C70400 is a specific type of copper alloy known as Copper-Nickel-Silicon. Here are the key details about C70400 copper coil:

Chemical Composition:

1. Copper (Cu): Approximately 88.0 - 90.0%

2. Nickel (Ni): Approximately 8.5 - 10.5%

3. Silicon (Si): Approximately 1.5 - 3.0%

4. Other Elements: Includes trace amounts of elements such as iron (Fe), manganese (Mn), and zinc (Zn), typically less than 1.0% each.

Properties:

1. Mechanical Properties: C70400 copper-nickel-silicon alloy offers excellent mechanical strength, toughness, and durability due to its composition. It is known for its high strength and resistance to deformation under mechanical stress.

2. Corrosion Resistance: This alloy provides outstanding corrosion resistance in seawater and various corrosive environments, including acids and alkaline solutions. Its resistance to biofouling (growth of marine organisms) makes it suitable for marine applications.

3. Machinability: C70400 has good machinability, allowing it to be easily fabricated into coils and other components using standard machining processes.

4. Electrical Conductivity: While not as conductive as pure copper, C70400 retains sufficient electrical conductivity for many electrical and electronic applications.

Standards: C70400 copper-nickel-silicon alloy conforms to standards such as ASTM B171/B171M (for plate, sheet, and strip) and ASTM B466/B466M (for seamless copper-nickel pipe and tube).

C70400 is a copper-nickel-silicon alloy, also known as CDA (Copper Development Association) alloy 704. Here is the typical chemical composition of C70400 copper coil:

Copper (Cu): 88.0 - 90.0%

Nickel (Ni): 8.5 - 10.5%

Silicon (Si): 1.5 - 3.0%

Iron (Fe): Maximum 1.0%

Other Elements: Includes trace amounts of elements such as manganese (Mn), zinc (Zn), and other impurities, typically less than 1.0% each.

Key points about the chemical composition:

Copper (Cu): The primary constituent, providing the base metal with its inherent electrical conductivity and corrosion resistance.

Nickel (Ni): A significant alloying element that enhances the alloy's strength, corrosion resistance, and toughness.

Silicon (Si): Adds to the alloy's strength and wear resistance. Silicon also contributes to the alloy's ability to form a protective oxide layer, improving its resistance to corrosion in various environments.

Iron (Fe): Present in limited amounts, iron helps in improving the mechanical properties and machinability of the alloy.

Other Elements: Trace elements such as manganese and zinc are included in minimal quantities to refine the alloy's properties and ensure it meets specified standards.

Properties and Applications:

Mechanical Properties: C70400 copper-nickel-silicon alloy offers high mechanical strength, toughness, and good ductility, making it suitable for applications requiring robust materials that can withstand high mechanical stress and deformation.

Corrosion Resistance: It provides excellent resistance to corrosion in seawater, brine, and various chemical environments. This property makes it ideal for marine applications where exposure to harsh conditions is prevalent.

Machinability: Despite its alloying elements, C70400 maintains good machinability. It can be easily machined into coils and other shapes using standard machining techniques, ensuring efficient production processes.

Electrical Conductivity: While not as conductive as pure copper, C70400 retains sufficient electrical conductivity for many electrical and electronic applications where moderate conductivity requirements are acceptable.

Applications: C70400 copper coil is commonly used in marine hardware, heat exchanger tubes, condenser tubes, valves, pumps, fittings, and other components where corrosion resistance, strength, and reliability are critical.

C70400 copper coil, a type of Copper-Nickel-Silicon alloy, possesses several distinctive features that make it suitable for various demanding applications:

Chemical Composition:

1. Copper (Cu): Approximately 88.0 - 90.0%

2. Nickel (Ni): Approximately 8.5 - 10.5%

3. Silicon (Si): Approximately 1.5 - 3.0%

4. Other Elements: Includes trace amounts of elements such as iron (Fe), manganese (Mn), and zinc (Zn), typically less than 1.0% each.

Mechanical Properties:

1. High Strength: C70400 copper-nickel-silicon alloy exhibits excellent mechanical strength and toughness, making it suitable for applications requiring robust materials that can withstand high mechanical stress and deformation.

2. Ductility: It retains good ductility despite its high strength, allowing for easier forming and shaping during manufacturing processes.

3. Fatigue Resistance: The alloy shows good fatigue resistance, which is beneficial for components subjected to cyclic loading in various applications.

Corrosion Resistance:

1. Excellent Corrosion Resistance: C70400 offers outstanding resistance to corrosion in seawater, brine, and various chemical environments. This property makes it ideal for marine applications where exposure to harsh conditions is prevalent.

2. Biofouling Resistance: It also exhibits resistance to biofouling, which is the accumulation of marine organisms on submerged surfaces, further enhancing its suitability for marine applications.

Machinability:

1. Good Machinability: Despite its alloying elements, C70400 maintains good machinability. It can be easily machined into coils and other shapes using standard machining techniques, ensuring efficient production processes.

Electrical Conductivity:

1. Moderate Electrical Conductivity: While not as conductive as pure copper, C70400 retains sufficient electrical conductivity for many electrical and electronic applications where conductivity requirements are moderate.

Applications:

1. Marine Applications: C70400 is commonly used in marine environments for condenser tubes, heat exchanger tubes, and other seawater-resistant components due to its excellent corrosion resistance and mechanical properties.

2. Industrial: It finds use in various industrial applications such as valves, pumps, and fittings where corrosion resistance and strength are critical.

3. Electrical: Used in electrical connectors and terminals where moderate electrical conductivity and corrosion resistance are required.

4. Automotive: Found in automotive components where resistance to corrosion and wear, as well as good machinability, are important.