Nickel Alloy Steel Heat Exchanger Tube ASME SB677 TP904L , Petrochemical Industry
Stainless Steel ASME SB677 TP904L Heat Exchanger Tube is a high-performance tube designed for extreme corrosion resistance, especially in harsh environments. Made from TP904L stainless steel, this super austenitic alloy contains high levels of chromium, nickel, and molybdenum.TP904L Stainless Steel: Low carbon, high alloy content for enhanced corrosion resistance. The tube conforms to ASME SB677 specifications, ensuring it meets stringent industry standards for quality and reliability. TP904L is a low-carbon version of 904 stainless steel, primarily composed of nickel, chromium, and molybdenum, which enhances its corrosion resistance and high-temperature performance.
Chemical Composition:
Grade | Cr | Ni | Mo | Cu | C |
TP904L | 19.0-23.0% | 23.0-28.0% | 4.0–5.0% | 1.0–2.0% | 0.02% max |
Mechanical Properties:
Grade | Tensile Strength | Yield Strength | Elongation | Hardness |
TP904L | ≥ 220 MPa (32 ksi) | ≥ 490 MPa (71 ksi) | ≥ 35% in 50 mm | Typically ≤ 90 HRB |
Applications:
1. Petrochemical Industry
- Refineries: Used in heat exchangers to recover heat from process streams and in distillation columns.
- Chemical Processing: Ideal for applications involving aggressive chemicals, such as in the production of ethylene, propylene, and other petrochemicals, where high corrosion resistance is critical.
2. Power Generation
- Boiler Feedwater Heaters: Used in the preheating of feedwater before it enters the boiler, improving efficiency and reducing fuel consumption.
- Heat Recovery Steam Generators (HRSG): Essential in combined cycle power plants where it captures waste heat from gas turbines to produce steam for additional electricity generation.
3. Marine Applications
- Heat Exchangers and Coolers: Utilized in marine environments for cooling systems on ships and offshore platforms, where resistance to seawater corrosion is vital.
4. Pharmaceuticals
- Process Equipment: Employed in heat exchangers that handle sensitive chemicals and high-purity applications, ensuring product integrity and compliance with stringent health regulations.
5. Food and Beverage
- Pasteurization Equipment: Used in systems that require high-temperature treatments to ensure the safety and quality of food products.
- Heat Recovery Systems: Implemented in processes to recover and reuse energy, minimizing waste and improving efficiency.
6. Aerospace and Defense
- Heat Exchangers in Aircraft Engines: Beneficial in high-performance aerospace applications where lightweight and high-strength materials are required.
7. Nuclear Power Plants
- Cooling Systems: Employed in secondary cooling loops due to its ability to withstand high temperatures and prevent corrosion in harsh environments.
8. Cryogenic Applications
- Heat Exchangers for LNG: Suitable for liquefied natural gas processes, where resistance to low temperatures and thermal cycling is crucial.
9. Environmental Technology
- Waste Heat Recovery Systems: Utilized in processes that aim to recycle energy from industrial exhausts, contributing to sustainability efforts.
