Carbon Fiber Rods - The Best Choice for Your Projects

carbon fiber rods

What are Carbon Fiber Rods?

Carbon fiber rods are lightweight, strong, and flexible rods made from carbon fiber. Carbon fiber is a composite material made from carbon fibers and resin. The carbon fibers are extremely strong, while the resin provides the necessary stiffness and durability. When these two materials are combined, they create a material that is lightweight, flexible, and strong.

Carbon fiber rods are used in a variety of industries, including aerospace, automotive, sports, and recreational activities. They are often used in applications where weight, strength, and durability are critical, such as aircraft and rocket components, racing cars, and high-performance sports equipment.

How are Carbon Fiber Rods Made?

Carbon fiber rods are mainly made by pultrusion process,which is as follows

  1. Material preparation: First, raw carbon fiber filaments are woven into sheets, which are then impregnated with a resin to form prepreg material. The prepreg is then cut into strips or sheets of specific dimensions.

  2. Preheating: The prepreg material is preheated to a specific temperature to make it easier to handle during the pultrusion process.

  3. Pultrusion: The preheated prepreg material is fed into a heated die, which is then pulled through a series of shaping and cooling zones. As the prepreg passes through the die, it is shaped into a continuous rod, tube, or other cross-sectional shape.

  4. Cutting: Once the pultruded carbon fiber rod has passed through the shaping and cooling zones, it is cut to the desired length using a saw or other cutting tool.

There is a kind of 3k glossy surface carbon fiber rod, which is made by polishing the ordinary carbon fiber rod and then rolling it with a pipe rolling machine. This kind of product has a more beautiful appearance and a slightly improved shear strength. For details, please click on the picture below.

Parameters of carbon fiber rods

Performance ParameterTypical Value Range
Tensile strength500-900 MPa
Tensile modulus20-70 GPa
Compressive strength250-500 MPa
Flexural strength600-900 MPa
Density1.5-1.7 g/cm3
Thermal conductivity1.7-3.0 W/mK
Corrosion resistanceExcellent
Fatigue resistanceExcellent

Note that these values are general guidelines and may vary depending on the specific manufacturing process and the grade of carbon fiber used. Additionally, other factors such as the cross-sectional shape and size of the rod may also affect its performance.

Factors that affect the strength of carbon fiber rods include:

  1. Fiber quality: The strength of a carbon fiber rod depends on the quality of the fibers used. High-quality carbon fibers typically have higher strength and stiffness.

  2. Fiber orientation: The orientation of the fibers affects the strength and stiffness of carbon fiber rods. The properties of the fibers are different in different directions, so the fiber orientation must be carefully controlled during manufacturing.

  3. Resin properties: The resin used in carbon fiber rods is typically used to bond the fibers together and provide additional strength and stiffness. The properties of the resin can affect the overall performance of the carbon fiber rod.

  4. Fiber volume fraction: The fiber volume fraction refers to the proportion of fibers in the entire rod. A higher fiber volume fraction typically results in higher strength and stiffness.

  5. Manufacturing process: The manufacturing process for carbon fiber rods has a significant impact on their performance. For example, the baking temperature and time for the carbon fiber rod, as well as the number of fiber layers, can affect its strength and stiffness.

  6. External environment: Carbon fiber rods can be damaged to varying degrees in different external environments. For example, exposure to high temperatures or humidity may reduce the strength of a carbon fiber rod.

These are some of the main factors that affect the strength of carbon fiber rods, and each factor must be carefully considered and controlled to ensure the final performance of the carbon fiber rod meets the required specifications.

The following video shows the high-strength carbon fiber rods produced by our company. They have a diameter of 4.5mm, a length of 350mm, and can withstand a tensile force of 420N with a test span of 260mm. This strength is higher than most of the carbon fiber rods with the same diameter on the market.

Benefits of Carbon Fiber Rods

Carbon fiber rods offer a range of benefits over other materials, such as steel and aluminum. One of the primary benefits is their strength-to-weight ratio. Carbon fiber rods are much lighter than steel or aluminum rods of the same strength, making them ideal for applications where weight is a critical factor.

Carbon fiber rods are also highly resistant to corrosion and fatigue. They do not rust or degrade over time, making them a durable and long-lasting option. In addition, carbon fiber rods are highly flexible, allowing them to absorb shock and vibrations without breaking.

Applications of Carbon Fiber Rods

Carbon fiber rods are used in a variety of applications, including aerospace, automotive, sports, and recreational activities. In aerospace, carbon fiber rods are used in the construction of aircraft components, such as wings, fuselages, and landing gear.

In the automotive industry, carbon fiber rods are used in high-performance racing cars and sports cars. They are often used in the suspension system and chassis, where their strength and flexibility are critical.

In sports and recreational activities, carbon fiber rods are used in a variety of equipment, such as fishing rods, golf clubs, and bicycle frames. They offer a lightweight and durable option for high-performance sports equipment.


Carbon fiber rods are a unique and versatile material that offer a range of benefits over traditional materials such as steel and aluminum. Their strength-to-weight ratio, resistance to corrosion and fatigue, and flexibility make them ideal for a variety of applications in industries such as aerospace, automotive, sports, and recreation.

As technology advances and manufacturing costs continue to decrease, carbon fiber rods are becoming more accessible and widely used. With their unique properties and benefits, carbon fiber rods are likely to continue to play a significant role in a variety of industries for years to come.

Overall, carbon fiber rods are a promising material that offers a wide range of benefits over traditional materials. They are lightweight, strong, and flexible, making them ideal for a variety of applications in different industries. With advancements in technology and manufacturing processes, carbon fiber rods are becoming more accessible and widely used. As more industries discover the advantages of this material, we can expect to see even more innovative uses of carbon fiber rods in the future.

What our company can offer

Our factory provides OEM /ODM service and support and other services. We can also assist you with various designs for new product development and product material switching. ,If you are interested in learning more about Carbon Fiber Rods, please visit our website or contact us for more information.

Below is our mould list , if the size you need is not in the list, please contact us directly !


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