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Harsh Metalloys, based in Mumbai, India, is a renowned manufacturer and supplier of premium-quality Stainless Steel 904L Sheets and Plates. Designed for performance in extremely corrosive environments, these sheets and plates are manufactured using high-grade raw materials and state-of-the-art processing techniques. Known for their durability, weldability, and resistance to strong acids and chloride-rich conditions, 904L sheets and plates meet global standards such as ASTM B625. Harsh Metalloys offers a variety of thicknesses, widths, and surface finishes to cater to industries like chemical processing, marine, pharmaceuticals, pulp & paper, and oil & gas.
Stainless Steel 904L Sheets and Plates are composed of a high-alloy austenitic stainless steel with 19–23% Chromium, 23–28% Nickel, 4–5% Molybdenum, 1–2% Copper, and low carbon content. This formulation offers exceptional resistance to sulfuric, phosphoric, and acetic acids as well as chloride-induced corrosion. These sheets and plates exhibit tensile strength around 71 ksi (490 MPa), yield strength near 31 ksi (220 MPa), and excellent ductility with ~35% elongation. They remain non-magnetic in all conditions and are highly weldable and formable, ensuring strong performance even in aggressive, high-temperature, and high-pressure environments.
| Standard | ASTM A240, ASME SA240 |
| Thickness | 0.1mm to 12 mm Thk |
| Sheet and Plate Size | 1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x 4000 mm |
| Surface | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sandblast, Brush, etching. |
| Finish | Hot rolled (HR), Cold rolled (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated). |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| SS 904L | 0.020 max | 2 max | 1 max | 0.040 max | 0.030 max | 19 – 23 | 4 – 5 | 23 – 28 | 1 – 2 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35 % |
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904L hot rolled sheets are known for their impressive strength and resistance to corrosion, making them perfect for structural, pressure vessel, and marine applications, especially in tough environments.
When it comes to 904L cold rolled plates, you get a fantastic surface finish, precise thickness, and top-notch corrosion resistance, which are essential for chemical, pharmaceutical, and high-purity processing tasks.
If you need slip resistance and durability, 904L chequered sheets are the way to go. They’re ideal for flooring, walkways, and platforms in marine and industrial settings where corrosion is a concern.
With 904L perforated plates, you get a great combination of corrosion resistance and lightweight versatility. They’re commonly used in filtration, ventilation, acoustic panels, and decorative projects in both chemical and architectural contexts.
For precise spacing, sealing, and alignment, 904L shim sheets are your go-to. These thin, corrosion-resistant layers are perfect for marine, aerospace, and chemical equipment assemblies.
Last but not least, 904L polished plates boast a sleek, reflective finish along with excellent corrosion resistance, making them suitable for decorative, sanitary, and high-visibility industrial uses.
Stainless Steel 904L Sheets and Plates are widely used in highly corrosive applications such as chemical process equipment, acid storage tanks, heat exchangers, marine components, and pollution control systems. They are ideal for use in fertilizer plants, desalination units, pulp and paper mills, and pharmaceutical manufacturing due to their resistance to harsh acids and chlorides. These sheets and plates are also utilized in oil & gas refineries and power generation facilities for their mechanical stability and long service life. The smooth finish and hygienic properties also make them suitable for food-grade and clean-room environments.
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