904L stainless steel is a high-alloy austenitic stainless steel with a high nickel and chromium content, offering excellent corrosion resistance in various environments. Known for its resistance to pitting and stress corrosion cracking, it also contains additions of copper and molybdenum for enhanced corrosion resistance, particularly in sulfuric and phosphoric acid conditions. 904L is highly weldable and formable, making it suitable for severe corrosive environments like chemical processing, oil and gas exploration, pollution control equipment, and seawater equipment. Its superior corrosion resistance also makes it ideal for pharmaceutical and food processing applications where high sanitation standards are required.

430 stainless steel is a ferritic, low carbon stainless steel with good corrosion resistance and formability, coupled with useful mechanical properties. Its chromium content provides resistance to atmospheric corrosion and moderate resistance against many acids and bases. It is magnetic and has moderate thermal expansion. 430 stainless steel is often used in automotive trim, interior architecture, household appliances, and fuel burner parts. Due to its resistance to nitric acid and organic acids, it's also used in certain chemical applications. This grade is known for its aesthetic appeal, making it a popular choice for visually exposed applications where corrosion resistance and formability are essential.

304 stainless steel is an austenitic grade known for its excellent corrosion resistance, formability, and weldability. Comprising 18% chromium and 8% nickel, it offers good strength and durability, making it a versatile material for various applications. Resistant to most oxidizing acids, 304 stainless steel is widely used in food processing and handling, kitchen equipment, architectural paneling, and chemical containers. Their ability to withstand atmospheric corrosion, coupled with their ease of cleaning, also makes them suitable for medical and pharmaceutical applications. This grade's balanced properties ensure its prominence in both industrial and domestic settings.

201 stainless steel is a lower-cost alternative to traditional chromium-nickel austenitic stainless steels such as 304. Containing a higher percentage of manganese and nitrogen, it offers moderate corrosion resistance and higher yield strength. 201 stainless steel is less resistant to corrosion than 300 series alloys and can be susceptible to pitting in chloride environments. It's widely used for decorative applications like architectural trims, automotive trim, and kitchen equipment. Additionally, its formability makes it suitable for various manufacturing processes, including deep drawing. 201 stainless steel is a common choice for budget-conscious projects where moderate corrosion resistance and aesthetic appeal are important.

301 stainless steel is an austenitic chromium-nickel stainless steel known for its high strength and excellent corrosion resistance. It is particularly notable for its ability to undergo substantial hardening through cold working. 301 stainless steel offers good weldability and formability, making it suitable for various applications. They are commonly used in transportation, architectural, and structural applications due to their durability and flexibility. This steel is also utilized in the manufacturing of automotive parts, industrial equipment, and in situations requiring a combination of strength, ductility, and resistance to corrosion. Its versatility makes it a popular choice in diverse industries.

316 stainless steel is an austenitic chromium-nickel stainless steel enhanced with molybdenum, which increases its resistance to corrosion, especially against chlorides and other industrial solvents. This grade is known for its superior corrosion resistance, making it ideal for use in marine environments and in applications involving exposure to corrosive elements. 316 stainless steel offers excellent weldability and formability, and is commonly used in food processing equipment, chemical containers, medical devices, and marine hardware. Its robustness against corrosion also makes it suitable for pharmaceutical and photographic industries. 316's durability and resistance to corrosion make it a prime choice for demanding applications.

321 stainless steel is an austenitic chromium-nickel steel alloyed with titanium, which enhances its resistance to intergranular corrosion. It maintains stability in chromium carbide forming conditions, such as prolonged exposure to high temperatures. Resistant to scaling and oxidation in environments up to 900°C, 321 stainless steel is ideal for applications with intermittent heating within the carbide precipitation range. Commonly used in aerospace components, exhaust manifolds, heat exchangers, and expansion joints, this grade is also favored in the chemical processing industry. 321's resistance to high-temperature corrosion and its overall durability make it well-suited for challenging industrial uses.

310S stainless steel is a high chromium and nickel austenitic stainless steel known for its excellent heat resistance. It maintains good strength and oxidation resistance at temperatures up to 2000°F (1093°C). The low carbon content of 310S minimizes carbide precipitation during welding, enhancing its high-temperature properties. This grade is commonly used in furnace parts, heat exchangers, and high-temperature containers. Its exceptional resistance to thermal shock and corrosion also makes 310S stainless steel suitable for petrochemical, chemical, and environmental engineering applications. This material is particularly valued in industries where high-temperature strength and corrosion resistance are crucial.

2205 stainless steel, a duplex stainless steel, combines austenitic and ferritic qualities, offering superior strength and excellent corrosion resistance, especially against pitting and crevice corrosion. Comprising about 22% chromium, 5% nickel, and 3% molybdenum, it exhibits higher resistance to corrosion and cracking than traditional austenitic grades. Ideal for harsh chloride environments, such as in marine, oil and gas industries, and chemical processing, 2205 is also used in pollution control equipment and high-strength structural components. This grade’s blend of strength and resistance to corrosion makes it a preferred choice for challenging industrial applications requiring durability and longevity.