T300/5208 is a carbon fiber–epoxy prepreg composite consisting of Toray T300 carbon fibers in a Narmco 5208 epoxy matrix, cured via autoclave at 177°C. This unidirectional tape is a legacy aerospace material specified in MIL-HDBK-17, widely used in primary and secondary aircraft structures where a balance of stiffness, strength, and proven damage tolerance is required. Engineers select it for cost-effective, high-performance applications where established processing procedures, extensive property data, and certification support are critical—particularly in military aircraft, helicopter components, and commercial aerospace where damage tolerance and inspectability are design drivers.
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 | |
|---|---|---|---|---|---|
Compressive Strength(σc) | 180 | ksi | L | ||
Poisson's Ratio(ν) | 0.3000 | - | notes | ||
Shear Modulus(G) | 942.7 | ksi | notes | ||
Ultimate Tensile Strength(σUTS) | 6.237 | ksi | T | ||
Young's Modulus(E) | 20,015.2 | ksi | L |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.05600 | lb/in³ | — |