What do T700 and T800 carbon fiber mean?

[McAndrew]

T-series carbon fibers use the last three or four digits to indicate approximate tensile strength, with units in kgf/mm2 or ksi. Here are the specific details about T700 and T800: T700: T700 is a grade of carbon fiber. The tensile strength of T700 carbon fiber is 4900MPa, with a specific strength of 3060MPa, which is significantly higher than the commonly used T300 but lower than T800. Additionally, the carbon mass fraction in T700-grade carbon fiber is 95.58%, making it a relatively high-performance material. T800: T800 is another grade of carbon fiber, typically measured by tensile strength. The tensile strength of T800 reaches 5.49GPa. T800 carbon fiber is currently the highest-strength grade of carbon fiber that can be industrially mass-produced abroad, playing an irreplaceable role in fields such as aerospace.

[AdrielLee]

I often come across various knowledge about carbon fiber materials. Carbon fiber T700 and T800 represent different strength grades. The larger the number after 'T,' the higher the tensile strength. T700 has a tensile strength of about 4,900 MPa, offering moderate strength, making it suitable for secondary components in cars such as interior trim panels. It helps reduce the vehicle's weight and fuel consumption without sacrificing too much stability. T800, on the other hand, upgrades to approximately 5,880 MPa, providing higher strength and lighter weight, making it more suitable for critical parts like doors or suspension components, enhancing the vehicle's handling response and performance limits. When choosing, cost considerations are essential. T700 is relatively economical and commonly used in regular family cars to reduce weight, while T800 is more often seen in luxury sports cars or race cars, with a significantly higher price. Additionally, in practical applications, special adhesives must be used to prevent delamination. Overall, understanding these grades can help car owners make wiser upgrade decisions and avoid unnecessary expenses.

[StGabriel]

From my daily driving experience, I've test-driven some models equipped with carbon fiber. The T700 and T800 grades of carbon fiber essentially indicate differences in material strength—the higher the number, the stronger and lighter it is. For personal vehicles, T700 is commonly used in components like hoods, reducing weight and making the car feel more agile while slightly improving fuel efficiency. T800, with its higher strength, is typically found in high-end aftermarket parts such as spoilers or crash beams, offering sharper steering response and quicker acceleration. However, its price doubles, making it less cost-effective for all vehicles. The choice ultimately depends on the car type: T700 is a practical option for city-driving SUVs, while T800 suits performance cars pushing limits. I've seen friends blindly chase higher specs only to waste money—prioritizing proper installation and reliable quality is far more important.

[McArthur]

After spending a long time modifying cars, I often discuss carbon fiber material selection. Designations like T700 and T800 refer to material grades, with strength classified by numerical values - T800 is tougher and lighter than T700. For lightweight applications, T800 shows obvious weight reduction benefits ideal for racing speed optimization, while T700 provides sufficient safety and durability for regular road cars. There's no need to obsess over numerical differences - focusing on practical applications is more important.

[LaKennedy]

As a fashion-conscious car owner, I pay great attention to the combination of carbon fiber's appearance and performance. T700 and T800 represent different strength grades—the higher the number, the better the performance, but the price also increases. When selecting parts, T700 is perfect for decorative trims or side skirts, offering a cool look with simple maintenance and durability. T800 is ideal for critical structural components like chassis parts, providing reliable strength for high-speed driving, but beware of counterfeit products. Some low-quality items on the market lure buyers with low prices but lack sufficient strength. To distinguish genuine from fake, check for consistent surface texture and certification marks to protect your investment.