Gnee Steel (Tianjin) Co., Ltd.

Thick-walled copper tubing

Aug 19, 2025

Thick-walled brass tubing, as a high-performance metal tubing material, plays a crucial role in industrial production and daily life. This article will provide a detailed overview of the characteristics, manufacturing processes, application areas, and significance of thick-walled brass tubing in modern industry.
1. Basic Characteristics of Thick-walled Brass Tubing

Thick-walled brass tubes are made from brass, an alloy of copper and zinc, with copper content typically ranging from 60% to 70% and zinc content from 30% to 40%. This alloy retains copper's excellent electrical conductivity and thermal conductivity while enhancing hardness and strength through the addition of zinc. Thick-walled brass tubes thus possess the following notable characteristics:
1. High strength and hardness: Thick-walled brass tubes can withstand significant pressure and tensile force, resisting deformation or rupture, making them suitable for applications requiring high stress resistance.

2. Excellent corrosion resistance: Brass exhibits good resistance to most chemical substances and is not easily corroded, making it suitable for corrosive environments.

3. Excellent thermal conductivity: Brass has superior thermal conductivity, making thick-walled brass tubes an ideal choice for heat exchangers and condensers.

4. Easy to process and connect: Brass tubes are easy to cut, bend, and connect, reducing installation difficulty and costs.

5. Aesthetic and durable: Brass has a lustrous golden yellow color, which is not only aesthetically pleasing but also durable and resistant to fading.

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copper pipe for natural gas
annealed copper pipe
thin copper pipe

II. Production Process of Thick-Wall Brass Tubes

The production process of thick-wall brass tubes primarily includes extrusion, drawing, welding, and seamless methods.

1. Extrusion method: By placing heated brass billets into an extruder and applying high pressure, the material is extruded into tubular form. This method can produce brass tubes of varying diameters and wall thicknesses with high production efficiency.

2. Drawing method: A hollow copper tube blank is first prepared, then drawn into the desired diameter and wall thickness using a drawing machine. The drawing method allows precise control over the dimensions and shape of the tubing, making it suitable for producing high-precision tubing.

3. Welding Method: Brass sheets or billets are welded into tubular shapes using welding equipment, then further processed to form finished brass tubing. The welding method is suitable for producing large-diameter or special-shaped tubing.

4. Seamless method: Using advanced seamless tube production equipment, the brass blank is heated to an appropriate temperature, then processed through methods such as rotation and extrusion to produce seamless brass tubes. Brass tubes produced by the seamless method have higher strength and better sealing performance, making them suitable for high-pressure and high-temperature working environments. During production, manufacturers will select the appropriate production process based on customer requirements and product application scenarios to ensure that the quality and performance of thick-walled brass tubes reach optimal levels.

III. Application Areas of Thick-Wall Brass Tubes

Thick-wall brass tubes demonstrate extensive application value across multiple industries due to their unique properties. In the refrigeration and air conditioning industry, their excellent thermal conductivity makes them core components of heat exchangers and condensers; in shipbuilding, their high strength and corrosion resistance make them an ideal choice for seawater cooling systems; in the construction industry, thick-wall brass tubes are used in water supply systems and gas pipelines, ensuring safety and stability. Additionally, in fields such as chemicals, power, and healthcare, thick-walled brass tubes also play an irreplaceable role.

With the advancement of technology and industrial development, the application areas of thick-walled brass tubes will continue to expand, and their importance in modern industry will become increasingly prominent. As a high-performance metal tubing material, thick-walled brass tubes are contributing to the development of various industries with their practicality and aesthetic appeal.

about Us

The company has a cluster of leading copper processing production lines in China, including:
German imported precision copper tube production line (annual output of 30,000 tons)
Japanese technology copper foil rolling line (thinnest up to 6μm)
Fully automatic copper bar continuous extrusion line
Intelligent copper sheet and strip finishing mill unit
Digitalized control and management of the whole production process is realized through MES system, and the dimensional accuracy of the products can reach ±0.01mm.

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