Description
A387 Grade 5 Class 2 / SA 387 Grade 5 Class 2 Chrome Moly Plates
Introduction:
A387 Grade 5 Class 2 and SA 387 Grade 5 Class 2 plates are high-quality chromium-molybdenum alloy steel plates, specifically engineered for use in weldable pressure vessels operating at elevated temperatures. The molybdenum component enhances the tensile strength at high temperatures, while the chromium content boosts corrosion resistance, making these plates ideal for demanding industrial environments.
Key Features:
- High tensile strength at elevated temperatures
- Excellent corrosion and oxidation resistance
- Designed for pressure vessels and boilers
- Supplied with mill test certification and individual stamping
Chromium and Molybdenum Content (as per ASME specifications):
| Designation | Nominal Chromium (%) | Nominal Molybdenum (%) |
|---|---|---|
| A387 Grade 5 | 5.00% | 0.50% |
Mechanical Properties of SA 387 Grade 5 Class 2 Plates:
| Property | Requirement | Grade 5 |
|---|---|---|
| Tensile Strength (ksi) | 75 – 100 [515 – 690 MPa] | |
| Yield Strength (ksi) | Min 45 [310 MPa] | |
| Elongation in 2 in. (50mm) (%) | Min 18 | |
| Reduction of Area (%) | 45 (round specimen), 40 (flat specimen) |
Applications:
A387 Grade 5 Class 2 Chrome Moly plates are used in industries where resistance to heat and corrosion is essential, particularly in the oil and gas sector. These plates are widely used for manufacturing boilers, pressure vessels, and heat exchangers where high performance is critical under elevated temperatures.
