CFRP T300/934 Unidirectional

Verifiedcomposite
· T300/934· T300 UD

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.

aerospace primary structuresaircraft control surfaceshelicopter componentsdefense/military applicationssatellite structureswind turbine blades

Compliance & Regulations

?ITAR?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
Composite Layup1 ply · 0.13 mm total

Fiber Direction

+0°
Drag to rotate · Scroll to zoom · → = 0° reference
FiberToray T300 Carbon
MatrixFiberite 934 Epoxy
ProcessAutoclave prepreg
Cure177°C / 120 min / 0.59 MPa
Vf60%

Ply Schedule

+0°T300 Carbon/934 Epoxy0.125 mm

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 OverviewNormalized to typical max values
PropertyValueUnitConditionsSource
Elongation at Break(εf)
1.400
-—
Poisson's Ratio(ν)
0.2800
-—
Ultimate Tensile Strength(σUTS)
217.6
ksi—
Young's Modulus(E)
19,580.1
ksi—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Glass Transition Temperature(Tg)
373.7
°F—
Maximum Service Temperature(Tmax)
265.7
°F—
Thermal Conductivity(k)
4.045
BTU/(hr·ft·°F)—
Coefficient of Thermal Expansion(α (CTE))
-0.1667
µin/in·°F—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.05708
lb/in³—
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

Quality & Standards

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.