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Copper mesh, also known as purple copper net, is a woven wire mesh made from high-purity copper. It is valued for its excellent electrical conductivity, thermal conductivity, corrosion resistance, and ductility, making it widely used in various industries. The mesh is characterized by its “mesh count,” which refers to the number of openings per linear inch (25.4 mm). A higher mesh count indicates smaller openings and finer filtration, while a lower mesh count means larger openings for coarser applications.

Our Products: 40 Mesh and 100 Mesh Copper Mesh

We offer both 40 mesh and 100 mesh copper mesh to meet diverse application needs:

40 Mesh Copper Mesh

• Description: This mesh has 40 openings per inch, resulting in relatively larger holes with an aperture size of approximately 0.4–0.5 mm (depending on wire diameter).
• Applications: Ideal for coarse filtration, shielding, or decorative purposes. Commonly used in industries like construction, agriculture, or for EMI/RFI shielding in electronics due to its balance of openness and durability.
• Features: Offers good airflow and visibility while maintaining strength and corrosion resistance.

100 Mesh Copper Mesh

• Description: With 100 openings per inch, this mesh has smaller holes, with an aperture size of approximately 0.14–0.15 mm (depending on wire diameter). It is a finer mesh suitable for precision applications.
• Applications: Perfect for fine filtration in industries such as chemical processing, pharmaceuticals, or food production. It is also used in scientific research for particle separation or as a conductive layer in electronic components.
• Features: Provides high precision filtration, excellent conductivity, and resistance to corrosion in harsh environments.

Why Choose Our Copper Mesh?

• Material Quality: Made from high-purity copper, ensuring superior conductivity and longevity.
• Versatility: Available in 40 mesh for coarser applications and 100 mesh for finer filtration, catering to diverse needs.
• Customization: We can provide tailored specifications, including different wire diameters or roll sizes, to meet specific requirements.

Whether you need robust shielding with 40 mesh or precise filtration with 100 mesh, our copper mesh offers reliable performance for industrial, scientific, or decorative applications. Contact us for more details or to discuss your specific needs!

Copper alloys are widely used in industries for their excellent electrical conductivity, thermal conductivity, and corrosion resistance. Two commonly referenced standards, the American ASTM and the Chinese GB, define similar copper grades that are often interchangeable. This article compares C110 (ASTM) with T2 (GB) and C122 (ASTM) with TP2 (GB) to clarify their equivalence and applications.

1. C110 vs. T2 Copper

C110 (also known as C11000 or Electrolytic Tough Pitch copper, ETP) and T2 (per Chinese GB/T 5231-2012) are high-purity copper grades designed for superior electrical and thermal conductivity.

Chemical Composition

Both grades have nearly identical copper purity, with slight variations in oxygen and impurity limits that rarely impact practical use.

Properties and Applications

• Conductivity: Both achieve an IACS (International Annealed Copper Standard) rating of 97-100%, ideal for electrical wiring, busbars, and conductors.
• Thermal Conductivity: Approximately 386.4 W/(m·K), suitable for heat exchangers and radiators.
• Workability: Excellent ductility allows cold and hot forming, welding, and brazing. However, due to trace oxygen, they are susceptible to “hydrogen embrittlement” in high-temperature reducing atmospheres.
• Corrosion Resistance: Outstanding in atmospheric conditions, seawater, and non-oxidizing acids.

Applications: C110/T2 copper is used in electrical cables, connectors, screws, and heat exchanger components in aerospace, electronics, and chemical industries.

Standards Equivalence

C110 (ASTM C11000) directly corresponds to T2 (GB). It also aligns with:

• JIS C1100 (Japan)
• Cu-ETP (CW004A) (European EN standard)

2. C122 vs. TP2 Copper

C122 (C12200, Deoxidized High Phosphorus copper, DHP) and TP2 (GB/T 5231-2012) are phosphorus-deoxidized copper grades with low oxygen content, designed for applications requiring welding and resistance to hydrogen embrittlement.

Chemical Composition

The identical copper and phosphorus content ensures equivalent performance in low-oxygen environments.

Properties and Applications

• Conductivity: Slightly lower than C110/T2 at ~80-85% IACS, but sufficient for many electrical applications.
• Thermal Conductivity: Around 339 W/(m·K), excellent for heat transfer.
• Workability: Superior weldability and formability, with no risk of hydrogen embrittlement in reducing atmospheres.
• Corrosion Resistance: Comparable to C110/T2, ideal for water and gas systems.

Applications: C122/TP2 is preferred for refrigeration tubing, air conditioning coils, plumbing, gas pipelines, and marine systems due to its welding advantages.

Standards Equivalence

C122 (ASTM C12200) directly corresponds to TP2 (GB). It also aligns with:

• JIS C1220 (Japan)
• Cu-DHP (CW024A) (European EN standard)

Key Considerations

• Interchangeability: C110/T2 and C122/TP2 are interchangeable in most applications, but C122/TP2 is preferred for welded components and high-temperature environments.
• Condition: Both grades are available in soft (annealed, e.g., T2M/TP2M, O temper) or hard (e.g., T2Y/TP2Y, H temper) states, selected based on processing needs.
• Specifications: For critical applications (e.g., aerospace or electronics), verify oxygen or impurity limits per ASTM or GB standards.

Conclusion

C110 and T2 are equivalent high-purity electrolytic copper grades, while C122 and TP2 are equivalent phosphorus-deoxidized copper grades. Their identical compositions and properties ensure seamless use across international projects, with C110/T2 excelling in conductivity and C122/TP2 in welding and hydrogen embrittlement resistance. Understanding these equivalences simplifies material selection in global engineering applications.