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Stainless Steel 440B is made up of high carbon, 16–18% chromium, along with small amounts of manganese, silicon, and molybdenum. The elevated carbon content significantly boosts hardness and tensile strength after heat treatment. It boasts a tensile strength range of 750–1100 MPa and excellent edge-retention properties. 440B also shows good wear resistance and moderate corrosion resistance, particularly in hardened and tempered states. Its mechanical characteristics make it ideal for precision components that require high durability, superior strength, and reliable performance in abrasive and mechanically stressful environments.
Stainless Steel 440B Sheet and Plates is a high carbon, chromium-based alloy known for its excellent toughness, strength and corrosion resistance. Its composition contains about 16-18% chromium, 0.75-1.00% carbon, and traces of manganese, silicon and phosphorus. This combination gives the 440B exceptional resistance to corrosion, oxidation and high temperatures. Mechanical properties of stainless steel 440B include tensile strength of 700-850 MPa, yield strength of 205 MPa and strength up to 58 HRC Ideal for applications requiring corrosion resistance and strength high quality, such as valves, shafts and tools.
| Specifications | ASTM A240 / ASME SA240 |
|---|---|
| Width | 1000mm / 1219mm /1250mm / 1500mm / 2000mm |
| Length | 2000 mm / 2440 mm / 2500 mm / 3000 mm / 6000 mm |
| Thickness | 0.1mm to 12 mm Thk |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form | Coils, Foils, Rolls, Plain Sheet, Strip, Flats, Blank (Circle), Ring (Flange) etc. |
| Grade | C | Mn | Si | P | S | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 440B | 0.6 -0.75 | 1.00 max | 1.00 max | 0.04 max | 0.030 max | 16.00 -18.00 | – |
| Tempering Temperature (°C) | Tensile Strengtd (MPa) | Yield Strengtd 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell (HR C) | Impact Charpy V (J) |
|---|---|---|---|---|---|
| Annealed* | 758 | 448 | 14 | 269HB max | – |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 316 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
| Grade | DIN | UNS | EN |
| 440B | 1.4112 | S44003 | X90CrMoV18 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Nizar Sheets and Plates based in Amman, Jordan, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
Stainless Steel 440B Sheet and Plates has exceptional hardness, strength and wear resistance, making it ideal for heavy-duty applications Its high chromium content (16-18%) ensures excellent corrosion and oxidation resistance even in harsh environments. The alloy retains good strength at high temperatures and provides good abrasion resistance, making it suitable for use in tool making, valves and machine parts Stainless steel 440B is also highly versatile, for easy machining and polishing, go with profitability in automotive, aerospace and construction Increases.
Yes, we offer custom sizes for Stainless Steel 440B Sheet and Plates to meet specific project needs. Our team at Nizar Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
Stainless Steel 440B Sheets and Plates are extensively utilized in industries that require components with exceptional hardness and wear resistance. They are often found in the production of cutlery, surgical instruments, industrial blades, and cutting tools. Their high strength and durability also make them perfect for valve parts, pump components, bearings, and precision mechanical parts. In engineering applications, 440B sheets and plates are employed for shafts, molds, dies, and wear-resistant structural components. Their outstanding performance under stress and abrasion makes them a reliable choice in various demanding applications.
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