Copper tubes are the "blood vessels" of the refrigeration system, mainly used in condensers, evaporators and connecting pipelines. Its high thermal conductivity (with a thermal conductivity coefficient of approximately 400 W/m·K) enables rapid heat transfer, enhancing the energy efficiency ratio of air conditioners and refrigerators. The promotion of environmentally friendly refrigerants such as R410A has further driven the development of copper tubes towards high pressure resistance, thin-walled and lightweight. Industry standards such as ASTM B280 (Copper Tubes for Air Conditioning) have strict regulations on indicators such as cleanliness and tensile strength to avoid refrigerant leakage and system blockage.
What are the thermal and electrical conductivity properties of H63 (T27300) Brass Tube? How does it perform in heat exchange and electrical conduction?
H63 (T27300) Brass Tube is an alloy primarily composed of copper and zinc, exhibiting excellent thermal and electrical conductivity, making it suitable for heat exchangers, electrical conduction, and other applications requiring heat or current transfer.
Thermal Conductivity: H63 (T27300) Brass Tube has good thermal conductivity, although lower than pure copper. Pure copper has a thermal conductivity of up to 398 W/m·K, while the thermal conductivity of H63 (T27300) Brass Tube is approximately 120-150 W/m·K. Although this is lower than pure copper, its thermal conductivity is still high enough for most applications requiring efficient heat exchange. H63 (T27300) Brass Tube is commonly used in heat exchangers, cooling systems, and other equipment, particularly in air conditioning and refrigeration systems, where it efficiently conducts heat and maintains good performance.
Application Scenarios: In heat exchangers, the thermal conductivity of H63 (T27300) Brass Tube ensures rapid and uniform heat transfer, thereby improving the system's thermal efficiency. For example, in refrigeration equipment, the thermal conductivity of the brass tubes ensures efficient heat exchange between the refrigerant and the surrounding environment, helping the equipment operate efficiently.
Electrical Conductivity: H63 (T27300) Brass Tube also exhibits good electrical conductivity. Typically, brass has an electrical conductivity of approximately 25-40% IACS (International Annealed Copper Standard), significantly lower than pure copper's 100% IACS. Nevertheless, H63 (T27300) Brass Tube is still suitable for many electrical conduction applications, especially in environments requiring higher mechanical strength and corrosion resistance. Due to its high strength and low resistance, it can still provide effective current conduction in power systems, grounding systems, and other fields.
Application Scenarios: In electrical equipment, H63 (T27300) Brass Tube is commonly used as cable conduits, grounding wires, and some electrical connection components. It provides high current carrying capacity while maintaining good conductivity. The corrosion resistance of H63 (T27300) Brass Tube makes it suitable for electrical systems requiring long-term stable performance, such as power distribution systems and substations.
Which industrial sectors are suitable for H63 (T27300) Brass Tubes?
H63 (T27300) Brass Tubes are widely used in various industrial sectors, becoming an important material choice in many industries due to their excellent physical properties, machinability, and corrosion resistance.
Air Conditioning and Refrigeration Industry: H63 (T27300) Brass Tubes are widely used in air conditioning and refrigeration systems, mainly in components such as heat exchangers, condensers, and evaporators. Due to their excellent thermal conductivity, brass tubes can effectively transfer heat, ensuring efficient heat exchange between the refrigerant and air, maintaining high equipment efficiency.
Automotive Industry: In automotive manufacturing, H63 (T27300) Brass Tubes are mainly used in engine cooling systems, air conditioning systems, radiators, power steering systems, and other components. The excellent thermal conductivity and corrosion resistance of brass tubes make them ideal for use in high-temperature and high-pressure environments, especially in engine and coolant piping systems.
Electronics and Electrical Industry: H63 (T27300) Brass Tubes are commonly used in grounding systems, connecting components, and electrical conduits of electronic devices. The good electrical conductivity of brass allows it to effectively conduct current, while its high strength and corrosion resistance ensure long-term stable operation in electrical systems. It is also suitable for power equipment, electronic components, and electrical connectors.
Construction and Plumbing: H63 (T27300) Brass Tubes are mainly used in water pipes, heating pipes, and heating systems in the construction industry. Due to their good oxidation resistance and corrosion resistance, brass tubes maintain a long service life in environments with prolonged contact with water. They are also widely used in water supply systems, HVAC systems, and home renovations.
