What does T700 carbon fiber mean?
2 Answers
T700 refers to the grade of carbon fiber. It is typically measured by tensile strength indicators. T700 must achieve a tensile strength of 4.9Gpa. Currently, only 12k carbon fiber can meet the T700 standard. Additional information: Carbon fiber is a new type of fiber material with a carbon content of over 95%, known for its high strength and high modulus. The 'T' number in carbon fiber denotes the grade of the carbon material. Within the industry, it specifically refers to a certain type of carbon material produced by Toray Industries of Japan, while outside the industry, it generally refers to ultra-high precision carbon materials. The 'T' number indicates the tensile tonnage that a unit quantity of this type of carbon fiber with a cross-sectional area of 1 square centimeter can withstand. Therefore, generally speaking, a higher 'T' number represents a higher grade and better quality of carbon fiber.
Last time I changed my bike, I specifically researched T700 carbon fiber. This is a model designated by Japan's Toray Company, just like how mobile phone chips are divided into Snapdragon 8 and Dimensity 9000. The higher the number after 'T,' the better the performance. T700 has a tensile strength of up to 4,900 MPa, being 70% lighter than ordinary steel but five times harder. The most practical aspect is its popularity in the car modification scene. I've seen a friend's engine hood modified with T700 carbon fiber—less than 2mm thick yet capable of withstanding stone impacts. Fishing rod manufacturers also love using it, as this type of carbon weave is extremely dense, almost eliminating rebound vibrations when casting. However, when buying parts, make sure to look for the 12K twill surface pattern, as counterfeit products often have messy textures.
