Sheet & Plate
Alloy Steel SA387 Grade 11 Sheet & Plate
At Diya Steelloy, we provide premium-quality Alloy Steel SA387 Grade 11 Sheets & Plates, engineered for applications requiring excellent strength and performance at elevated temperatures. This chromium-molybdenum alloy steel offers superior creep resistance, thermal stability, and corrosion resistance, making it ideal for use in pressure vessels, boilers, heat exchangers, and petrochemical industries. Our Grade 11 plates are known for their good weldability, toughness, and dimensional precision, ensuring reliable operation in high-pressure and high-temperature environments.
Equivalent Grades of SA387 Grade 11
| ASTM | ASME | EN | DIN | BS |
|---|---|---|---|---|
| SA387 Gr 11 Cl 1 / Cl 2 | SA387 Gr 11 | 13CrMo4-5 | 13CrMo44 | 621B |
Chemical Composition of Alloy Steel SA387 Grade 11 Sheet & Plate
| Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) | Chromium (Cr) | Molybdenum (Mo) |
|---|---|---|---|---|---|---|
| 0.05 – 0.17 | 0.40 – 0.70 | ≤ 0.025 | ≤ 0.025 | 0.50 max | 1.00 – 1.50 | 0.45 – 0.65 |
Mechanical Properties of Alloy Steel SA387 Grade 11 Sheet & Plate
| Tensile Strength | Yield Strength | Elongation | Impact Energy | Hardness |
|---|---|---|---|---|
| 415 – 585 MPa | ≥ 205 MPa | ≥ 20% | ≥ 42 J (at -18°C) | ≤ 250 HBW |
Physical Properties of Alloy Steel SA387 Grade 11
| Density | Melting Point | Thermal Conductivity | Specific Heat | Electrical Resistivity |
|---|---|---|---|---|
| 7.8 g/cm³ | 1425 – 1510 °C | 26.3 W/m·K (at 20°C) | 460 J/kg·K | 0.22 μΩ·m (at 20°C) |
Specifications
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Material Grade: SA387 Grade 11 Class 1 / Class 2
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Standard: ASTM A387 / ASME SA387
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Thickness Range: 3mm to 100mm (custom on request)
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Width: Up to 2500mm
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Length: Up to 12000mm or as required
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Surface Finish: Hot Rolled, Annealed, Pickled
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Forms Available: Sheet, Plate, Cut-to-size