Machinery and Industrial Equipment: H63 (T27300) Brass Tubes are also widely used in mechanical processing and industrial equipment manufacturing, especially in components requiring strength and corrosion resistance. They can be used in hydraulic lines, pneumatic systems, liquid transfer pipelines, and other mechanical applications, ensuring the stable operation of the system.
Chemical and Petroleum Industries: In chemical plants and the petroleum industry, H63 (T27300) Brass Tube can withstand certain chemical corrosion and high-temperature environments, and is commonly used for the transmission of liquids and gases, especially in piping systems in the petrochemical industry. It provides reliable performance in a variety of harsh environments.
What are the advantages of H63 (T27300) Brass Tube in the automotive and machinery industries?
H63 (T27300) Brass Tube offers numerous advantages in the automotive and machinery industries due to its unique properties.
Advantages in the Automotive Industry:
- Engine Cooling Systems: H63 (T27300) Brass Tube is widely used in automotive engine cooling systems. Due to its excellent thermal conductivity, it effectively conducts heat, helping the engine maintain an appropriate operating temperature. Especially during high-load operation, H63 (T27300) Brass Tube ensures efficient heat exchange between the coolant and the radiator, preventing engine overheating and improving engine performance and lifespan.
- Air Conditioning and Cooling Systems: In automotive air conditioning and cooling systems, the corrosion resistance and thermal conductivity of H63 (T27300) Brass Tube make it an ideal choice. It not only effectively transfers heat but also withstands varying operating environments, including high temperatures, humidity, and chemical corrosion, ensuring the long-term stable operation of the automotive air conditioning system.
- High-Temperature Resistance: H63 (T27300) Brass Tube maintains good mechanical strength and corrosion resistance under high-temperature conditions, which is crucial for applications in high-temperature environments such as automotive engines and exhaust systems. It can withstand the high-temperature gases in the engine exhaust system, preventing material deformation or failure due to excessive temperature.
Advantages in the Machinery Industry:
- Hydraulic and Pneumatic Systems: In hydraulic and pneumatic systems of mechanical equipment, H63 (T27300) Brass Tube, with its high strength and pressure resistance, can withstand the high-pressure transmission of liquids and gases. It is widely used in hydraulic pipelines, pneumatic lines, and other fields, ensuring the stable and efficient operation of equipment.
- Corrosion and Wear Resistance:
The corrosion resistance and wear resistance of H63 (T27300) Brass Tube make it perform exceptionally well in the machinery industry. Especially in harsh working environments, it can resist corrosion from chemicals, liquids, and gases, thus avoiding frequent repairs and replacements. It is also suitable for mechanical cooling systems and lubrication oil systems, effectively extending the service life of equipment.
- Machinability and Formability:
H63 (T27300) Brass Tube has excellent machinability and can meet the needs of various complex mechanical equipment through precision machining and forming. Whether in high-precision pipelines, equipment connection components, or large-sized pipes, H63 (T27300) Brass Tube provides efficient and reliable solutions.
Advantages of Zhejiang Jingliang Copper-Tube Products Co.,Ltd: As a leader in the copper tube industry, Zhejiang Jingliang Copper-Tube Products Co.,Ltd has a significant advantage in providing H63 (T27300) Brass Tube to the automotive and machinery industries, thanks to its strong production capacity and technological advantages. Since its establishment in 1994, the company has accumulated rich industry experience and produced a large number of high-quality copper tube products, including H63 (T27300) Brass Tube, which are widely used in domestic and international markets.
Complete Industrial Chain Advantage: Zhejiang Jingliang Copper-Tube Products Co.,Ltd integrates a complete industrial chain from smelting, extrusion, drawing, precision rolling to annealing, enabling it to provide high-precision, high-strength brass tube products for the automotive and machinery industries. Through advanced production processes and strict quality control, the company ensures that every H63 (T27300) Brass Tube meets high-standard quality requirements.
Customized Services: The company also provides customized H63 (T27300) Brass Tube solutions to meet the needs of different specifications, lengths, and shapes in the automotive and machinery industries. Whether in cooling systems, cooling pipelines, or hydraulic and pneumatic systems, Zhejiang Jingliang Copper-Tube Products Co.,Ltd can provide tailor-made products according to customer needs, ensuring optimal performance for each project.
Strong Market Competitiveness: In terms of production capacity, Zhejiang Jingliang Copper-Tube Products Co.,Ltd produces over 7,500 tons of brass tubes annually and possesses strong brand value and technological research and development capabilities, making it the preferred supplier for many domestic and international automotive and machinery industry customers.