Stainless Steel Earth Rods

Importance of Stainless Steel Earth Rods


Earth rods constructed of austenitic stainless steel to British specifications. Stainless steel rods are comparable to copper rods; however, they are more anodic than copper and can be used when galvanic corrosion is a concern. In comparison to copper, the current carrying capacity of stainless-steel rods is lesser. These rods have a tapped hole on either end allowing them to be connected with a coupling dowel. If necessary, it can be given in several grades.



Stainless Steel earth rods overcome a condition of galvanic corrosion which happens due to dissimilar metals buried nearby. Solid copper rods will most likely react negatively with the buried metal, allowing corrosion. Stainless steel rods, which are more anodic than copper and resistant to corrosion, are recommended to overcome this condition. These rods are of austenitic stainless-steel grade 316, according to BS970.


Stainless Steel Earth Rod:

AXIS provides the customer with a comprehensive choice of earthing equipment that is both suitable and cost-effective.



Specification of Stainless Steel Earth Rods


Galvanized Steel Earth Rod- Unthreaded & Pointed:

These rods are made up of high strength low carbon steel and hot-dipped galvanised. This earthing rod design is truly a cost-effective choice.



Important technical aspects of Stainless-Steel Earth Rods:

It's worth noting that copper may not be suitable with some soils and landfill locations. Stainless steel is a superior option.

Where structures or components such as steel towers, poles or lead-coated cables are close to an array of ground electrodes, stainless steel earth rods may be an option. In this situation, the possibility of galvanic corrosion must be considered.

Compound for backfilling the resistivity range begins at 0.12 Ωm.

For a permanent solution to lower earth resistance, a comprehensive solution based on national and international standards IS-3043, BS-7430 & IEEE-80, IEC 62561-7 (for backfill compound), along with IEC-60364-5.

Plate, Rod, and Strip electrodes are all compatible with SSER.

For the earthing system of power plants, transformer stations, towers, communication stations, airports, railways, subway stations, high buildings, computer rooms, petrochemical plants, and oil reservoirs in moist, saline and alkaline, acid and chemical corrosion medium environments, stainless steel earthing electrode is used.

Features of SSER:

Stainless steel earth rods are internally threaded for jointing, making them ideal for situations where galvanic corrosion could occur due to dissimilar metals buried nearby.

Stainless steel earth rods are extremely corrosion resistant, and there are a variety of earth rod driving heads, spikes, dowels, and couplers available.

According to the BS EN 10088 standard, earth rods are made of stainless steel and have good corrosion resistance in adverse conditions.

Where soil conditions are more hostile, such as places with high salt concentrations, this method is used. The overall resistivity of the earth rod and system is determined by soil variables such as temperature and type, moisture content and retention.

Stainless Steel Earth Rods contain a tapped hole on each end that permits a coupling dowel to be used to connect them.

These rods are of austenitic stainless-steel grades SS304 and SS316.



Where galvanic corrosion is expected to impact Earthing rods due to incompatible metals buried near together, stainless steel Earth Rods are utilised, as copper Earthing rods are more prone to galvanic corrosion. They are used in highly corrosive soils. Pointed and sectional rods are more reliable and durable against corrosion.



Stainless steel rods are far more anodic than copper and are very resistant to corrosion.

High durability and easy to install.

Excellent electrical and thermal conductivity.

Installation is easy & the appearance is elegant.

Repeatedly withstand required current as of and when required.

Better corrosion resistance than galvanized rods with a service life of roughly 40 years in most soils.


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Read more about Earthing & Lightning Protection -

Introduction to the basics of Lightning Protection and Earthing and the Standards (IEC 62305 and UL 467)


Lightning Protection System Design and Products


Surge Protection Devices (SPD) 


Lightning Protection Zones and their Application to SPD Selection


How does a Lightning Arrester work?


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