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.
How do the thermal and electrical conductivity of H65 (C27000) Brass Tubes compare to other alloy materials?
H65 (C27000) Brass Tubes exhibit above-average performance in terms of thermal and electrical conductivity, making them particularly suitable for applications requiring both good thermal conductivity and a certain level of corrosion resistance. As an alloy of copper and zinc, H65 (C27000) Brass Tubes inherit the excellent thermal and electrical conductivity of copper, while the addition of zinc improves its strength and machinability. Although the thermal and electrical conductivity of H65 brass is lower than that of pure copper, it still demonstrates good performance in many engineering applications.
Thermal Conductivity:
The thermal conductivity of H65 (C27000) Brass Tubes is typically between 150-200 W/m·K, which is slightly lower than pure copper (approximately 398 W/m·K) and aluminum (approximately 205 W/m·K). Despite the lower thermal conductivity, H65 (C27000) Brass Tubes still provide sufficient heat transfer efficiency in most heat exchange applications. In heat exchangers, condensers, and other equipment requiring efficient heat dissipation, H65 (C27000) Brass Tubes can meet heat dissipation requirements while offering superior corrosion resistance and good mechanical properties.
Electrical Conductivity:
The electrical conductivity of H65 (C27000) Brass Tubes is generally about 30-40% IACS (International Annealed Copper Standard), significantly lower than pure copper (approximately 100% IACS), but still relatively good compared to other alloy materials (such as stainless steel or aluminum alloys). The electrical conductivity of brass tubes makes them suitable for some electrical equipment, especially in electrical connections, grounding systems, and environments requiring low resistance, providing a reliable conductive path.
It's important to note that due to the addition of zinc, the electrical conductivity of brass tubes is not as high as that of pure copper. Therefore, in applications requiring extremely high electrical conductivity (such as power transmission systems), pure copper materials may be more suitable. However, for applications that do not require extremely high conductivity, H65 (C27000) Brass Tube can provide sufficient conductivity while offering better mechanical strength and corrosion resistance.
Comparison with other alloy materials:
Compared to aluminum alloys, H65 (C27000) Brass Tube is slightly inferior in thermal conductivity, but its superior corrosion resistance, higher strength, and wear resistance make it more suitable for environments requiring resistance to high temperatures and chemical media. Compared to stainless steel, H65 (C27000) Brass Tube has advantages in electrical and thermal conductivity, but stainless steel is more outstanding in stability and oxidation resistance under high pressure and high temperature environments. Therefore, H65 (C27000) Brass Tube is an ideal material for applications requiring heat exchange, electrical connections, and high corrosion resistance.
What are the advantages of H65 (C27000) Brass Tubes in the automotive industry?
H65 (C27000) brass tubes offer several advantages in the automotive industry, particularly in applications requiring high strength, corrosion resistance, and excellent thermal conductivity and machinability. Due to their mechanical properties, thermal performance, and chemical stability, brass tubes are widely used in automotive manufacturing and components, especially in cooling systems, air conditioning systems, and electronic and electrical systems.
Efficient Heat Dissipation:
In automotive engines and cooling systems, H65 (C27000) brass tubes are commonly used in radiators, oil coolers, and liquid cooling systems. H65 (C27000) brass tubes have excellent thermal conductivity, allowing for rapid and efficient heat transfer, thus ensuring stable engine temperature. This is crucial for improving engine efficiency, reducing overheating, and extending engine life. Compared to aluminum tubes, H65 (C27000) brass tubes maintain their stability and performance better in certain high-temperature environments, especially in applications requiring resistance to higher pressures and temperatures.
Corrosion Resistance:
During vehicle operation, especially when exposed to moisture, salt, and various chemical media, automotive system components are often prone to corrosion. The corrosion resistance of H65 (C27000) brass tubes makes them an ideal material in the automotive industry. They maintain long-term stable performance in chemical environments such as coolants, refrigerants, and antifreeze, preventing pipe blockage or leakage caused by corrosion.
Strength and Machinability:
H65 (C27000) brass tubes possess high strength and good machinability, enabling them to withstand high mechanical loads. They are suitable for use in the tubing sections of automotive cooling systems and electronic devices, which often need to withstand certain mechanical stress and high-pressure environments. H65 (C27000) brass tubes are easy to precisely form, bend, and weld during processing, adapting to the complex design requirements of automotive components. * **High Temperature Resistance:**
In automotive engines and exhaust systems, components often face high-temperature environments. H65 (C27000) Brass Tube exhibits good high-temperature resistance, maintaining its strength and stability at high temperatures. Furthermore, the oxidation resistance of brass tubes prevents surface oxidation in high-temperature environments, thus improving the long-term reliability of the system.
