3D Printing InfoWhere it is used
Stiff aerospace and oil-and-gas parts where PEEK alone is not rigid enough
Sources
- CarbonX Carbon Fiber PEEK Technical Data Sheet v3 · 2026-08 · tds
High-temperature polymers · Material guide
Fibre-reinforced PEEK
PEEK with short carbon or glass fibre. Carbon roughly doubles tensile modulus to 8100 MPa and cuts thermal expansion to about a third of unfilled PEEK, at the cost of elongation falling…
Open in interactive comparisonUnderstand the material
At a glance
Before you print
- Setup difficulty
- Expert / industrial hardware only
- Nozzle wear
- Highly abrasive — standard CF composite
Read the full material overview
PEEK with short carbon or glass fibre. Carbon roughly doubles tensile modulus to 8100 MPa and cuts thermal expansion to about a third of unfilled PEEK, at the cost of elongation falling from 28 % to 3 %. Glass grades trade some stiffness for electrical insulation.
Applications
Fiber-filled PEEK is chosen when unfilled PEEK is too compliant or expands too much for the mechanical task. Ensinger describes carbon-filled TECAPEEK CF30 stock for demanding industrial components, including sliding applications: the reinforcement raises stiffness and creep strength, and improved heat conduction can help remove frictional heat from a contact. Carbon and glass fillings serve different needs; glass-filled grades should not inherit carbon-filled electrical or thermal behavior.
Short fibers make printed PEEK stiffer but less able to accommodate strain, favoring rigid components over resilient clips or hinges. Fiber orientation also makes expansion and stiffness direction-dependent. Filler content, counterface and contact heat matter in sliding service. Long-term load and creep limits need evidence for the actual printed grade and orientation; the properties of extruded CF30 stock do not describe every CF10 or CF15 print.
Sliding components in carbon-filled PEEK ↗
Stock-shape machining; manufacturer offers machined parts · TECAPEEK CF30 black, 30% carbon-filled stock; not the catalog CF10 printed grade · Manufacturer-listed applications
Ensinger identifies sliding applications for its CF30 stock and relates them to stiffness, creep strength and higher thermal conductivity, which can help dissipate contact heat.
Sources
- CarbonX Carbon Fiber PEEK Technical Data Sheet v3 · 2026-08 · tds
- 3DXTech product catalogue · 2026-08 · vendor
- 3D4Makers product catalogue · 2026-08 · vendor
- TECAPEEK CF30 black (PEEK-CF30) — stock shape properties · 2026-08 · tds
- ThermaX PEEK Technical Data Sheet v3 · 2026-08 · tds
- TECAPEEK natural (PEEK) — stock shape properties · 2026-08 · tds
Find printable models
Check the model’s material and process notes before choosing a filament.
Plan your printer setup
All print settings ↓Printing quick reference
Representative catalog values. Check the exact grade and its linked conditions before using a setting.
Nozzle temperature (°C)
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Full value & sources
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—Bed temperature (°C)
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Full value & sources
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—Enclosure
Actively heated chamber required
Full value & sources
Actively heated chamber required
- Prusament PEI 1010 Technical Datasheet v1.0 · 2024-09 · tds
- Prusament PEI 1010 — material page · 2026-08 · doc
Drying
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Full value & sources
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—Go deeper when you need to
40 documented fieldsProperties & source data
Open a topic to explore the complete data. Each value keeps its original conditions, units and dated sources.
