Form: This specification covers one type of thermoplastic@ polysulfone resin-impregnated carbon fibers in the form of tape or sheet. Application: Primarily for use in structural composites requiring high strength up to 120o C (250o F). Classification: C 170@000 psi (1170 MPa) tensile strength@ 16@000@000 psi (110 GPa) tensile modulus carbon fiber impregnated with polysulfone resin for service up to 120o C (250o F).