Description
ASME SA 387 Grade 22 Class 2 / ASTM A387 Grade 22 Class 2 Chrome Moly Pressure Vessel Steel Plates
Introduction:
ASME SA 387 Grade 22 Class 2 and ASTM A387 Grade 22 Class 2 plates are high-strength pressure vessel steel plates designed for use in elevated temperature environments. Containing 2.25% chromium and 1% molybdenum, these plates are ideal for heat-resistant applications, such as boilers and pressure vessels, and have excellent resistance to corrosion and oxidation.
Key Features:
- Effective at temperatures up to 600°C
- High tensile strength and heat resistance
- Good weldability for pressure vessel fabrication
- Corrosion and oxidation resistant
Chemical Composition:
| Element | Heat Analysis (%) | Product Analysis (%) |
|---|---|---|
| Carbon | 0.05 – 0.15 | 0.04 – 0.15 |
| Manganese | 0.30 – 0.60 | 0.25 – 0.66 |
| Phosphorus (max) | 0.035 | 0.035 |
| Sulphur (max) | 0.035 | 0.035 |
| Silicon (max) | 0.50 | 0.50 |
| Chromium | 2.00 – 2.50 | 1.88 – 2.62 |
| Molybdenum | 0.90 – 1.10 | 0.85 – 1.15 |
Mechanical Properties:
| Property | Value |
|---|---|
| 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:
These steel plates are widely used in industries requiring high-temperature and pressure resistance, such as oil & gas, petrochemical, and power generation. They are ideal for manufacturing boilers, pressure vessels, and heat exchangers where high tensile strength and resistance to oxidation are crucial.
Advantages of Chromium and Molybdenum:
- Heat Resistance: Excellent performance under high temperatures.
- Corrosion Resistance: Superior protection against oxidation, especially in sour gas environments.
- Cost Efficiency: Provides many of the benefits of stainless steel at a lower cost, due to lower chromium content (typically 0.5% – 5% compared to 16% in stainless steel).
Supply Cities:
Mumbai Ahmedabad, Amaravathi, Ambattur, Bangalore, Belgaum, Chennai, Chittoor, Coimbatore, Dindigul, Mysore, Nellore, Hyderabad, Kochi, Mangalore, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Tamil Nadu, Telangana, Visakhapatnam, Kochi, Kerala, Hubli-Dharwad, Karnataka.
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