As one of today's highly sought-after materials worldwide, carbon fiber boasts numerous performance advantages that have led to its adoption in medical devices, rail transit, automotive manufacturing, and other fields. This article will delve into the thermal properties of carbon fiber, helping you better understand this remarkable material.
During production, carbon fiber undergoes high-temperature carbonization, enabling it to withstand operating temperatures exceeding 1,000°C. However, for practical applications, carbon fiber is typically not used alone. Instead, it is combined with resin or other matrix materials to form composites. Since resins cannot endure such extreme heat, carbon fiber products generally operate around 150°C.
The coefficient of thermal expansion (CTE) measures how much a material expands or contracts in response to temperature changes, expressed as the change in length per unit temperature change. To illustrate, let's compare common structural materials:
T300 carbon fiber: CTE = −0.74 × 10⁻⁶/°C (20–70°C)
Aluminum: CTE = 23 × 10⁻⁶/°C
Iron: CTE = 12 × 10⁻⁶/°C
A lower CTE means less dimensional deformation under temperature variations, ensuring greater stability.
Carbon fiber also excels in thermal conductivity, efficiently transferring heat to-or absorbing it from-contacting materials.
As a leading manufacturer of carbon fiber products, High Gain Industrial Limited is equipped with advanced production lines for fiber-reinforced composite sheets, tubes, compression molding, autoclave processing, and CNC machining. Supported by large-scale equipment and a team of seasoned technicians, we remain committed to delivering high-quality carbon fiber solutions.
