ASME SA106 Grade B and Grade C High Pressure Seamless Steel Boiler Tubes
1. Product Description: ASME SA106 Grade B and Grade C High Pressure Seamless Steel Boiler Tubes are premium-quality tubes designed for use in high-pressure boiler systems. These tubes are manufactured from carbon steel and are seamless, ensuring uniform wall thickness and superior structural integrity. The ASME SA106 standard specifies these tubes, which are categorized into different grades based on their mechanical properties and intended applications.
2. Product Parameters:
| Parameter | Description |
| Grades | ASME SA106 Grade B and Grade C |
| Material | Carbon Steel (Seamless) |
| Standard | ASME SA106 |
| Size Range | Various diameters and wall thicknesses as per ASME SA106 |
| 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 | ASME SA106 Grade B Requirement | ASME SA106 Grade C Requirement |
| Tensile Strength | ≥485 MPa (70,000 psi) | ≥485 MPa (70,000 psi) |
| Yield Strength | ≥240 MPa (35,000 psi) | ≥310 MPa (45,000 psi) |
| Elongation | ≥20% in 50 mm (2 in) | ≥20% in 50 mm (2 in) |
| Hardness | Varies depending on heat treatment | Varies depending on heat treatment |
4. Chemical Composition:
| Element | Typical Range (%) for ASME SA106 Grades |
| Carbon | 0.29 - 0.36 |
| Manganese | 0.35 - 0.60 |
| Phosphorus | ≤ 0.025 |
| Sulfur | ≤ 0.025 |
| Silicon | ≤ 0.35 |
5. Product Uses:
- Boiler Tubes: Utilized in power and industrial boilers for steam generation.
- Superheater Tubes: Employed in the superheater sections of steam power plants.
- 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.
- Refineries: Used in high-temperature pipelines and components within oil refineries.
6. Product Grade Standards:
- ASME SA106 Grade B: This grade is suitable for moderate pressure applications and offers balanced mechanical properties.
- ASME SA106 Grade C: Offers higher tensile and yield strength compared to Grade B, making it suitable for more demanding high-pressure applications.
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