Stainless Steel Storage Tanks

For more than fifty years, Tate Metalworks, Inc. has been an industry leading supplier of both API-650 and API-620 storage tanks and ASME pressure vessels fabricated and erected from stainless steel materials. Our stainless steel storage tanks and pressure vessels can be found in near limitless applications and industries throughout the United States and the world. We have supplied storage and process solutions to the specialty chemicals, plastic recycling, petrochemical, petroleum, pulp and paper, minerals and mining, lithium production, power generation, pharmaceutical, food and beverage industries, and many more. Our expertise is not only the welding of the material but the handling, cleaning, and erection of the stainless steel tanks to safeguard the material’s corrosion resistance properties and assure our clients years of reliable process serviceability.

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Key Factors to Stainless Steel's Corrosion Resistance

• Chromium content: Stainless steel contains a significant amount of chromium (typically at least 10.5%), which forms a passive oxide layer on the surface of the material. This oxide layer is extremely thin (only a few nanometers thick) but dense and stable, preventing further oxidation and corrosion of the underlying metal.
• Passivation: When stainless steel is exposed to oxygen-rich environments, such as air or water, the chromium in the alloy reacts with oxygen to form this protective oxide layer. This process is called passivation and occurs naturally, enhancing the material's corrosion resistance.
• Other alloying elements: Besides chromium, stainless steel often includes other alloying elements such as nickel, molybdenum, and sometimes nitrogen. These elements can further enhance corrosion resistance, particularly in harsh environments or when exposed to specific corrosive substances.
• Types of stainless steel: There are different grades and types of stainless steel, each tailored for specific applications based on their alloy composition. For instance, austenitic stainless steels (such as 304 and 316 grades) are highly corrosion-resistant and widely used in industries like food processing, pharmaceuticals, and marine environments.
• Resistance to specific corrosive agents: Stainless steel exhibits resistance to various corrosive agents, including acids, alkalis, chloride solutions (saltwater), and atmospheric conditions. The exact resistance depends on the specific alloy composition and environmental conditions.
• Surface finish: The surface finish of stainless steel can affect its corrosion resistance. Smooth, polished surfaces are generally more resistant to corrosion than rough surfaces because they minimize opportunities for corrosion initiation and facilitate easier cleaning.

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