Galvanneal steel is a coated steel specially treated to improve corrosion resistance and paint adhesion. It is created through a two-step process involving galvanizing and annealing. First, the base steel undergoes a galvanizing process, where it is coated with a zinc layer. Then, it is subjected to an annealing procedure which heats the steel to a specific temperature before cooling it slowly.
The galvanneal coating typically has a matte gray appearance, distinguishing it from regular galvanized steel with a bright, shiny surface. The coating thickness can differ based on the application and specific requirements, but it is generally thinner than a typical hot-dip galvanized surface.
Here are examples of the most common applications of galvanneal steel:
1. Automotive Parts
Automotive chassis components — including frame rails, cross members, and underbody reinforcements — are often manufactured using galvanneal steel coils. These parts are subjected to severe conditions, including moisture, gravel, and road debris exposure. The galvanneal coating helps protect these components from corrosion and enhances their durability.
Zeeco Metals offers galvannealed carbon steel specifically designed to manufacture automotive parts and components. It is a popular choice for OEM facilities engaged in stamping and roll forming processes, as it meets the specific requirements of these applications.
2. Construction Projects
Steel is well-suited for modular and prefabricated construction due to its strength, durability, and ease of assembly. Its galvanneal coating protects the component during transportation, installation, and throughout the building’s lifespan. This makes it popular in constructing modular buildings, prefabricated walls, and structural systems.
Galvannealed carbon steel is particularly utilized to fabricate building components, including doors, window frames, and curtain wall systems. Its formability allows for intricate designs and precise manufacturing, ensuring seamless integration and functionality within the building envelope.
3. HVAC Systems
In HVAC systems, a galvanneal steel coil is often used for manufacturing air conditioning units, heat exchangers, ductwork, and other components. Its corrosion resistance helps prolong the HVAC equipment’s lifespan, especially in environments where moisture may be present. Additionally, the paint adhesion properties make applying a protective coating or a specific color to the components easier.
4. Electrical Enclosures
Junction boxes and other enclosures are used for electrical connections in various applications, including commercial and industrial settings. Galvannealed carbon steel is an excellent material for these containers because they offer superior corrosion resistance. This helps protect the electrical connections from moisture, dust, and corrosive substances.
The galvanneal steel surface also acts as an extra layer of protection, shielding sensitive electronics from the corrosive agents present in the environment. This feature is crucial in chemical processing, oil and gas, and wastewater treatment plants.
5. Agricultural Equipment
Most agricultural machines and tools operate in demanding conditions and are exposed to chemical, soil, and water elements. The steel’s corrosion resistance and protective coating ensure that farm machinery remains durable and functional, even after prolonged exposure to these conditions. It is also beneficial in ensuring that grain bins and silos can withstand the rigors of long-term storage.
Due to its durability, galvannealed carbon steel is also an excellent choice for agricultural fencing and livestock enclosures. Steel fences and plant barracks can endure the impacts of outdoor elements, such as wind, rain, and extreme temperatures.
6. Road Signs and Traffic Structures
Galvannealed carbon steel is extensively used in manufacturing road signs, traffic signal poles, guardrails, and other transportation infrastructure projects. It allows them to thrive in harsh weather, road salt, and environmental toxic substances. It also guarantees that road signs are visible, structurally solid, and safe for long periods.
Choose Zeeco Metals Galvanneal and Electrogalvanized Steel Solutions
Zeeco Metals is a trusted supplier of top-notch electrogalvanized steel coils! Our extensive inventory of products caters to a wide range of needs, offering various gauges to suit different applications. Whether you need steel for automotive components, construction materials, or other tasks, we have the right steel grades to fulfill your needs.
Contact us today to discuss your project needs! You can also browse our product catalog to learn more about our extensive selection of galvannealed carbon steel.