Hey there! As a supplier of Aluminium Round Tubing, I get asked a lot about the thermal conductivity of our product. Today, I’m gonna break it down for you in a way that’s easy to understand. Aluminium Round Tubing

First off, let’s talk about what thermal conductivity actually means. Simply put, thermal conductivity is a measure of how well a material can transfer heat. The higher the thermal conductivity, the better a material is at conducting heat. When it comes to Aluminium Round Tubing, this property is super important, especially in applications where heat transfer is crucial.
Aluminium is known for having a relatively high thermal conductivity. On the scale of thermal conductivity, it’s right up there among the good conductors. The thermal conductivity of pure aluminium is around 237 W/(m·K). Now, our Aluminium Round Tubing isn’t usually made of 100% pure aluminium. It often contains small amounts of other elements to improve its strength, corrosion resistance, and other properties. These alloying elements can have a bit of an impact on the thermal conductivity.
For most of the Aluminium Round Tubing we supply, the thermal conductivity ranges from about 180 – 220 W/(m·K). This is still pretty high compared to a lot of other metals and materials. For example, stainless steel has a much lower thermal conductivity, usually in the range of 15 – 20 W/(m·K). So, if you need a material that can quickly and efficiently transfer heat, aluminium round tubing is a great choice.
But why is this high thermal conductivity so useful? Well, there are tons of applications where it really shines. One of the most common uses is in heat exchangers. In a heat exchanger, the goal is to transfer heat from one fluid to another. Aluminium Round Tubing’s high thermal conductivity allows it to do this job really well. It can quickly absorb heat from a hot fluid and transfer it to a cooler fluid, making the whole heat exchange process more efficient.
Another area where the thermal conductivity of Aluminium Round Tubing is important is in the automotive industry. In cars, there are many components that generate heat, like engines and radiators. Aluminium Round Tubing can be used to make parts that help dissipate this heat, keeping the engine and other components cool. This is crucial for the performance and longevity of the vehicle.
In the electronics industry, too, Aluminium Round Tubing is a popular choice. Electronic devices generate a lot of heat, and if this heat isn’t dissipated properly, it can damage the components. By using Aluminium Round Tubing with its high thermal conductivity, manufacturers can design better cooling systems for their devices. This helps to improve the reliability and performance of the electronics.
Now, let’s get a bit more technical about how the thermal conductivity of Aluminium Round Tubing works. The heat transfer in aluminium tubing mainly occurs through two mechanisms: conduction and convection. Conduction is the transfer of heat through the material itself. When one end of the tubing is heated, the atoms in that area start to vibrate more vigorously. These vibrating atoms then pass on their energy to neighboring atoms, and the heat gradually spreads through the tubing.
Convection, on the other hand, happens when a fluid (like air or a liquid) flows over the surface of the tubing. As the fluid moves, it carries away the heat from the tubing’s surface. The high thermal conductivity of aluminium allows it to quickly transfer heat from the inside of the tubing to the surface, where it can be removed by convection.
The size and thickness of the Aluminium Round Tubing also play a role in its thermal conductivity. Generally, thinner-walled tubing will have better thermal conductivity because the heat doesn’t have to travel as far through the material. However, thinner tubing may be less strong, so there’s a bit of a trade-off. In applications where both strength and good thermal conductivity are needed, we can help you choose the right wall thickness.
The surface finish of the tubing can also affect its thermal performance. A smooth surface finish can reduce the resistance to heat transfer, allowing the heat to flow more easily. That’s why we often offer different surface finishes for our Aluminium Round Tubing to meet the specific needs of our customers.
When it comes to choosing the right Aluminium Round Tubing for your project, understanding its thermal conductivity is just one factor. You also need to consider other properties like strength, corrosion resistance, and cost. But in situations where heat transfer is a top priority, the high thermal conductivity of our Aluminium Round Tubing gives it a big advantage.
We’ve been in the business of supplying Aluminium Round Tubing for a long time, and we’ve got a wide range of products to meet different needs. Whether you need tubing for a small DIY project or a large industrial application, we can provide the right solution.
If you’re interested in learning more about our Aluminium Round Tubing or have a specific project in mind, don’t hesitate to reach out. We’re here to help you make the best choice for your needs. We can provide samples, technical specifications, and even offer advice on how to use our tubing effectively.

So, if you think Aluminium Round Tubing with its great thermal conductivity could be the right fit for your next project, get in touch with us. We’re looking forward to working with you and helping you succeed with your heat transfer requirements.
Ss Capillary Tube References:
- Handbook of Thermophysical Properties of Materials
- Aluminium Association Publications on Aluminium Properties
Zhangjiagang Channel Int’l Co., Ltd.
Zhangjiagang Channel Int’l Co., Ltd. is known as one of the most professional aluminium round tubing manufacturers and suppliers in China. Please be free to buy customized aluminium round tubing made in China here and get free sample from our factory.
Address: Dept 2118, 21st Floor, Building C#, Enjoy Plaza, No.338 Jingang Road, Yangshe Town, Zhangjiagang City, Jiangsu Province, P. R. China
E-mail: sales@channelmetal.com
WebSite: https://www.channelmetal.com/