ASTM A192 SA192 Seamless Carbon Steel Boiler Tubes: Seamless Steel Tube for High-Pressure Service
Material Specification
ASTM A192/ASME SA192 is a standard specification for seamless carbon steel boiler tubes intended for high-pressure service. These tubes are primarily used in the construction of boilers, superheaters, and heat exchangers, where they are subjected to high temperatures and pressures.
Key Features
- High-Pressure Resistance: Designed to withstand high pressure, making them ideal for boiler and superheater applications.
- Seamless Construction: Ensures uniform strength and eliminates the risk of leakage under high-pressure conditions.
- Corrosion Resistance: Offers good resistance to corrosion, enhancing the longevity of the tubes in harsh environments.
- Versatility: Suitable for a wide range of applications in various industries, including power generation and petrochemical.
Chemical Composition
The chemical composition of ASTM A192/ASME SA192 seamless carbon steel boiler tubes is critical to their performance. The table below outlines the typical chemical composition:
| Element | Composition (%) |
| Carbon (C) | 0.06 - 0.18 |
| Manganese (Mn) | 0.27 - 0.63 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | ≤ 0.25 |
Mechanical Properties
The mechanical properties of ASTM A192/ASME SA192 tubes are essential for ensuring their performance under high-pressure conditions. The table below provides the typical mechanical properties:
| Property | Value |
| Tensile Strength | ≥ 325 MPa (47,100 psi) |
| Yield Strength | ≥ 180 MPa (26,100 psi) |
| Elongation | ≥ 35% |
Steel Grade
The steel grade for ASTM A192/ASME SA192 is a carbon steel grade specifically designed for high-pressure applications. It is characterized by its ability to withstand high temperatures and pressures without compromising structural integrity.
Application
ASTM A192/ASME SA192 seamless carbon steel boiler tubes are widely used in:
- Boilers: For generating steam and hot water in power plants and industrial facilities.
- Superheaters: To increase the temperature of steam above its saturation point.
- Heat Exchangers: For efficient heat transfer in various industrial processes.
- Petrochemical Industry: In applications requiring high-pressure and high-temperature resistance.
Possible Alternative Grades
While ASTM A192/ASME SA192 is a popular choice for high-pressure applications, there are alternative grades that may be considered based on specific requirements:
- ASTM A210: Another seamless carbon steel tube specification for boiler and superheater applications.
- ASTM A179: Seamless cold-drawn low-carbon steel heat-exchanger and condenser tubes.
- ASTM A213: Seamless ferritic and austenitic alloy steel boiler, superheater, and heat-exchanger tubes.
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