Material & market7 fields
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Base polymer / chemistry | Short-fibre reinforced PEEK. 3DXTech's CarbonX grade is nominally 10 wt% carbon and its FibreX grade 20 wt% glass; LEHVOSS Luvocom 3F PEEK CF 9676 is 15 wt% carbon; Ensinger's machining stock runs to 30 wt% carbon | 4 sources
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| Density (g/cm³) | 1.39 (ISO 1183) | 1 source
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| Typical price (USD/kg) | 1 kg-equivalent spools span 448–972; the middle of the market is about 598 | 3 sources
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| Price range across brands (USD/kg) | 448-972 across formats and filler types; IEMAI 3D CF-PEEK and GF-PEEK 448 at 1 kg, 3DXTech CarbonX PEEK+CF10 598 at 2 kg and FibreX PEEK+GF20 695 at 1 kg, Luvocom 3F PEEK CF 9676 648 at 2 kg | 4 sources
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| Market availability (1–5) | Niche, a handful of specialist brands | 2 sources
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| Spool sizes & diameters | 1.75 and 2.85 mm; 200 g to 2 kg spools | 2 sources
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| Typical applications | Stiff aerospace and oil-and-gas parts where PEEK alone is not rigid enough | 1 source
|
Print settings3 fields
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Enclosure / chamber requirement (1–5) | Actively heated chamber required | 2 sources
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| Warping tendency (1–5) | Moderate — needs adhesion aid or draught shield; the fibre cuts PEEK's crystallisation shrinkage | 1 source
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| Overall printing difficulty (1–5) | Expert / industrial hardware only | 2 sources
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Nozzle wear & reliability3 fields
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Nozzle hardness required (1–4) | Hardened steel required | 1 source
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| Abrasiveness (1–5) | Highly abrasive — standard CF composite | 1 source
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| Nozzle clog risk (1–5) | High — jams from moisture, heat creep or particles; 3DXTech adds a hardened 0.4 mm minimum nozzle and 0.25 mm layers to the mandatory 120 °C pre-dry | 2 sources
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Moisture & drying2 fields
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Equilibrium moisture content at ~50 % RH (%) | 0.06 in 24 h on extruded CF30 stock (ASTM D570) | 1 source
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| Effect of moisture on strength | No dry-versus-conditioned figures are published; 3DXTech mandates a 120 °C, 4 h pre-dry before every print because trapped water flashes to steam at these nozzle temperatures | 1 source
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Strength & mechanical properties11 fields
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Tensile strength (XY) (MPa) | 105 at break (printed XY, ISO 527, CF10); 121 at yield on extruded CF30 stock (ASTM D638) | 2 sources
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| Young's modulus (MPa) | 8100 (printed XY, ISO 527, CF10) — more than double unfilled PEEK; 6343 on extruded CF30 stock (ASTM D638) | 2 sources
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| Elongation at break (%) | 3 at break (printed XY, ISO 527), against 28 for unfilled PEEK | 2 sources
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| Flexural strength (MPa) | 136 (printed XY, ISO 178, CF10); 193 on extruded CF30 stock (ASTM D790) | 2 sources
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| Flexural modulus (MPa) | 8300 (printed XY, ISO 178, CF10); 7171 on extruded CF30 stock (ASTM D790) | 2 sources
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| Other impact data | Izod notched 61.9 J/m on extruded CF30 stock, converted from 1.16 ft-lb/in (ASTM D256) | 1 source
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| Brittleness (1–5) | Brittle — snaps with little warning; elongation falls from 28 % to 3 % | 2 sources
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| Hardness (scale-specific) (Shore A / Shore D / Rockwell) | Rockwell M107 on extruded PEEK-CF30 stock (ASTM D785), against M100 unfilled | 2 sources
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| Creep resistance / sustained load (1–5) | Excellent — holds load for years. Ensinger rates carbon-fibre PEEK stock as very highly creep resistant and specifies 260 °C continuous service | 1 source
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| Fatigue / repeated-flex resistance (1–5) | Good. Victrex rates PEEK for long-term fatigue as well as creep; the fibre cuts elongation at break from 28 % to 3 %, which limits repeated large-strain flexing | 3 sources
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| Elasticity / flexibility (1–5) | Rigid | 1 source
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Heat & temperature7 fields
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| HDT at 0.45 MPa (°C) | 265 (printed XY, ISO 75 at 0.45 MPa, CarbonX PEEK+CF10) against 140 for unfilled PEEK | 2 sources
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| HDT at 1.8 MPa (°C) | 316 on extruded CF30 stock, converted from 600 °F at 264 psi (ASTM D648) | 1 source
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| Glass transition (Tg) (°C) | 143 (DSC, CarbonX PEEK+CF10) — the fibre does not move the glass transition | 1 source
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| Melting point / Vicat (°C) | 334 melting on extruded CF30 stock, converted from 633 °F | 1 source
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| Continuous service temperature (°C) | 260 long-term on extruded CF30 stock, converted from 500 °F; 300 short term | 1 source
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| Thermal expansion (CTE) (µm/m·K) | 14.4 (extruded PEEK-CF30 stock, ASTM D696; source states 0.80e-5 in/in/°F) — about a third of unfilled PEEK | 2 sources
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| Flammability / UL 94 | UL 94 V-0 on the base resin; Ensinger lists extruded PEEK-CF30 stock as inherently flame resistant | 2 sources
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Weather & chemical resistance1 field
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Electrical & ESD properties | Surface resistance above 10⁹ ohm/sq — not static-dissipative (ASTM D257) | 1 source
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Health & safety3 fields
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Fume toxicity (1–5) | Moderate — measurable VOCs and UFPs, ventilation advised. None of these polymers was in the chamber study, and all are processed far above the temperatures it covered | |
| Ventilation / filtration requirement (1–5) | Ventilated room or enclosure recommended | |
| Dust & fibre handling hazard | Carbon fibre is bound in the matrix; sanding dust should not be inhaled | 1 source
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Solvents & solubility3 fields
| Property and unit | Published value and conditions | Sources and dates |
|---|---|---|
| Soluble in | 95–98 wt% sulphuric acid dissolves the matrix at 40–70 °C and leaves the fibre. Nothing else touches PEEK. | |
| Softened or crazed by | Concentrated nitric, hydrofluoric, hydrobromic and hydriodic acids attack it; DCM, DMSO and THF swell thin-walled sections. | 2 sources |
| Solvent welding & smoothing agent | None — no solvent softens PEEK, so parts are joined thermally or mechanically, never chemically. | 2 sources |
How to read these values
Values describe representative grades, not every spool. Manufacturer datasheets and independent tests retain their source labels and dates. Printed orientation, test method, conditioning and formulation can change results. Unknown values are —. A listed use is not a certification. Shore A, Shore D and Rockwell hardness are separate scales.
