Alloy Steel Sheets and Plates are crafted from steel that’s enhanced with alloying elements such as chromium, molybdenum, nickel, vanadium, and manganese. These alloying components significantly boost hardness, tensile strength, corrosion resistance, and wear resistance. On a mechanical level, these sheets and plates provide outstanding toughness, stability at high temperatures, and superior fatigue strength. Their robust mechanical properties make them perfect for heavy-duty applications that require long-term reliability, precise dimensions, and exceptional durability, even in extreme environmental and operational conditions.
| Specifications | ASTM A387 / ASME SA387 |
| Thickness | 1mm-300mm |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, 4050mm etc |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, 12000mm, 15000mm etc |
| Surface | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching Manufacturer and Supplier |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR) |
| C | Mn | P | S | SI | Cr | Mo | |
| Grade 5 | 0.15 max | 0.3 – 0.6 | 0.035 | 0.03 | 0.5 max | 4.00 – 6.00 | 0.45 – 0.65 |
| Grade 9 | 0.15 max | 0.30 – 0.6 | 0.03 | 0.03 | 1.0 max | 8.0 – 10.0 | 0.9 – 1.1 |
| Grade 11 | 0.05 – 0.17 | 0.4 – 0.65 | 0.035 | 0.035 | 0.5 – 0.80 | 1.0 – 1.5 | 0.45 – 0.65 |
| Grade 12 | 0.05 – 0.17 | 0.4 – 0.65 | 0.035 | 0.035 | 0.15 – 0.4 | 0.8 – 1.15 | 0.45 – 0.6 |
| Grade 22 | 0.05 – 0.15 | 0.3 – 0.6 | 0.035 | 0.035 | 0.5 max | 2.0 – 2.5 | 0.9 – 1.1 |
| Tensile Strength (ksi) | Tensile Strength (MPa) | Yield Strength (ksi) | Yield Strength (MPa) | Elongation in 2 inches (%) | ||
| A 387 Grade 5 | Class 1 | 60-85 | 415-585 | 30 | 205 | 18 |
| Class 2 | 75-100 | 515-690 | 45 | 310 | 18 | |
| A 387 Grade 9 | Class 1 | 60-85 | 415-585 | 30 | 205 | 18 |
| Class 2 | 75-100 | 515-690 | 45 | 310 | 18 | |
| A 387 Grade 11 | Class 1 | 60-85 | 415-585 | 35 | 240 | 22 |
| Class 2 | 70-90 | 485-620 | 45 | 310 | 22 | |
| A 387 Grade 12 | Class 1 | 50-80 | 380-550 | 33 | 230 | 22 |
| Class 2 | 65-85 | 450-585 | 40 | 275 | 22 | |
| A 387 Grade 22 | Class 1 | 60-85 | 415-585 | 30 | 205 | 18 |
| Class 2 | 75-100 | 515-690 | 45 | 310 | 18 | |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Esha Steel is a trusted manufacturer and supplier of high-quality Alloy Steel Sheet and Plates in Kolkata India. We specialize in premium steel products, including Alloy Steel, Carbon Steel, Mild Steel and Galvanized Steel, with a strong focus on Carbon Steel Sheet and Plates. Our extensive inventory also includes Pipes, Tubes, Flanges, Forged Fittings and Bars. Committed to fast delivery and exceptional customer service, we use only the finest raw materials to ensure superior strength, durability and performance for critical industrial applications.
| Size (in inches) | Size (in mm) |
|---|---|
| .125″ | 3.18mm |
| .134″ | 3.40mm |
| .156″ | 3.96mm |
| .187″ | 4.75mm |
| .250″ | 6.35mm |
| .312″ | 7.92mm |
| .375″ | 9.53mm |
| .500″ | 12.7mm |
| .600″ | 15.9mm |
| .750″ | 19.1mm |
| .875″ | 22.2mm |
| 1″ | 25.4mm |
| 1.125″ | 28.6mm |
| 1.250″ | 31.8mm |
| 1.500″ | 38.1mm |
| 1.750″ | 44.5mm |
| 2″ | 50.8mm |
| 2.500″ | 63.5mm |
| 3″ | 76.2mm |
| Thickness | Plate Weight per Unit Area | Density |
|---|---|---|
| 3/16 inches | 0.06000 lbs/in²42.184176 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1/4 inches | 0.08 lbs/in²56.245568 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 3/8 inches | 0.121 lbs/in²85.0714216 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1/2 inches | 0.161 lbs/in²113.1942056 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 5/8 inches | 0.196 lbs/in²137.8016416 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 3/4 inches | 0.235 lbs/in²165.221356 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 7/8 inches | 0.274 lbs/in²192.6410704 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 inches | 0.313 lbs/in²220.0607848 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 1/4 inches | 0.391 lbs/in²274.9002136 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 1/2 inches | 0.47 lbs/in²330.442712 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 3/4 inches | 0.549 lbs/in²385.9852104 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 inches | 0.627 lbs/in²440.8246392 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 1/4 inches | 0.705 lbs/in²495.664068 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 1/2 inches | 0.784 lbs/in²551.2065664 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 3/4 inches | 0.862 lbs/in²606.0459952 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 3 inches | 0.941 lbs/in²661.5884936 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
These Alloy Steel Sheets and Plates find extensive use across a variety of industries thanks to their strength, versatility, and ability to withstand harsh conditions. In construction and infrastructure, they’re utilized for structural components, bridges, and heavy frameworks. The petrochemical and oil & gas industries rely on them for pressure vessels, storage tanks, and heat exchangers. Power plants depend on them for boiler equipment and high-temperature applications. Moreover, they’re widely used in shipbuilding, automotive manufacturing, mining equipment, and industrial machinery. Their capacity to endure high pressure, temperature, and corrosion makes them indispensable for critical engineering applications.
Esha Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Kolkata India.
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