T800H THERMOPLASTIC
Matrix
GB CCF-800
For weldable, tough, out-of-autoclave AFP structures with high damage tolerance and unlimited shelf life.
Values for the THERMOPLASTIC condition
Other T800H grades and fills
T800H is listed in 5 conditions; see the grade overview at T800H.
Compare all 5 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
THERMOPLASTICThis page T800-class fiber in PEEK/PEKK thermoplastic tape (AFP-grade) | For weldable, tough, out-of-autoclave AFP structures with high damage tolerance and unlimited shelf life. | — | 2,450 | — | — |
UD prepreg laminate, bismaleimide matrix, Vf ≈ 60 % | Pick when service temperature exceeds epoxy capability (engine nacelle, supersonic skins, hot structure). | — | 2,700 | 1.7 | — |
UD prepreg laminate, 180 °C toughened epoxy (e.g. #3900-2), Vf ≈ 60 % | The workhorse aerospace form — 0° laminate values for wing skins, spars and stringers. | — | 2,940 | 1.7 | — |
TOW-12KDefault T800HB-12000 | Standard aerospace/industrial tow for prepreg, filament winding and braiding — best cost per kg of the T800H family. | — | 5,490 | 1.9 | — |
T800HB-6000 | Finer tow for thin plies, woven fabrics and tight-radius braiding where 12K is too coarse. | — | 5,490 | 1.9 | — |
What is T800H THERMOPLASTIC?
T800H THERMOPLASTIC is T800H in the THERMOPLASTIC condition — for weldable, tough, out-of-autoclave AFP structures with high damage tolerance and unlimited shelf life. T800H THERMOPLASTIC has a tensile strength of 2,450 MPa (355 ksi), stronger than 78% of composite grades. Elongation at break is 1.9% and the elastic modulus is 145 GPa (21 Msi). T800H THERMOPLASTIC has a density of 1.6 g/cm³ (0.0578 lb/in³), lighter than 53% of composite grades. TOW-12K is the default condition FabDigit quotes; THERMOPLASTIC is available on request or by drawing note.
Advantages
- Good corrosion resistance — 92/100, better than 94% of composite grades
- Conducts heat well — 35 W/m·K (20.2 BTU/hr·ft·°F), better than 82% of composite grades
Limitations
- High embodied carbon — 34 kg CO₂/kg, worse than 85% of composite grades
- Difficult to machine — 18/100, worse than 80% of composite grades
T800H THERMOPLASTIC properties
Typical room-temperature values for T800H THERMOPLASTIC; 11 are specific to this condition. Other listed values are T800H reference data and may not represent this condition. Bars are the position among composite grades.
Physical1
T800H THERMOPLASTIC has a density of 1.6 g/cm³ (0.0578 lb/in³), lighter than 53% of composite grades.
Mechanical4
T800H THERMOPLASTIC has a tensile strength of 2,450 MPa (355 ksi), stronger than 78% of composite grades. Elongation at break is 1.9% and the elastic modulus is 145 GPa (21 Msi).
Thermal6
T800H THERMOPLASTIC is rated for continuous service to 250°C (482 °F). It conducts heat at 35 W/m·K (20.2 BTU/hr·ft·°F), better than 82% of composite grades. Thermal expansion is -0.56 µm/m·K (-0.311 µin/in·°F).
Electrical1
T800H THERMOPLASTIC has an electrical resistivity of 1.4×10⁻⁵ Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (92/100), better than 94% of composite grades. UV resistance is excellent.
Sustainability4
Producing a kilogram of T800H THERMOPLASTIC takes about 500 MJ of energy and emits 34 kg of CO₂ — more than 84% of composite grades. Typical recycled content is 0%.
Manufacturability1
T800H THERMOPLASTIC's machinability is poor (18/100, worse than 80% of composite grades).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with T800H THERMOPLASTIC
Is T800H easy to machine?
Extremely abrasive and delamination-prone — use PCD or diamond-coated compression routers, high rpm/low feed, backing plates on drill exit, and HEPA extraction for conductive dust.
Can T800H be welded?
Not weldable in epoxy/BMI form; thermoplastic (PEEK/PEKK) tape versions can be resistance-, induction- or ultrasonically welded.
Can T800H be formed, bent or molded?
Laid up as UD or fabric prepreg and autoclave-cured at 177 °C/6–7 bar (epoxy) or 190–230 °C post-cure (BMI); also filament winding, RTM and AFP with slit tape.
What surface finishes work on T800H?
Seal edges and use fiberglass isolation plies plus wet primer/sealant at aluminium interfaces to prevent galvanic corrosion; UV-protective topcoat required for outdoor service.
T800H chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Nresidual nitrogen from PAN precursor | 3 – 6 | 5 |
| Osurface oxygen from electrolytic surface treatment | 0.5 – 2 | 1 |
| epoxy sizing50B/10E/40B sizing add-on, wt% | 0.5 – 1.5 | 1 |
| CPAN-derived carbon content | ≥ 93 (balance) | — |
T800H THERMOPLASTIC — frequently asked
What is T800H THERMOPLASTIC used for?
T800H THERMOPLASTIC is typically used for commercial aircraft wing/fuselage, high-performance drones and premium bicycle frames. In short: intermediate-modulus primary structure fiber; available as thermoplastic tape; higher stiffness than T700S.
What is the tensile strength of T800H THERMOPLASTIC?
T800H THERMOPLASTIC has a typical tensile strength of 2,450 MPa (355 ksi) — stronger than 78% of composite grades. Strength varies by condition: see the 5 listed tempers.
Is T800H THERMOPLASTIC easy to machine?
Not especially — machinability is rated poor (18/100, worse than 80% of composite grades). Extremely abrasive and delamination-prone — use PCD or diamond-coated compression routers, high rpm/low feed, backing plates on drill exit, and HEPA extraction for conductive dust.
Can T800H THERMOPLASTIC be welded?
Not weldable in epoxy/BMI form; thermoplastic (PEEK/PEKK) tape versions can be resistance-, induction- or ultrasonically welded.
What surface finishes work on T800H THERMOPLASTIC?
Seal edges and use fiberglass isolation plies plus wet primer/sealant at aluminium interfaces to prevent galvanic corrosion; UV-protective topcoat required for outdoor service.
Can T800H THERMOPLASTIC be formed, bent or molded?
Laid up as UD or fabric prepreg and autoclave-cured at 177 °C/6–7 bar (epoxy) or 190–230 °C post-cure (BMI); also filament winding, RTM and AFP with slit tape.
What is the maximum service temperature of T800H THERMOPLASTIC?
T800H THERMOPLASTIC is rated for continuous use to about 250°C (482 °F), and briefly to 500°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- TORAYCA T800H Technical Data Sheet (fiber and composite properties) — Toray Industries (2023)
- ASM Handbook Vol. 21 — Composites — ASM International (2001)
- CMH-17 Composite Materials Handbook, Vol. 2 — Polymer Matrix Composites Material Properties — SAE International (2012)
- GB/T 3362 Test methods for tensile properties of carbon fiber multifilament — SAC (2017)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.