Applications in Electrical Systems:
H65 (C27000) Brass Tube also has widespread applications in automotive electronic and electrical systems. It is commonly used for electrical connections, grounding, and wire protection. The good electrical conductivity of brass makes it suitable for important components such as battery electrodes and electrical connection points. In addition, the corrosion resistance of H65 (C27000) Brass Tube allows it to operate stably for a long time in automotive electrical systems, especially in humid and dusty environments.
What are the processing properties of H65 (C27000) Brass Tube?
H65 (C27000) Brass Tube is widely used in various industrial fields due to its excellent processing performance, especially in machining, welding, and cold working processes. Zhejiang Jingliang Copper-Tube Products Co., Ltd., with its years of industry experience and advanced manufacturing technology, can provide customers with high-quality H65 (C27000) Brass Tube products that meet different process requirements.
Excellent Cold Working Performance:
H65 (C27000) Brass Tube has very good cold working performance, maintaining its shape stability during cold drawing and cold bending processes, and avoiding cracks or surface defects. Cold working effectively improves the strength and hardness of the tubing, and H65 (C27000) Brass Tube performs particularly well in applications requiring precise dimensions and high surface finish. In the automotive manufacturing and electronics industries, the cold working performance of H65 (C27000) Brass Tube allows it to meet strict dimensional tolerance requirements.
Suitable for Hot Working and Extrusion:
H65 (C27000) Brass Tube is also suitable for hot working processes, including hot extrusion and hot drawing. During these processes, H65 (C27000) Brass Tube maintains good processing and mechanical properties, making it particularly suitable for producing large-sized and complex-shaped tubing. Zhejiang Jingliang Copper-Tube Products Co., Ltd. has a strong production line and can provide customized production according to customer needs, ensuring the quality and precision of the tubing.
Welding Performance:
H65 (C27000) Brass Tube has good welding performance and is suitable for connection using common welding methods, such as TIG welding and brazing. During the welding process, H65 (C27000) Brass Tube can form high-strength welded joints, ensuring the stability and reliability of the entire system. Zhejiang Jingliang Copper-Tube Products Co., Ltd. possesses extensive experience in welding technology, ensuring optimal product performance after welding and preventing equipment failures caused by welding quality issues.
Machining Performance:
H65 (C27000) Brass Tube exhibits excellent machinability, suitable for high-precision turning, milling, and drilling processes. The lower hardness of the brass tube results in less friction during processing, reducing tool wear and heat buildup, thus improving processing efficiency. For mechanical components requiring precise bore diameters and complex shapes, H65 (C27000) Brass Tube ensures smooth surfaces and accurate dimensions during processing.
Surface Treatment Performance:
H65 (C27000) Brass Tube can undergo various surface treatments, such as electroplating and spraying, to enhance its corrosion resistance and aesthetics. Common surface treatments include nickel plating and chromium plating. These treatments not only enhance the brass tube's oxidation resistance but also improve its appearance, meeting various industrial design requirements. Zhejiang Jingliang Copper-Tube Products Co., Ltd. can also provide surface treatment services according to customer needs to ensure the quality of the final product.
Adaptability to Diverse Industry Needs:
Due to its superior machining performance, H65 (C27000) Brass Tube is widely used in various industries, including automotive, air conditioning, refrigeration, electronics, electrical, and chemical industries. Zhejiang Jingliang Copper-Tube Products Co., Ltd., through its strong production capacity and technical expertise, can provide high-quality H65 (C27000) Brass Tube products to these industries, meeting their diverse needs for tubing. Especially in the automotive and electronics industries, the machining performance of H65 (C27000) Brass Tube allows it to provide stable performance even under high-precision and high-strength requirements.
As a leading enterprise in the copper tube industry, Zhejiang Jingliang Copper-Tube Products Co., Ltd. has accumulated rich production and processing experience since its establishment in 1994. The company focuses on producing high-quality copper tubes, brass tubes, and other products, possessing advanced technical equipment and strong production capabilities. The following are some of the company's advantages in processing H65 brass tubes:
Strong Production Capacity:
Zhejiang Jingliang Copper-Tube Products Co., Ltd. boasts a production base of over 20,000 square meters and a building area of 12,800 square meters, with an annual output exceeding 7,500 tons. This allows us to provide large quantities of high-precision H65 brass tubes to meet diverse customer needs.
Advanced Technological Support:
The company utilizes advanced production processes and intelligent manufacturing technologies to ensure that every H65 (C27000) brass tube meets high-quality standards during production. Through precise processing and strict quality control, Zhejiang Jingliang Copper-Tube Products Co., Ltd. guarantees the stability and excellent processing performance of every tube.
Comprehensive After-Sales Service:
Zhejiang Jingliang Copper-Tube Products Co., Ltd. provides comprehensive technical support and after-sales service to ensure that customers receive timely feedback and assistance when purchasing and using H65 (C27000) brass tubes. The company continuously improves its service quality to provide customers with more convenient and efficient solutions.
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Tangpu Industrial Zone, Shangyu District, Shaoxing City, Zhejiang Province, China
+86-13567501345
