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Harsh Metalloys, established in Mumbai, India, is a prominent Stainless Steel 440B Sheet and Plate manufacturer and supplier, renowned for their moderate corrosion resistance, high hardness, and high wear resistance. These sheets and plates are made from high-carbon martensitic stainless steel and are precision-engineered to satisfy varied industrial standards. Supplied in different thicknesses and finishes, Harsh Metalloys delivers superior surface quality and dimensional accuracy. Our 440B sheets and plates cater to essential industries like aerospace, automotive, tooling, and defense, providing consistent performance in applications requiring toughness, durability, and abrasion resistance.
Stainless Steel 440B Sheets and Plates have about 16–18% chromium and 0.75–0.95% carbon, developing a martensitic microstructure that provides great hardness (54–58 HRC) and tensile strength up to 650 MPa upon heat treatment. These plates and sheets have good wear resistance and intermediate corrosion resistance for mildly corrosive conditions. They have high carbon content with increased strength, toughness, and stability of dimensions, ideal for precision fabrication. Harsh Metalloys offers consistent quality, thickness uniformity, and smooth finishes to satisfy strict industry demands.
| 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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Stainless Steel 440B Hot Rolled Sheets have superior wear resistance and strength, suitable for structural and industrial use where the plates need to withstand and have moderate corrosion resistance.
Stainless Steel 440B Cold Rolled Plates have a sleek surface and accurate size, perfect for applications where high hardness, strength, and formability are required.
Stainless Steel 440B Chequered Plates have a gritted surface for better grip and strength, perfect for floor use, walkways, and anti-slip surfaces.
Stainless Steel 440B Perforated Sheets provide strength and appearance with superior wear resistance, utilized for filtration, ventilation, and decorative architectural use.
Stainless Steel 440B Shim Sheets are thin and accurate, utilized for adjustments, spacing, and alignment in tools, dies, and machinery configurations.
Stainless Steel 440B Polished Plates provide a smooth, reflective surface with corrosion and wear resistance, well-suited for decorative, sanitary, and high-precision use.
440B Stainless Steel Sheets and Plates are extensively applied in the production of cutting tools, valve parts, aeronautical parts, automotive parts, and machinery with high wear resistance and moderate corrosion protection. They find application in tooling, dies, and fixtures where hardness is key and durability is essential. These sheets and plates are good performers in friction-exposed, mechanically stressed, and mild corrosive environments. Harsh Metalloys provides stocked stainless steel 440B plates and sheets that have been crafted to offer remarkable strength, durability, and long service life in numerous industrial applications.
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