Find a specific filament
5 listingsProduct listings and datasheets
Historical USD/kg snapshots. Read each listing’s sale/from qualifiers, spool mass, source date, shipping and tax notes. Product figures are separate from the material summary.
Browse 5 products from 3 brands
IEMAI 3DCF-PEEK448.00 USD/kg
$448.00 / 1 kg spool, store.iemai3d.com, Aug 2026
Data sheet quotes DIN EN ISO methods and does not state whether the specimens were printed or machined from stock.
Open product listing ↗- IEMAI 3D CF-PEEK 3D Printing Filament — store page · 2026-08 · vendor
- IEMAI 3D CF-PEEK Technical Data Sheet · 2025-05 · tds
| Tensile strength (XY) (MPa) | 112 (DIN EN ISO 527-2 at 50 mm/min; specimen type not stated) |
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|---|---|---|
| Young's modulus (MPa) | 6000 (DIN EN ISO 527-2 at 1 mm/min; specimen type not stated) |
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| Elongation at break (%) | 10 at break (DIN EN ISO 527-2; specimen type not stated) |
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| Charpy impact, notched (kJ/m²) | 9 Charpy unnotched (DIN EN ISO 179-1eU) |
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| Glass transition (Tg) (°C) | 147 (DIN EN ISO 11357) |
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| Melting point / Vicat (°C) | 341 melting temperature (DIN EN ISO 11357) |
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| Continuous service temperature (°C) | 260 long term; 300 short term |
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| Flammability / UL 94 | UL 94 V-0 (DIN IEC 60695-11-10) |
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IEMAI 3DGF-PEEK448.00 USD/kg
$448.00 / 1 kg spool, store.iemai3d.com, Aug 2026
Glass-fibre rather than carbon: stiffer in bending than the CF grade but only 2.5 % elongation.
Open product listing ↗- IEMAI 3D GF-PEEK 3D Printing Filament — store page · 2026-08 · vendor
- IEMAI 3D GF-PEEK Technical Data Sheet · 2025-05 · tds
| Tensile strength (XY) (MPa) | 105 (DIN EN ISO 527-2 at 50 mm/min; specimen type not stated) |
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|---|---|---|
| Young's modulus (MPa) | 7250 (DIN EN ISO 527-2; specimen type not stated) |
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| Elongation at break (%) | 2.5 at break (DIN EN ISO 527-2) |
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| Flexural strength (MPa) | 130 (DIN EN ISO 178) |
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| Flexural modulus (MPa) | 7625 (DIN EN ISO 178) |
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| Charpy impact, notched (kJ/m²) | 10 Charpy unnotched (DIN EN ISO 179-1eU) |
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| Glass transition (Tg) (°C) | 143 (DIN EN ISO 11357) |
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| Melting point / Vicat (°C) | 341 melting temperature (DIN EN ISO 11357) |
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| Continuous service temperature (°C) | 260 long term; 300 short term |
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| Flammability / UL 94 | UL 94 V-0 (DIN IEC 60695-11-10) |
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3DXTechCarbonX PEEK+CF10597.50 USD/kg
$1195.00 / 2 kg spool = $597.50/kg; the 250 g spool is $195.00 ($780/kg), 3dxtech.com product catalogue, Aug 2026
Handle carbonx-peek-cf10-1. Nominally 10 wt% carbon fibre.
