Home > Sheet and Plates > Stainless Steel 440B Sheet and Plates
Mbemba Stainless stands out as a top-notch manufacturer and supplier of **Stainless Steel 440B Sheet and Plates** in Kinshasa, Congo. They’re known for delivering high-quality products that boast impressive strength, hardness, and resistance to corrosion. Crafted with precision and cutting-edge techniques, these sheets and plates are built to meet international standards for both performance and durability. Mbemba Stainless caters to a variety of industries, including automotive, marine, petrochemical, and aerospace. Their 440B stainless steel products are perfect for high-stress and high-temperature applications, ensuring long-lasting reliability and consistent performance in demanding industrial settings throughout Congo and beyond.
**Stainless Steel 440B Sheet and Plates** primarily consist of chromium (16–18%), carbon (0.75–0.95%), along with trace amounts of molybdenum, manganese, and silicon. This martensitic stainless steel alloy is known for its excellent hardness, tensile strength, and wear resistance, while also offering moderate corrosion resistance. It typically exhibits a tensile strength of around 700–900 MPa and a yield strength close to 450 MPa. When heat-treated, it achieves even greater hardness and durability. These characteristics make 440B sheets and plates ideal for applications that demand toughness, high mechanical strength, and stability under extreme stress.
| Specifications | ASTM A240 / ASME SA240, BS EN 10088-2, en 10028-7, IS 6911 |
|---|---|
| Plates Dimension Standard | MSRR, AMS, BS, JIS, AISI, ASTM, GB, DIN, EN, etc |
| Plates Thickness | 0.3 mm to 120 mm |
| Plates Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Plates Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Finish | 2B, 2D, BA NO (8), Cold rolled sheet (CR), Hot rolled plate (HR), SATIN (Met with Plastic Coated), No.1 finish hot rolled, 1D, 2B, No.4, BA, 8K, satin, hairline, brush, mirror etc. |
| Hardness | Half Hard, Soft, Hard, Quarter Hard, Spring Hard |
| Profiling | Plasma Plate Cutting, Laser Plate Cutting, Oxy-propane Flame Cutting |
| 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 |
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The excellent corrosion resistance provided by Stainless Steel 440B Hot Rolled Sheets ensures that it can be delivered in sizes between 3mm up to 150mm thickness, and in up to 2500mm width, for use where high strength and resistance to wear is required.
Cold-rolled stainless steel plates 440B have excellent corrosion resistance and a bright finish. These plates are available in a thickness range of 0.3mm to 6mm and widths up to 2000mm, which makes them ideal for precision applications that require tight tolerances.
Stainless Steel 440B Chequered Plates, with raised patterns for improved grip, are resistant to corrosion. The thicknesses available are 1.5mm to 10mm, and the widths go up to 1500mm, which is perfect for flooring and stair treads.
The perforated sheets are made from Stainless Steel 440B, providing corrosion resistance and ventilation. Generally available in a thickness range of 0.5mm to 3mm, and sheet sizes up to 2000mm x 4000mm, the perforated sheets are used for filtration, architectural, and decorative applications.
Stainless Steel 440B Shim Sheets are corrosion resistant and find applications in fine adjustment of machines and tools. The sheets have a thickness ranging from 0.05mm to 3mm and come in standard sizes such as 1000mm x 2000mm.
The 440B Polished Plates of Stainless Steel offer corrosion resistance along with an excellent aesthetic appeal, and are offered in a variety of thicknesses between 1mm and 50mm and widths up to 2000mm, especially for decorative and architectural applications.
At Mbemba Stainless, we give prime importance to quality along with great customer service backed up by rich documentation of the excellent Stainless Steel 440B Sheets and Plates that we deliver. We give essential documents that include the commercial invoice, the packing list, fumigation certificate, heat treatment chart, quality assurance plan, and a lab test report NABL approved. Such rich documentation of these premium quality products increases trust and confidence in the product from the most valued customers’ side. Besides, we provide Stainless Steel 440B Sheets and Plates with different test certificates, such as MTC as per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third Party Inspection Certificate, as a reflection of our commitment to excellence and customer satisfaction.
You’ll find **Stainless Steel 440B Sheet and Plates** widely utilized in **automotive, aerospace, petrochemical, marine, and engineering sectors**, where high hardness and wear resistance are critical. They’re perfect for crafting blades, pump components, valve parts, molds, and industrial machinery that face pressure, friction, or heat. Their remarkable durability also makes them a great choice for precision instruments and tools. Plus, these sheets and plates are essential in chemical processing and power generation environments, where corrosion resistance and mechanical reliability are vital for long-term, efficient performance.







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