• Duplex Stainless Steel Pump Casing
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Duplex Stainless Steel Pump Casing

  • Jiachuang
  • Dalian, Liaoning
  • Z3CN20-09M
  • 2,000 Ton/year
1. Stainless Steel Pump Casing combines the strength of ferritic steel with the corrosion resistance of austenitic steel. 2. Stainless Steel Pump Casing manufactured to Z3CN20-09M specifications, suitable for critical safety-class fluid systems. 3. Stainless Steel Pump Casing has exceptional resistance to Stress Corrosion Cracking (SCC) and chloride pitting in harsh environments.

Introduction of the Nuclear Power Pump Pump Casing:

The Z3CN20-09M Nuclear Power Pump Pump Casing represents  Dalian Jiachuang’s alloy casting capabilities. This grade is a specialized Duplex Stainless Steel, engineered for environments where standard 304 or 316 stainless steels would fail due to corrosion or insufficient strength. Nuclear Power Pump Pump Casing is frequently specified for nuclear power plant cooling loops and aggressive chemical processing.


Stainless Steel Pump Casing

Metallurgical Advantages of Corrosion Resistant Pump Volute:

The "Duplex" name refers to the balanced microstructure of approximately 50% ferrite and 50% austenite. This unique composition grants the material superior properties:

High Strength: It possesses a yield strength roughly double that of conventional austenitic stainless steels, allowing for lighter, thinner-walled designs without compromising pressure ratings.

Pitting Resistance: The high Chromium (approx. 20%) and optimized Molybdenum content ensure outstanding resistance to pitting and crevice corrosion, especially in chloride-rich media like seawater or brackish water.

SCC Resistance: It virtually eliminates the risk of Stress Corrosion Cracking, a common failure mode in hot, tensile-stressed environments.


Advanced Production Techniques of Corrosion Resistant Pump Volute:

Casting Z3CN20-09M High Alloy Pump Casing requires exacting process control. We employ Intermediate Frequency Induction Furnaces to strictly control the nitrogen content, which is crucial for stabilizing the austenite phase. Our heat treatment protocols are meticulously managed to avoid the precipitation of detrimental sigma phases, which can embrittle the metal. Post-casting, the internal passages are finished to a high degree of smoothness to prevent sediment accumulation and bio-fouling.


Applications:

This High Alloy Pump Casing is ideal for Primary and Secondary Circuit Pumps in Nuclear Power Plants, Seawater Desalination High-Pressure Pumps, and Chemical Injection Systems.


About us:

Dalian Jiachuang Metal Manufacturing Co., Ltd. is located in Dalian city, Liaoning Province, covering an area of 30,000 square meters. The main business includes ferrous metal casting, mold manufacturing, mechanical processing, etc.


Our company owns its own factory and can provide customized processing of various steel castings. If you have any customization needs or other questions, please feel to contact us. We will help you solve 99% of your problems.


After sending your inquiry, a dedicated customer service representative will contact you directly.


Nuclear Power Pump Pump Casing

Corrosion Resistant Pump Volute


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