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Galvanized Steel

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Galvanized steel articles are coated with one or more layers of zinc in order to improve strength and corrosion resistance in industrial, commercial and domestic applications where steel parts are exposed to corrosive materials or are in high use. Read More…

Galvanized Steel Galvanized steel articles are coated with one or more layers of zinc in order to improve strength and corrosion resistance in industrial, commercial and domestic applications where steel parts are exposed to corrosive materials or are in high use.
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Leading Manufacturers

Skokie, IL  |  847-966-3000

Block Steel Corp, ISO/TS 16949 Certified, specializes in aluminized steel and is the country’s largest aluminized steel distributor. We also stock Aluminized Stainless, Hot Dipped Galvanized, and distribute tubing.

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Block Steel Corp. $$$

Bridgeport, CT  |  800-800-4422

With seven service center located between the U.S., Canada, and Mexico, Gibbs Interwire & Steel Co., LLC has you covered wherever you are. We are an ISO 9001:2015 Certified manufacturer and distributor of strip coil and wire. We offer our products in a wide range of metals, including stainless steel, carbon steel, nickel alloy, and red metals. Our wire can come sharpened, flat, round, spring, and square. We serve numerous industries, including automotive, consumer, medical, power, environmental, and chemical.

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Gibbs Interwire & Steel Co., LLC $$$

Bridgeport, CT  |  800-221-0340

In business since 1829, Bushwick Metals is a unique and accomplished manufacturer of stainless steel tubing. Approximately 750,000 square feet of warehouse space and round the clock loading and processing of material enables us to serve well a multitude of steel products users whose requirements demand prompt service. Visit our website or call Bushwick today – for the metal you need tomorrow.

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Bushwick Metals, Inc. $$$

Belmont, NH  |  800-654-6043

The level of customer service we provide at All Metals Industries continues to set the benchmark for excellence in our industry. Our innovative metal service center specializes in a full line of flat-rolled carbon products including HRP&O, cold rolled, galvanized, galvannealed, and aluminized steel in a wide range of gauges and sizes.

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All Metals Industries, Inc. $$$

Chicago, IL  |  800-323-8443

ISO 9001:2001 certified, Lapham-Hickey Steel Corporation is a top US steel service center. Unlike other companies, we are more than the strength of our steel; we were built on the strength of our relationships and partnerships with our customers. Our success is a result of our commitment. We are committed to meeting or exceeding customer expectations and increasing customer satisfaction.

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Lapham-Hickey Steel Corporation $$$
placeholder image Block Steel Corp. Gibbs Interwire & Steel Co., LLC Bushwick Metals, Inc. All Metals Industries, Inc. Lapham-Hickey Steel Corporation

Steel, composed predominantly of iron, is among the most common alloys in the world. In addition to iron and carbon, other metallic elements are introduced to create unique alloys with application-specific properties. Galvanization enhances these qualities by forming a metallurgical bond between the steel and zinc. This not only improves tensile strength but also provides an added layer of protection. While this layer, varying in thickness from one mil to just over four mils, will eventually corrode, the damage is significantly slowed.

The application of zinc is a relatively simple and cost effective procedure, making its use popular for a variety of steel hardware and fixtures such as grills, grids, grip plates and grates, nails, braces, screws, beams, studs and even automotive paneling. A wide variety of industries make use of the prolonged lifespan of galvanized steel parts. Construction, automotive, electronic, shipbuilding, aerospace, marine, chemical and food processing, power generation, water treatment and several other applications utilize galvanization to ensure the quality and safety of finished products.

Galvanization is most often achieved through a process known as hot-dip galvanizing. Essentially, this involves bathing steel components in molten zinc. Zinc is kept liquefied at temperatures near 860°F. The metal articles, first cleaned with a light acid solution, are either dipped or fed into the zinc bath, which forms a permanent bond with the substrate materials.

When exposed to oxygen and carbon dioxide in the atmosphere, the zinc is cured and forms a layer of zinc carbonate that further protects the steel products. While traditional hot-dipping is still widely used, two additional techniques are growing in use and popularity. Electro-galvanizing passes an electric current through the zinc compound in order to create a thinner and more tightly bonded coating.

The newest development is the environmentally-friendly thermal diffusion galvanizing, which eliminates the hazardous caustic and acid baths used in traditional methods. Rather than a molten bath, zinc powder is applied to steel parts that are then sealed in a drum and processed through a rotary oven.

Zinc can be applied in single or multiple layers depending upon the steel's intended use. Each technique results in spangle, either uniform or large grain, on the finished product. Spangle is the appearance of a crystalline structure that gives the formerly shiny metals a dull grey appearance. Galvanization is most often applied to pre-formed ready-for-assembly parts, though some steel service centers provide stock shapes as well.

Galvanized Steel Informational Video