Zinc Rod Description
Zinc metal is a lustrous and corrosion‐resistant material that is readily formable. It is completely recyclable and produced by an environmentally friendly method. Zinc is recognised as one of the essential minerals beneficial to health.

Zinc Rod Specification
Chemical Composition (%)
|
Zn
|
Cd
|
Cu
|
Fe
|
Pb
|
Sn
|
Total Non-Zinc
|
Nominal Value
|
≥99.99
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≤0.005
|
≤0.002
|
≤0.003
|
≤0.001
|
≤0.001
|
0.005
|
Actual Value
|
99.9977
|
0.0004
|
0.0001
|
0.0002
|
0.0014
|
0.0001
|
0.0023
|
Physical Properties
Property
|
Specification
|
Melting Point
|
419 °C
|
Boiling Point
|
907 °C
|
Thermal Expansion
|
30.2 µm m⁻¹ K⁻¹ at 25 °C
|
Poisson's Ratio
|
0.25
|
Elastic Modulus
|
108 GPa
|
Tensile Strength MPa
|
115±10 MPa
|
Elongation %
|
45±5 %
|
Thermal Conductivity
|
1.16 W/cm/K at 298.2 K
|
Electronegativity
|
1.6 Pauling
|
Specific Heat
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0.0928 cal/g/K at 25 °C
|
Heat of Vapourisation
|
27.4 kcal/g-atom at 907 °C
|
Heat of Fusion
|
1.595 kcal/mol
|
Specifications
Diameter (mm)
|
Length
|
Thickness Tolerance (mm)
|
Min. 10
|
Min. 200
|
± 0.1
|
Max. 200
|
Max. 1000
|
± 0.1
|
Custom products are available upon request.
Applications of Zinc Rods
Zinc metal is used in maritime engineering, including steel piles, floating docks, bridges, ballast tanks, submarine pipelines, locks and underwater wire ropes. It is also applied in offshore platform engineering, port infrastructure, marine technology installations, underground cables, underground oil and gas pipelines, oil production housings, tank walls, bridge foundations, reactor vessels, concrete foundations, heat exchangers, water-gas systems, box-type coolers, water supply inner walls, pumps, compressors, chemical towers, containers and storage tanks.
Zinc Rod Packaging
Our product is clearly marked and labelled externally to facilitate efficient identification and quality control. Care is taken during storage or transport to prevent any damage.
FAQs on Zinc Rods
Q1. How do zinc rods function in cathodic protection?
Zinc rods function as sacrificial anodes. They corrode in place of the protected metal structure. When they are electrically connected to the structure, the rods provide electrons to the metal, thereby reducing the corrosion rate by shifting the electrochemical potential to a more negative value.
Q2. What types of zinc rods are available?
Zinc rods are available in various sizes and purity levels. The standard purity for cathodic protection applications is typically 99.99% zinc. The rods vary in diameter and length depending on the specific requirements of the application.
Q3. How are zinc rods installed for cathodic protection?
Zinc rods are typically attached to the protected metal structure either by welding or bolting. They are then electrically connected to the structure to ensure adequate conductivity. The rods are installed at locations where they can be easily inspected and replaced if necessary.
Specification
Diameter (mm)
|
Length
|
Thickness Tolerance (mm)
|
Min. 10
|
Min. 200
|
+/- 0.1
|
Max. 200
|
Max. 1000
|
+/- 0.1
|
Customized products are also available upon request.
Applications:
Zinc metal is widely applied to shipping, steel pile, floating dock, bridge, ballast tank, submarine pipeline, sluice, underwater wire rope etc. The offshore platform has great use of Zinc metal, such as port engineering and marine engineering facilities, underground cables, underground oil and gas pipelines, oil well casing, tank wall, bridge foundation, reaction kettle, concrete foundation, heat exchanger, complex water gas, box type cooler, water pipe inner wall, pump, compressor, chemical tower, container, storage tank, etc.
Packing:
Our product is clearly tagged and labeled externally to ensure efficient identification and quality control. Great care is taken to avoid any damage which might be caused