Open product listing ↗- CARBONX PEEK+CF10 — product page (print recommendations) · 2026-08 · doc
- CarbonX Carbon Fiber PEEK Technical Data Sheet v3 · 2026-08 · tds
| Density (g/cm³) | 1.39 (ISO 1183) |
|
|---|---|---|
| Nozzle temperature (°C) | 400 (TDS printed-specimen condition) |
|
| Bed temperature (°C) | 140 (TDS printed-specimen condition) |
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| Tensile strength (XY) (MPa) | 105 at break (printed XY, ISO 527) |
|
| Young's modulus (MPa) | 8100 (printed XY, ISO 527) |
|
| Elongation at break (%) | 3 at break (printed XY, ISO 527) |
|
| Flexural strength (MPa) | 136 (printed XY, ISO 178) |
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| Flexural modulus (MPa) | 8300 (printed XY, ISO 178) |
|
| HDT at 0.45 MPa (°C) | 265 (ISO 75, 0.45 MPa) |
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| Glass transition (Tg) (°C) | 143 (DSC) |
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| Electrical & ESD properties | Surface resistance >10^9 Ω/sq (ASTM D257) |
|
LEHVOSS (Luvocom)Luvocom 3F PEEK CF 9676 BK647.97 USD/kg
EUR 1199.95 / 2 kg spool = $647.97/kg at 1.08 USD/EUR, 3d4makers.com catalogue, Aug 2026
15 wt% carbon fibre.
Open product listing ↗- LEHVOSS (Luvocom) Luvocom 3F PEEK CF 9676 BK product page · 2026-08 · vendor
| Density (g/cm³) | 1.36 (ISO 1183) |
|
|---|---|---|
| Nozzle temperature (°C) | 400–450 |
|
| Bed temperature (°C) | 110 and above |
|
| Drying temperature & time | 120 °C for 4–8 h |
|
| Tensile strength (XY) (MPa) | 126 at 23 °C / 50 % RH (ISO 527) |
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| Young's modulus (MPa) | 7800 at 23 °C / 50 % RH (ISO 527) |
|
| Elongation at break (%) | 3.9 at 23 °C / 50 % RH (ISO 527) |
|
| Charpy impact, notched (kJ/m²) | 7 notched (Charpy) |
|
| Other impact data | Charpy unnotched 66 kJ/m² (eU) |
|
| HDT at 1.8 MPa (°C) | 280 (ISO 75, HDT A / 1.8 MPa) |
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| Continuous service temperature (°C) | 250 continuous (UL 746B); 280 short term |
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| Electrical & ESD properties | Surface resistance <10^9 Ω (DIN IEC 60093) |
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3DXTechFibreX PEEK+GF20695.00 USD/kg
$695.00 / 1 kg spool = $695.00/kg, 3dxtech.com product catalogue, Aug 2026
20 % glass fibre in PEEK; 3DXTech publishes the sheet under the ThermaX PEEK GF20 name. Specimens printed XY flat at 400 °C nozzle / 160 °C bed, 0.25 mm layer, 100 % infill.
Open product listing ↗- 3DXTech FibreX PEEK+GF20 product page · 2026-08 · vendor
- ThermaX PEEK GF20 3D Printing Filament — Technical Data Sheet Rev 1.0 · 2026-08 · tds
| Density (g/cm³) | 1.44 (ISO 1183) | |
|---|---|---|
| Spool sizes & diameters | 1.75 mm; 250 g, 500 g and 1 kg |
|
| Nozzle temperature (°C) | 375–410 |
|
| Bed temperature (°C) | 130–145 |
|
| Recommended chamber temperature (°C) | 70–140 |
|
| Drying temperature & time | 130 °C for 4 h |
|
| Tensile strength (XY) (MPa) | 105 at break (printed XY, ISO 527) | |
| Young's modulus (MPa) | 7250 (printed XY, ISO 527) | |
| Elongation at break (%) | 2.5 at break (printed XY, ISO 527) | |
| Flexural strength (MPa) | 130 (printed XY, ISO 178) | |
| Flexural modulus (MPa) | 7625 (printed XY, ISO 178) | |
| HDT at 0.45 MPa (°C) | 300 (ISO 75, 0.45 MPa) | |
| Glass transition (Tg) (°C) | 143 (DSC) |
|
| Melting point / Vicat (°C) | 343 melting point (product page) |
|
| Continuous service temperature (°C) | 260 continuous use (product page) |
|
| Electrical & ESD properties | Surface resistance >10^13 Ω/sq (ASTM D257) |