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Harsh Metalloys, located in Mumbai, India, has made a name for itself as a leading manufacturer and supplier of top-notch Stainless Steel 304H Sheets and Plates. These products are celebrated for their remarkable high-temperature strength and outstanding corrosion resistance, making them a go-to choice in industries where performance under heat is essential. Crafted to comply with international standards like ASTM and JIS, these sheets and plates are perfect for demanding environments such as power plants, petrochemical sectors, and boilers. Harsh Metalloys is committed to delivering precise dimensions, high-quality finishes, and prompt service to meet the diverse needs of industries both in India and around the globe.
When it comes to the composition and mechanical properties of Stainless Steel 304H Sheets and Plates, you’ll find a chemical makeup that includes Chromium (18–20%), Nickel (8–12%), and a higher Carbon content (0.04–0.10%) compared to standard 304. This increased carbon enhances tensile strength, which typically hovers around 620 MPa, and yield strength close to 275 MPa, all while ensuring good elongation of about 40%. Additionally, it contains Manganese (≤2%), Silicon (≤1%), Phosphorus (≤0.045%), and Sulfur (≤0.03%). This unique composition not only boosts mechanical strength at high temperatures but also provides excellent oxidation resistance and good formability, making 304H sheets and plates perfect for high-temperature structural applications.
| 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), Galvanized etc. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 10.5 | – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
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They come in dimensions ranging from 3mm up to 150mm thick, and up to 2000mm wide. Hot-rolled sheets are excellent in strength, ideal for structural applications.
Cold-rolled sheets have a thickness of between 0.3mm to 6mm, and their widths can reach up to 1500mm. They can give a fine surface finish, as well as very accurate dimensioning, perfect for precision applications and fabrication.
These sheets range from 1mm to 12mm in thickness. The texture on them is what gives them their anti-slip surface. They are mainly used in flooring and industrial platforms.
These sheets mainly range between 0.3mm and 12mm in thickness. Due to the uniform perforations, they are widely applied in applications such as filtration, ventilation, and decorative purposes.
The range in thicknesses for these thin sheets varies from 0.05mm to 3mm and finds applications in precise adjustments and alignment during a machinery component or structural component.
Polished sheets are available from a thickness of 0.3mm to 6mm, providing a reflective finish, and find applications in aesthetic applications and architectural designs.
Stainless Steel 304H Sheets and Plates are widely utilized in power generation plants, petrochemical industries, boilers, and heat exchangers because they can handle high temperatures and resist corrosive environments. Their exceptional strength and resistance to oxidation make them ideal for furnace components, pressure vessels, and heat-resistant structural parts. You’ll also find these sheets and plates in the aerospace and automotive industries, where maintaining thermal stability is crucial. Plus, they’re commonly used in chemical processing equipment and other applications that demand durability and dependable performance under thermal stress, ensuring they last a long time even in tough industrial settings.
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