ASTM A213/ASME SA213 T11 Seamless Ferritic Alloy-Steel Boiler Tubes: High-Strength Tubing for Industrial Boilers
1. Product Description: ASTM A213/ASME SA213 T11 Seamless Ferritic Alloy-Steel Boiler Tubes are premium tubes designed for use in boiler applications that demand high strength and resistance to high temperatures. These tubes are manufactured from a ferritic alloy steel, which provides excellent creep resistance and ductility. The seamless construction ensures uniform wall thickness and superior structural integrity, making them ideal for critical boiler components.
2. Product Parameters:
| Parameter | Description |
| Grade | ASTM A213/ASME SA213 T11 |
| Material | Ferritic 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 | 9.0 - 11.0 |
5. Product Applications:
- Boiler Tubes: Used for steam generation in high-pressure boilers.
- Superheater Tubes: Employed in superheater sections to raise steam temperature.
- Heat Exchangers: Suitable for use in heat exchangers operating under high pressure and temperature.
- Pressure Vessels: Ideal for construction of high-pressure vessels and reactors.
- Gas and Oil Industry: Utilized in pipelines and equipment for oil and natural gas transport where high-temperature resistance is required.
6. Product Advantages:
- Seamless Construction: Provides a consistent material structure and eliminates potential seam-related failures.
- High-Temperature Resistance: Alloy steel offers excellent resistance to high temperatures and thermal cycling.
- Creep Resistance: Designed to resist deformation under prolonged exposure to heat, which is critical in boiler applications.
- 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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