Structural Galvanizing

Structural galvanizing, also known as hot-dip galvanizing, is a widely used process for applying a protective zinc coating to structural steel. It offers exceptional corrosion resistance, durability, and longevity, making it a preferred choice for various applications in the construction industry. In this article, we will explore the details of structural galvanizing, its benefits, and its applications.

The Process

Structural galvanizing involves immersing steel structures or components in a bath of molten zinc. The steel is first cleaned to remove any contaminants and then immersed in the zinc bath, typically heated to a temperature of around 450°C (840°F). As the steel is submerged, a metallurgical reaction occurs between the zinc and the iron in the steel, resulting in the formation of a series of zinc-iron alloy layers. This creates a tightly bonded zinc coating on the surface of the steel.

Benefits of Structural Galvanizing

Superior Corrosion Protection - The zinc coating acts as a barrier, protecting the underlying steel from corrosion. It provides excellent resistance against rust, atmospheric conditions, moisture, and various environmental factors, thereby extending the lifespan of the structure.

Complete Coverage: Structural galvanizing ensures complete coverage of the steel, including all surfaces, edges, corners, and hidden areas that are often difficult to access or coat with other methods. This comprehensive coating eliminates vulnerable spots and ensures uniform protection across the entire structure.

Durability and Longevity - The zinc coating applied through structural galvanizing is highly durable and resistant to mechanical damage. It can withstand abrasion, impacts, and handling during transportation and installation, making it an ideal choice for long-lasting structures.

Low Maintenance - Galvanized structures require minimal maintenance throughout their service life. The protective zinc coating significantly reduces the need for repainting or additional surface treatments, resulting in lower maintenance costs and fewer disruptions.

Cost-Effective: Structural galvanizing offers cost advantages over other corrosion protection methods. It is a one-time investment that provides long-term protection, eliminating the need for frequent recoating or replacement. The extended lifespan of galvanized structures contributes to overall cost savings.

Applications of Structural Galvanizing

Building and Infrastructure - Structural galvanizing is widely used in the construction industry for various applications, including steel beams, columns, roof trusses, guardrails, bridges, transmission towers, and building facades. The corrosion resistance and durability of galvanized steel ensure the structural integrity and safety of these elements.

Industrial Facilities - Galvanized steel is commonly employed in industrial facilities such as factories, warehouses, and manufacturing plants. It provides robust protection against chemical fumes, airborne pollutants, and other environmental factors that can cause corrosion in steel structures.

Transportation and Infrastructure - Structural galvanizing is essential for transportation infrastructure, including highway sign structures, traffic signal poles, sound barriers, and railway bridges. The corrosion resistance of galvanized steel ensures the longevity and safety of these critical transportation components.

Water and Wastewater Treatment - Galvanized steel is extensively used in water and wastewater treatment facilities, where it is exposed to moisture, chemicals, and harsh environments. Galvanized structures, such as pipes, tanks, and support systems, offer excellent corrosion protection, extending the lifespan of these vital infrastructure components.

Recreational and Outdoor Structures - Galvanized steel is employed in various recreational and outdoor structures, including playground equipment, sports facilities, park benches, and light poles. The corrosion resistance and low maintenance requirements of galvanized steel make it suitable for enduring outdoor conditions and heavy use.

In conclusion, structural galvanizing is a highly effective method for providing corrosion protection to steel structures and components. Its advantages, such as superior corrosion resistance, complete coverage, durability, and cost-effectiveness, have


The Arkinstall Approach

We have built solid partnerships over the many years we have been trading to give us assess to shot blasting, powder coating, larger galvanizing facilities, spin galvanizers and transport companies. Arkinstall have built an enviable reputation for Hot Dip Galvanizing based on more than 120 years experience and as privately owned company, we can offer a highly personalised service tailored to meet your galvanizing requirements.

Arkinstall realise that in today’s competitive environment, companies expect the best possible service from their suppliers. Therefore, we tailor our services to suit the exacting needs of our customers, with over 50% of the goods we produce being processed and dispatched inside of 24 hours.


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    safeguarding steel with enduring protection.

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    immersing steel in a molten bath of durability.

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Hot Dip Galvanizer

We have an inhouse capability of up to 4m x 1.7m x 2.4m but can accommodate much larger items that can be processed through our partner facilities.

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100+ years industry

As leading galvanizing experts, we pride ourselves on offering you the highest quality finished products, customer service, help and advice.

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As the UK's leading hot dip galvanizer, offering a same day or next day service, there is no job too big or too small. Over 75% of our work is in and out within 24 hours

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