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Product Introduction
C70400 is a specific type of copper alloy, categorized as a copper-nickel-silicon alloy. It is also known as Copper Alloy 704. Here are the key details about C70400 copper strip:
Chemical Composition:
Copper (Cu): Approximately 83.0% - 85.0%
Nickel (Ni): Approximately 4.5% - 6.5%
Silicon (Si): Approximately 4.0% - 5.8%
Iron (Fe): Maximum of 2.0%
Manganese (Mn): Maximum of 2.0%
Zinc (Zn): Maximum of 1.5%
Lead (Pb): Maximum of 0.05%
Phosphorus (P): Maximum of 0.03%
Tin (Sn): Maximum of 0.03%
Aluminum (Al): Maximum of 0.02%
Key Features and Properties:
Corrosion Resistance: C70400 offers excellent corrosion resistance, particularly in seawater and marine environments. It is highly resistant to both general and localized corrosion, including stress corrosion cracking.
High Strength: It has good mechanical strength, which is maintained even at elevated temperatures. This makes C70400 suitable for applications where strength and resistance to thermal expansion are important.
Wear Resistance: The addition of silicon improves the alloy's wear resistance, making it suitable for components subjected to abrasion and erosion, such as pump parts and valve components.
Machinability: C70400 has good machinability despite its alloying elements, allowing it to be easily machined into various shapes and components.
Thermal Conductivity: It retains good thermal conductivity properties, which is beneficial in applications where heat dissipation is necessary.
Applications:
Marine Applications: C70400 is widely used in marine environments for seawater piping systems, heat exchangers, and condensers due to its excellent corrosion resistance and durability.
Oil and Gas Industry: It finds application in offshore oil platforms, where resistance to seawater corrosion and high mechanical strength are critical.
Power Generation: C70400 is used in power plant equipment such as steam turbines, where its resistance to corrosion and thermal stability are advantageous.
Chemical Processing: It is suitable for components in chemical processing equipment, where resistance to corrosive chemicals and high temperatures is required.
Automotive and Aerospace: In some cases, C70400 is used in automotive and aerospace applications where its specific combination of properties meets the requirements for components like bearings, bushings, and valve seats.
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