ASTM A369 FPB Carbon Steel Pipe
ASTM A369 FPB is a forged and bored seamless carbon steel pipe designed for high-temperature and high-pressure service conditions. Manufactured through forging and precision boring, ASTM A369 FPB pipes offer exceptional uniformity, strength, and heat resistance, making them suitable for boilers, superheaters, reheaters, and heat exchangers. These pipes deliver long-lasting performance in harsh industrial environments where durability is critical.
Key Features
- High-temperature carbon steel designed for pressure applications
- Forged & bored construction for superior mechanical integrity
- Excellent resistance to thermal fatigue and stress
- Seamless structure ensures reliable, leak-proof performance
- Ideal for thick-wall, heavy-duty piping systems
- Suitable for power plants, refineries, and chemical industries
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| ASTM | A369 FPB |
| ASME | SA369 FPB |
| Material Type | High-Temperature Carbon Steel |
ASTM A369 FPB Chemical Composition
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.17 – 0.22 |
| Manganese (Mn) | 0.30 – 0.60 |
| Silicon (Si) | 0.10 – 0.35 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
Grade FPB Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | Minimum 485 MPa |
| Yield Strength | Minimum 275 MPa |
| Elongation | Minimum 20% |
| Hardness | As per ASTM A369 limits |
| Temperature Strength | Excellent for elevated-service applications |
Grade FPB Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | Approx. 1450°C |
| Thermal Conductivity | Good |
| Temperature Resistance | Suitable for high temperatures |
| Modulus of Elasticity | ~200 GPa |
Type of Grade FPB Pipe
- Forged & Bored Carbon Steel Pipes
- Thick Wall Seamless Carbon Steel Pipes
- Heavy Wall Boiler Pipes
- Superheater Pipes
- Reheater Pipes
- Heat Exchanger Pipes
Applications
- High-Pressure Boilers
- Superheaters & Reheaters
- Steam Lines & Headers
- Petrochemical & Refinery Heaters
- Power Plant Piping Systems
- High-Temperature Pressure Lines
- Heat Exchanger Shells
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