above +50 Deg C are likely to occur.

Composition:

• Precise dimensions
• Durable built
• Perfect finish

• Engine heat exchangers have a common problem of corrosion due to the difference in metal between casing and tube stack. Employing zinc pencil anodes reduces the corrosion on the casing prolonging the life of both casing and tube stack whilst in seawater. Zinc is the only material that has an official specification, the American MIL-A-18001 K spec. Zinc is a well-proven anode material and its capacity is virtually unaffected by the operating current density, although the driving voltage diminishes with increasing temperature therefore it has limited application. If zinc is not to this specification i.e. high purity zinc 99.99%, it will have a limited use as an anode material because of iron present as an impurity.
• We manufacture equivalent engine anodes to suit Volvo Penta, General Motors, Aifo, Caterpillar, Onan, Cummins, Bukh, Mitsubishi, Scania, Baudouin, Lombardini, VM, Ford, Isotta Fraschini, Renault, Nanni Mercedes, BMW, Ruggeri, Kelvin Engines and Yanmar.We have integrated our experience and available resources effectively to manufacture and export a large collection of Zinc Anodes. Each and every range is strictly tested in different parameters to ensure excellent quality features. Our range is capable to render the diversified demands of several industries. Our clients can access them at the industry leading prices from the markets.
• Zinc Engine Anode manufactured using superior quality raw material, which is sourced from the trusted vendors in the market. These products are developed with employing advanced facilities for the better future results and high performance of the products.

Following Are The Features:

• Smooth finish
• Excellent performance
• High strength
• Corrosion-resistance
• Longer life

• Patch repairs
• Bridge widening
• Joints between new/existing concrete
• Slab replacement
• Expansion joint repair
• Pre-stressed concrete
• Post-tensioning anchors
• Repair of epoxy-coated rebar

• Aluminum Anodes are used to complement the coating at areas of exposed steel prolonging the life of the coating and structure. Hydrogen is evolved from aluminium anodes and thermite sparking may occur when light alloys impact on rusty steel. Therefore there is a height restriction in cargo/ballast tanks in tankers that anodes are not located at a height (in m) greater than 27/W where W is the total mass (in kg) of the anode and insert.
• Aluminum alloy anodes can be used for the protection of storage tanks and are frequently installed on ship hulls and jetties. They also have a particular use in the protection of sub sea pipelines, oilrigs and semi-submersibles.
• The electrochemical performance of aluminum makes it an attractive galvanic anode material, especially in low resistivity applications such as seawater. Compared to magnesium, aluminum's lower driving potential and high current capacity per pound make it an excellent choice for long life saline cathodic protection systems.

In addition to the standard compositions mentioned above, Rajesh Metal Syndicate also manufactured to other compositions to suit the requirements of various sites and structures.

Composition and Characteristics:

• Silicon: 0.08 -0.2 %
• Indium: 0.01 – 0.02 %
• Others: 0.02 max
• Aluminium: Remainder