AS4/3501-6 Unidirectional Tape (MIL-HDBK-17)
Verifiedcomposite· AS4/3501-6 UD· 3501-6 Tape
AS4/3501-6 is a unidirectional carbon fiber reinforced epoxy prepreg system combining Hexcel's AS4 carbon fibers (12K tow) with 3501-6 epoxy matrix, designed for autoclave processing at 175°C. This material is a industry-standard choice for aerospace primary structures, defense applications, and high-performance composite parts where fiber alignment in a single direction is critical for load-bearing efficiency. Engineers select it over multi-directional laminates when maximum stiffness and strength along the primary load axis outweigh omnidirectional property needs, and its well-documented MIL-HDBK-17 qualification makes it a preferred baseline for structural certification and damage-tolerance analysis.
aircraft fuselage and wing skinsspace launch vehicle structuresmilitary aircraft componentshigh-performance sporting equipmentwind turbine bladesmissile and drone structures
Compliance & Regulations
?ITAR?EAR?Conflict Free?FDA?RoHS?REACH?TSCA?Prop 65
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | — | ksi | T | — | |
Poisson's Ratio(ν) | — | - | notes | — | |
Shear Modulus(G) | — | ksi | notes | — | |
Ultimate Tensile Strength(σUTS) | — | ksi | T | — | |
Young's Modulus(E) | — | ksi | L | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | — | °F | notes | — | |
Thermal Conductivity(k) | — | BTU/(hr·ft·°F) | T | — | |
Coefficient of Thermal Expansion(α (CTE)) | — | µin/in·°F | T | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | lb/in³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
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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.