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Boiler Plate ASTM A516 Grade 70 / ASME SA516
ASTM A516 / ASME SA516 Pressure Vessel Plates
ASTM A516 is the standard specification for carbon steel plates intended primarily for service in welded pressure vessels where moderate to lower temperature notch toughness is important. It is the most popular material for boiler and vessel fabrication.
Available Grades:
- Grade 70: Offers the highest tensile and yield strength. It is the most commonly used grade for boilers, storage tanks, and heavy-duty pressure vessels.
- Grade 60: Lower tensile strength but offers better weldability and notch toughness, used in specific design requirements.
Specifications:
- Thickness: 6.0 mm – 50.0 mm (Heavy plates available)
- Standard Size: 5' x 20' (1524 x 6096 mm)
- Condition: As Rolled or Normalized (for enhanced impact resistance)
Applications:
- Pressure Vessels (LPG/NGV Tanks)
- Industrial Boilers and Heat Exchangers
- Oil & Gas Pipelines and Valves
Trinity Dynamic supplies ASTM A516 Gr.70 directly from mills with full traceability (MTC). We provide CNC cutting services to your required dimensions.
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Why Choose ASTM A516 Grade 70?
ASTM A516 Grade 70 provides an excellent combination of strength, weldability, and notch toughness. It is designed to withstand high pressure and is rigorously tested to ensure safety. Compared to general structural steel (like A36), A516 has tightly controlled chemical composition to ensure consistent performance under stress.
Grade 60 vs. Grade 70
| Property | Grade 60 | Grade 70 |
|---|---|---|
| Tensile Strength | 415 - 550 MPa | 485 - 620 MPa |
| Yield Strength (Min) | 220 MPa | 260 MPa |
| Usage | Specific Low Temp | General Pressure Vessel |
Technical Specifications
Standard: ASTM A516 / ASME SA516
Steel Type: Carbon Steel (PVQ)
Heat Treatment: Normalizing (Required for thickness > 40mm)
Chemical Composition (Max %) - Grade 70
| Grade | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) |
|---|---|---|---|---|---|
| Gr.70 | 0.27 - 0.31 | 0.85 - 1.20 | 0.035 | 0.035 | 0.15 - 0.40 |
| Stock Availability: ASTM A516 Gr.70 | ||
|---|---|---|
| Thickness (mm) | 5' x 20' (1524 x 6096 mm) | Custom Cut |
| 6.0 - 9.0 | ✓ | ✓ |
| 10.0 - 12.0 | ✓ | ✓ |
| 15.0 - 20.0 | ✓ | ✓ |
| 25.0 - 50.0+ | ✓ | ✓ |
