Copper Plate

Overview of copper plate

Copper plates are flat, thin sheets of copper that find application in industries ranging from electrical engineering and construction to sculpture and cookware. Key parameters defining their characteristics and usability are:

  1. Thickness: Measured in millimeters (mm) or gauge (especially in the U.S.), copper plate thickness can vary significantly to suit different applications. Thinner plates are more malleable and suitable for etching or forming, while thicker plates provide greater structural integrity.
  2. Dimensions: Copper plates come in various sizes, typically specified by length and width. Standard sizes may vary by manufacturer, but custom cuts are often available to meet specific project needs.
  3. Grade/Purity: Copper plates can be manufactured to different purity levels, with common grades including Electrolytic Tough Pitch (ETP) copper, Oxygen-Free High Thermal Conductivity (OFHC) copper, and phosphor bronze. Purity levels impact conductivity, corrosion resistance, and other properties.
  4. Surface Finish: The surface of a copper plate can be smooth, polished, brushed, or rough, depending on the intended use. A smooth finish is preferred for electrical applications, while a textured finish may be desired for decorative or architectural uses.
  5. Temper: Copper plates can be supplied in different tempers, such as soft, half-hard, or hard. The temper influences the plate’s malleability, hardness, and springiness, affecting its suitability for bending, stamping, or other forming processes.
  6. Conductivity: A crucial parameter for copper plates used in electrical applications, conductivity measures how efficiently the material conducts electricity. It’s often expressed as a percentage of IACS.
  7. Thermal Conductivity: Copper is known for its high thermal conductivity, making copper plates ideal for heat sinks, cookware, and other applications requiring efficient heat transfer.
  8. Corrosion Resistance: While copper naturally corrodes to form a protective patina, certain alloys or surface treatments can enhance its corrosion resistance for harsh environments.
  9. Tensile Strength: This measures the maximum stress the copper plate can withstand before it fractures, an important consideration for applications involving mechanical loads.

  10. Elongation: Elongation at break indicates the ductility of the copper plate, or how much it can stretch before breaking, which is crucial for forming operations.

copper plate

Specifications of Copper Plate

Characteristics and advantages of copper plate

High thermal conductivity: The excellent thermal conductivity of copper makes it an ideal material for radiators and heat exchange equipment.

Corrosion resistance: Strong anti-oxidation ability, suitable for high temperature, humid or chemical environment.

Electromagnetic shielding: It can effectively shield electromagnetic interference (EMI) and is suitable for electronic equipment protection.

Easy to process: It can be stamped, cut, and polished to meet different industrial needs.

Beautiful and durable: The surface can be plated or polished, which is both functional and decorative.

Application of copper plate

Electronic heat dissipation: CPU heat sink, LED substrate, power module cooling.

Industrial equipment: Vacuum coating target, electrode, bearing gasket.

Electromagnetic shielding: Electronic instrument housing, communication equipment shielding cover.

Decoration and art: relief, medals, crafts.

Food processing: baking molds, chocolate making tools (food grade copper).

Company Profile

Copper-group is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality copper and relatives products.

The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.

If you are looking for high-quality copper products, please feel free to contact us or click on the needed products to send an inquiry.

Payment Methods

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment

It could be shipped by sea, by air, or by reveal ASAP as soon as repayment receipt.

5 FAQs of copper plate

Is copper plate suitable for high-frequency circuit applications?

Yes, high-purity oxygen-free copper (such as C10100) can reduce signal loss.

How to prevent the copper plate from oxidizing and turning black?

Store in a dry environment, or perform electroplating (such as nickel plating, tin plating).

Which is better in terms of heat dissipation performance, copper plate or aluminum plate?

Copper conducts heat faster (385 W/m·K vs aluminum 237 W/m·K), but aluminum is lighter and has a lower cost.

Can copper plates be used for food contact?

Food-grade copper (such as C11000) must be used and meet FDA/EC standards.

How to choose the thickness of the copper plate?

Depends on the application: 0.5–3mm is commonly used for heat sinks, and thicker (5–10mm) is required for structural parts.Characteristics and advantages of copper plate

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