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Duplex Stainless Steel Pipe S32750 ASME SA789 – Bright Annealed for Condenser and Heat Exchanger Systems
Introduction:
The S32750 duplex stainless steel pipe manufactured to ASME SA789 standards is a high-performance, corrosion-resistant solution designed for industrial condenser and heat exchanger systems. Featuring a bright annealed finish, this pipe combines exceptional mechanical strength, pitting resistance, and long-term durability, making it ideal for chemical, petrochemical, power generation, and seawater applications. The duplex microstructure ensures superior resistance to chloride-induced stress corrosion cracking, while the polished surface enhances fluid flow efficiency and minimizes fouling, optimizing heat transfer performance in industrial systems.
Material Table:
| Material Grade | Description | Key Properties |
|---|---|---|
| S32750 Super Duplex Stainless Steel | High-strength duplex stainless steel | Excellent pitting and crevice corrosion resistance, high tensile strength, suitable for harsh chemical and chloride environments |
Specifications Table:
| Parameter | Value / Range |
|---|---|
| Standard | ASME SA789 |
| Pipe Type | Welded / Seamless |
| Outer Diameter (OD) | 12.7mm – 200mm |
| Wall Thickness (WT) | 1.5mm – 12mm |
| Length | 6m / 12m |
| Surface Finish | Bright Annealed / Polished |
| Connection Type | Butt-welded / Socket-weld |
| Pressure Rating | Up to 200 bar (depending on schedule) |
Manufacturing Process Table:
| Step | Description |
|---|---|
| Raw Material Selection | High-quality super duplex stainless steel billets |
| Forming | Hot or cold forming into pipe shape |
| Welding | TIG or MIG welding for strong, seamless joints |
| Heat Treatment | Bright annealing to enhance corrosion resistance and mechanical properties |
| Surface Treatment | Pickling and passivation for additional corrosion resistance |
| Inspection & Testing | Hydrostatic, ultrasonic, and dimensional inspections |
| Packaging | Protective packaging to prevent damage during transport |
Uses / Applications Table:
| Industry / Application | Description |
|---|---|
| Heat Exchangers | Tubing for efficient heat transfer systems |
| Condensers | Industrial and power plant cooling pipelines |
| Chemical & Petrochemical | High-pressure corrosive fluid transport |
| Offshore & Marine | Seawater piping and desalination systems |
| Power Generation | Cooling systems, condensers, and heat recovery loops |
Advantages:
-
High Strength: Capable of handling high-pressure and high-temperature systems.
-
Superior Corrosion Resistance: Excellent performance in chloride, seawater, and chemical environments.
-
Durable & Long-Lasting: Minimizes maintenance and extends service life.
-
Bright Annealed Surface: Smooth surface improves fluid flow and reduces scaling and fouling.
-
Versatile Applications: Ideal for condensers, heat exchangers, chemical process systems, and offshore applications.
FAQ:
-
Q: Can this pipe be used for seawater applications?
A: Yes, S32750 super duplex stainless steel provides exceptional resistance to seawater and chloride-induced corrosion. -
Q: Are custom sizes available?
A: Yes, outer diameter, wall thickness, and length can be customized. -
Q: Is it suitable for high-temperature applications?
A: Absolutely, the bright annealed S32750 duplex pipe maintains mechanical integrity at high temperatures. -
Q: How is quality ensured?
A: Pipes undergo hydrostatic, ultrasonic, and dimensional inspections as per ASME SA789 standards.
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The S32750 duplex stainless steel pipe with bright annealing provides high strength, superior corrosion resistance, and long-term durability, making it the ideal choice for condensers, heat exchangers, offshore, and industrial process systems.
