ASTM A213/ASME SA213 T22 Chrome Moly Alloy Heater Tubes/Pipes
1. Product Description: ASTM A213/ASME SA213 T22 Chrome Moly Alloy Heater Tubes/Pipes are engineered for applications that demand high levels of heat resistance and mechanical strength. These tubes and pipes are manufactured from chrome molybdenum alloy steel, which is known for its excellent creep resistance and toughness at elevated temperatures. The seamless construction of T22 tubes ensures uniform wall thickness and superior structural integrity, making them suitable for a variety of high-temperature heating applications.
2. Product Parameters:
Parameter | Description |
Grade | ASTM A213/ASME SA213 T22 |
Material | Chrome Moly Alloy Steel (Seamless) |
Standard | ASTM A213, ASME SA213 |
Size Range | Various diameters and wall thicknesses as per ASTM/ASME standards |
Length | Standard lengths, customizable upon request |
Ends | Plain ends, beveled ends, threaded, or socket-weld ends |
Surface Treatment | As-rolled, annealed, or normalized |
3. Mechanical Properties:
Property | Typical Requirements |
Tensile Strength | ≥415 MPa (60,000 psi) |
Yield Strength | ≥205 MPa (30,000 psi) |
Elongation | ≥30% in 50 mm (2 in) or 4D, whichever is greater |
Hardness | Varies depending on heat treatment |
4. Chemical Composition:
Element | Typical Range (%) |
Carbon | ≤0.12 |
Manganese | ≤0.50 |
Phosphorus | ≤0.025 |
Sulfur | ≤0.025 |
Silicon | ≤0.50 |
Chromium | 0.40 - 0.60 |
Molybdenum | 0.40 - 0.60 |
5. Product Applications:
- Heat Exchangers: Used for high-temperature heat exchange processes.
- Boiler Tubes: Ideal for steam generation in high-pressure boilers.
- Superheater Tubes: Employed in superheater sections to increase steam temperature.
- Pressure Vessels: Suitable for construction of high-pressure vessels and reactors.
- Gas and Oil Industry: Utilized in pipelines and equipment for oil and natural gas transport in high-temperature environments.
6. Product Advantages:
- Seamless Construction: Offers a consistent material structure and eliminates potential seam-related failures.
- High-Temperature Resistance: Chrome moly alloy steel provides excellent resistance to high temperatures and thermal cycling.
- Heat Resistance: Designed to withstand the continuous high-temperature conditions found in heat exchangers and boilers.
- Corrosion Resistance: The alloy content enhances the tubes' resistance to corrosion and oxidation.
- Long Service Life: Built to last with minimal maintenance in harsh environments.


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