ASME VIII Certified ASTM A516 Gr.70 Carbon Steel Tube Sheet, Square Layout for Pressure Vessels
ASME VIII Certified ASTM A516 Gr.70 Carbon Steel Tube Sheet, Square Layout for Pressure Vessels
Yuhong Holding Group Co., Ltd. is a globally recognized manufacturer specializing in pressure vessels, with an annual production capacity exceeding 6,000 tons. We provide a wide range of high-quality products, including thin-film evaporators, heat exchangers, reactors, columns, storage tanks, and filters. Our products are widely used in industries such as petrochemicals, pharmaceuticals, and energy.
The Grade70 Carbon Steel Tubesheet, manufactured to ASTM A516 specifications, is specifically designed for heat exchangers with a square hole pattern. This design simplifies cleaning and maintenance while ensuring excellent mechanical stability and thermal performance. Made from Grade70 carbon steel, the tubesheet offers superior strength, durability, and reliability for high-pressure and high-temperature applications.
ASTM A516 Gr.70 Carbon Steel Tube Sheet Chemical Composition
The ASTM A516 Grade70 carbon steel is widely recognized for its excellent weldability and high-strength properties, making it ideal for heat exchanger tubesheets. Below is the chemical composition:
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.17 - 0.23 |
| Manganese (Mn) | 0.85 - 1.20 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | 0.15 - 0.40 |
ASTM A516 Gr.70 Carbon Steel Tube Sheet Mechanical Properties
The mechanical properties of Grade70 Carbon Steel make it suitable for high-pressure environments, ensuring long-term performance and reliability.
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 485 - 620 |
| Yield Strength (MPa) | ≥ 260 |
| Elongation (%) | ≥ 21 |
| Impact Energy (J, -20°C) | ≥ 27 |
Other Equivalent Grades of ASTM A516 Gr.70 Carbon Steel Tube Sheet
The Grade70 carbon steel is globally recognized and has several equivalent grades under different standards:
| Standard | Grade |
|---|---|
| ASTM/ASME | A516 Grade70 |
| EN/DIN | P355GH |
| JIS | SB42 |
| ISO | 20MnMoNi5-5 |
| GB/T | Q345R |
Heat Exchanger Tubesheet Types
Tubesheets are critical components in heat exchangers, providing structural support and alignment for the tubes. Different hole patterns and designs are used to optimize performance for specific applications.
Common Tubesheet Types:
-
Square Pattern:
- Simplifies cleaning and maintenance.
- Provides good thermal performance with reduced pressure drop.
-
Rotated Triangular Pattern:
- Maximizes tube density for compact designs.
- Enhances heat transfer efficiency.
-
Custom Patterns:
- Tailored to meet specific project requirements.
The square pattern on the Grade70 Tubesheet makes it ideal for applications requiring ease of maintenance and excellent mechanical stability.
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