T300/934 is a unidirectional carbon fiber composite combining Toray's widely-used T300 carbon fibers with Fiberite's 934 epoxy matrix, produced via autoclave prepreg processing. This material is a workhorse in aerospace and defense applications where moderate-temperature performance, reliable processability, and cost-effectiveness matter more than cutting-edge performance—it remains a baseline choice for primary structures, control surfaces, and components where damage tolerance and manufacturing repeatability are critical. Engineers typically select T300/934 over newer fiber systems when specifications allow, because the extensive historical data, mature supply chain, and well-understood failure modes reduce design risk and certification burden.
Compliance & Regulations
Fiber Direction
Ply Schedule
Laminate Code
[0]T
Fiber angles relative to the 0° reference direction (red arrow in 3D view). 0° = longitudinal, 90° = transverse, ±45° = shear paths.
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | 1.400 | - | — | ||
Poisson's Ratio(ν) | 0.2800 | - | — | ||
Ultimate Tensile Strength(σUTS) | 1.500 | GPa | — | ||
Young's Modulus(E) | 135.0 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 463 | K | — | ||
Maximum Service Temperature(Tmax) | 403 | K | — | ||
Thermal Conductivity(k) | 7.000 | W/(m·K) | — | ||
Coefficient of Thermal Expansion(α (CTE)) | -3.000e-7 | 1/K | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 1.580 | kg/m³ | — |