ASTM A213 TP321 Stainless Steel Heat Exchanger Tube For Chemical Industry
ASTM A213 TP321 Stainless Steel Heat Exchanger Tube For Chemical Industry
ASME SA213 outlines the requirements for seamless and welded tubes intended for use in boiler, superheater, and heat exchanger applications. It ensures that the tubes meet stringent industry standards for quality and performance.
TP321 exhibits good tensile strength, ductility, and excellent weldability. The addition of titanium enhances its resistance to high-temperature oxidation and scaling.While the thermal conductivity of TP321 is not as high as that of carbon steels, it is sufficient for effective heat transfer in heat exchanger applications.
Chemical Composition:
| Grade | Cr | Ni | Ti | C |
| A213 TP321 | 17.0–19.0% | 9.00-12.00% | ≥ 5x C content | ≤ 0.08% |
Mechanical Properties:
| Grade | Yield Strength |
Tensile Strength |
Elongation | Hardness |
| A213 TP321 |
≥ 205 MPa (30 ksi) |
≥ 515 MPa (75 ksi) |
≥ 35% in 50 mm |
Typically ≤ 95 HRB |
Key Features
- Material Composition:TP321 Stainless Steel: Contains chromium (17-19%), nickel (9-12%), and titanium.
- Corrosion Resistance: Strong resistance to intergranular corrosion, especially after welding.
- High-Temperature Stability: Performs well in elevated temperature environments.
- Durability: Maintains structural integrity under thermal cycling and mechanical stress.
Applications:
- Aerospace Industry: Used in heat exchangers and components exposed to high temperatures and aggressive environments, such as aircraft engines.
- Chemical Processing: Employed in reactors, heat exchangers, and piping systems that handle corrosive chemicals at elevated temperatures.
- Oil and Gas: Used in offshore platforms and refineries for heat exchangers and other equipment that must withstand harsh conditions.
- Power Generation: Applied in steam generators, superheaters, and heat recovery systems, particularly in fossil fuel and nuclear power plants.
- Marine Applications: Suitable for heat exchangers in ships and offshore structures due to their resistance to seawater and corrosion.
- Pharmaceuticals: Utilized in processes requiring high purity and resistance to corrosive cleaning agents, making it suitable for heat exchangers in this industry.
- Food and Beverage: Used in heat exchangers for processes requiring sanitary conditions and resistance to various cleaning agents.
- Pulp and Paper: Employed in heat exchangers and process equipment within the pulp and paper industry, which can involve corrosive substances.
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