The strength of aluminum pipe is usually higher than that of fiberglass pipe. The tensile strength of common 7075 aluminum tubes, for example, can reach 110~136MPa, while the tensile strength of fiberglass tubes, though high, is usually between 100~300MPa. However, fiberglass tubes perform better in terms of corrosion resistance and insulation properties.
I. Strength characteristics of aluminum tubes
Aluminum tube is a tubular material made of aluminum alloy, which has excellent mechanical properties, workability and thermal conductivity. Generally speaking, the strength and stiffness of aluminum tubes are high, and can withstand greater pressure and weight. For example, 7075 aluminum tube is a high-strength aluminum alloy tube with a tensile strength much higher than that of ordinary aluminum and even close to that of steel. This makes the aluminum tube in the need to withstand large moments and high pressure occasions, such as aircraft parts, automobile chassis, ship construction parts and other manufacturing areas have a wide range of applications.
Second, the strength characteristics of fiberglass tube
Fiberglass tube is made of glass fibers as raw materials for tubular materials. Relative to aluminum tubes, fiberglass tubes have a lighter weight and good corrosion resistance and insulation properties. In terms of strength, although the tensile strength of fiberglass tubes is also higher, it is usually lower than that of high-strength aluminum alloys such as 7075 aluminum tubes. However, fiberglass tubes have good dimensional stability and elastic recovery when subjected to stretching, which gives it an advantage in certain applications that require lightweight and corrosion resistance.
Third, the application scenarios and selection basis
In the choice of aluminum or glass fiber tube, according to the specific application scenarios and needs to be weighed. If you need to withstand greater pressure and weight, and the corrosion resistance and insulation performance requirements are not high, aluminum tube is a better choice. For example, in the aerospace industry, aluminum tubes are widely used to manufacture components that are subjected to high loads. Fiberglass tubes are more advantageous where light weight, corrosion resistance and excellent insulation are required, such as in the manufacture of antenna mounts, sunshades and transmission towers.