ASTM A249 TP321 WLD Heat Exchanger Tube
| Attribute | Value |
|---|---|
| Standards | ASTM A249, ASME SA249 |
| Materials | TP321 |
| Ends | PE, BE |
| Application | Heat Exchangers, Coolers, Condensers |
Heat Exchanger Tubes made from ASTM A249 TP321 are a preferred choice for various industrial heat transfer applications due to their excellent corrosion resistance, high-temperature strength, and durability.
ASTM A249 TP321 is a stainless steel alloy that belongs to the 300-series (austenitic stainless steel). It is stabilized with titanium (Ti), which improves its resistance to intergranular corrosion, particularly in high-temperature environments. This stabilization makes TP321 ideal for welded applications and heat exchanger systems.
- High-Temperature Resistance: TP321 can withstand temperatures up to 870°C (1600°F), making it suitable for high-pressure and high-temperature operations.
- Corrosion Resistance: Excellent resistance to oxidation, stress corrosion cracking, and intergranular corrosion.
- Good Weldability: The titanium stabilization minimizes carbide precipitation during welding, avoiding corrosion at weld joints.
- Durability: High strength and resistance to thermal fatigue ensure a long service life.
Corrosion Resistance:
- High resistance to intergranular corrosion, even after welding, due to titanium stabilization.
- Excellent performance in both oxidizing and reducing environments.
Thermal Strength:
- Maintains mechanical integrity at elevated temperatures.
- Resists scaling in high-temperature operations.
Longevity and Reliability:
- Durable in harsh conditions, reducing maintenance and downtime.
- Welded construction ensures high structural integrity.
Versatility:
- Suitable for both corrosive and high-temperature environments, offering flexibility across industries.
| Grade | C | Cr | Ni | Ti |
|---|---|---|---|---|
| ASME SA249 TP321 | Max 0.08 | 17.0-19.0 | 9.0-12.0 | ≥ 5 × (C% + N%) to 0.7 |
| Grade | Yield Strength | Tensile Strength | Elongation |
|---|---|---|---|
| ASME SA249 TP321 | Min 205 MPa (30 ksi) | Min 515 MPa (75 ksi) | Min 35% |
Industrial Sectors:
- Petrochemical and Chemical Industries: Used in heat exchangers, condensers, and reboilers for transferring heat in corrosive environments.
- Power Generation: Boiler tubes and economizers in thermal and nuclear power plants.
- Food and Beverage Processing: Safe for heat transfer in food-grade systems due to its non-reactive properties.
- Aerospace and Automotive: Suitable for high-temperature exhaust and heat recovery systems.
Heat Exchanger Types:
- Shell and tube heat exchangers
- Air-cooled heat exchangers
- Condensers and evaporators
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