There are three main types of carbon fiber available on the market: standard modulus, intermediate modulus, and high modulus. Standard modulus is the most common type, with a tensile strength of around 33 million psi. Intermediate modulus has a slightly higher tensile strength (40-50 million psi) and is often used in aerospace applications. High modulus carbon fiber has the highest tensile strength (70+ million psi) and is used in high-performance sports equipment and advanced aerospace components.