When it comes to steel sheets, electrogalvanized and galvanised steel sheets are two popular options in industries such as construction, automobile, electronic, marine and engineering. Both have distinct characteristics and advantages, making it crucial to understand their differences and select the best option for your specific project requirements.
Electrogalvanized Steel Sheets
Electrogalvanized steel sheets are steel sheets that have been electroplated with a protective layer of zinc. An electric current is used to apply a thin layer of zinc to the surface of the steel sheet during this process.
The electroplating process provides a uniform coating thickness across the entire surface of the steel sheet. This precision is especially important in applications that require a specific coating thickness for optimal performance. Electrogalvanized steel sheets are extremely resistant to corrosion. The zinc coating serves as a sacrificial layer, protecting the steel from moisture and corrosion. Even if the surface is scratched or damaged, the zinc layer corrodes first, preventing rust and corrosion of the underlying steel.
Galvanized Steel Sheets
Galvanised steel sheets are steel sheets that have been galvanised, or coated with a layer of zinc. The galvanization process involves immersing steel sheets in molten zinc baths, allowing the zinc to adhere to the steel’s surface and form a protective coating.
Galvanised steel sheets have a consistent and even coating across the entire surface of the sheet, providing dependable and long-lasting corrosion protection. The zinc coating on galvanised steel sheets creates a physical barrier that protects steel from corrosive elements like moisture, oxygen, and chemicals. This layer of protection significantly increases the steel sheets’ lifespan, making them highly durable and resistant to rust and corrosion.
Factors to Consider When Choosing
Corrosion Resistance
Because of the uniform and controlled application of the zinc coating, electrogalvanized steel sheets have excellent corrosion resistance. Galvanised steel sheets, on the other hand, have a high corrosion resistance due to the thick and durable zinc layer that covers the steel surface. However, it is important to note that factors such as exposure to harsh environments, abrasion, and the presence of corrosive substances can all affect the longevity of the protective coating.
Appearance and Aesthetics
Because of the controlled process of coating application, electrogalvanized steel sheets typically have a smoother and more uniform appearance. They frequently have a smooth and consistent metallic sheen. Galvanised steel sheets, on the other hand, may have a slightly rougher texture and a spangled or mottled appearance due to molten zinc solidifying on the steel surface during the galvanization process. The choice between the two may be influenced by the desired aesthetic outcome or the project’s specific design requirements.
Cost and Budget Considerations
Electrogalvanized steel sheets are more expensive than galvanised steel sheets due to the additional processing required in their manufacture. The electrogalvanizing process necessitates the use of electricity as well as specialised equipment, which raises the manufacturing cost. Galvanised steel sheets, the more traditional method of coating application, are more cost-effective in general.
Choose the Right Option with HiMetal
When faced with the decision of which option to choose, it is strongly advised to seek advice from professionals or suppliers who specialise in steel products. HiMetal, a reputable supplier of both electrogalvanized and galvanised steel sheets can provide personalised guidance and assist you in selecting the best option for your needs.
Our dedication to on-time delivery, high-quality products, and competitive pricing positions us as a dependable partner for all of your steel sheet requirements. Contact us today to begin your journey towards realising your project success.