PEEK-CF30
PEEK-CF30 is a 30% carbon-fiber-reinforced polyaryletherketone with the highest stiffness-to-weight ratio in the PEEK family: 235 MPa tensile strength, 24 GPa modulus, 1.41 g/cm³ density and service to 260 °C.
Reference datasheet — PEEK-CF30 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the IM condition
PEEK-CF30 grades and fills
PEEK-CF30 is supplied in 5 conditions, soft to hard. IM is the default FabDigit quotes; the values on this page are for it.
Compare all 5 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
3D-printing filament / FFF grade CF-reinforced PEEK | Choose for high-temperature FFF tooling and lightweight brackets; expect anisotropy and Z-axis strength penalty. | 105 | 1.5 | 85 Shore D | |
Solution annealed | Semi-finished stock for machined parts; lower and more isotropic strength than injection-moulded test bars. | 145 | 2.5 | 102 HRM | |
Static-dissipative / conductive CF30 compound | Use for semiconductor wafer handling, fuel-system and electronics parts needing controlled surface resistivity. | 210 | 1.6 | 87 Shore D | |
High-flow / low-viscosity CF30 injection grade | Pick for thin-wall, long-flow or multi-cavity mouldings where 450-viscosity will not fill. | 215 | 1.5 | 87 Shore D | |
IMDefault Standard injection-moulding compound | Default medium-viscosity injection grade for structural, high-stiffness moulded parts. | 235 | 1.7 |
Supply forms, finishes and certifications
Ways PEEK-CF30 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
FC | Bearing / tribological grade, CF + PTFE + graphite | Supply form |
MED | Implantable / medical grade CF-reinforced PEEK | Certification |
What is PEEK-CF30?
PEEK-CF30 is a 30% carbon-fiber-reinforced polyaryletherketone with the highest stiffness-to-weight ratio in the PEEK family: 235 MPa tensile strength, 24 GPa modulus, 1.41 g/cm³ density and service to 260 °C. It is chosen for metal replacement in stiffness-critical parts, for improved wear resistance and for anti-static duty, and is supplied as injection-moulded parts, extruded rod and plate, and AM filament. Elongation is only 1.7%, so the grade is notch-sensitive; the fiber is highly abrasive to tooling and shrinkage is strongly anisotropic. Unfilled PEEK 450G is the choice where toughness or electrical insulation matters. PEEK-CF30 has a density of 1.41 g/cm³ (0.0509 lb/in³), heavier than 81% of polymer grades. Its glass-transition temperature is 143°C (289 °F). PEEK-CF30 has a tensile strength of 235 MPa (34.1 ksi), stronger than 100% of polymer grades. Elongation at break is 1.7% and the elastic modulus is 24 GPa (3.48 Msi).
What is PEEK-CF30 used for?
- aerospace structural components
- high-load bushings
- pump/valve components
- ESD-sensitive equipment parts
Advantages
- Stiff — 24 GPa (3.48 Msi), better than 100% of polymer grades
- Conducts heat well — 0.9 W/m·K (0.52 BTU/hr·ft·°F), better than 100% of polymer grades
- High service temperature — 260°C (500 °F), better than 97% of polymer grades
- Good corrosion resistance — 92/100, better than 91% of polymer grades
- Low, predictable mold shrinkage — 0.3%, better than 90% of polymer grades
Limitations
- High embodied carbon — 18 kg CO₂/kg, worse than 99% of polymer grades
- Limited ductility — 1.7%, worse than 97% of polymer grades
- Limited formability — 10/100, worse than 87% of polymer grades
- Heavy — 1.41 g/cm³ (0.0509 lb/in³), worse than 81% of polymer grades
PEEK-CF30 properties
Typical room-temperature values for PEEK-CF30-IM; bars are the position among polymer grades.
Physical5
PEEK-CF30 has a density of 1.41 g/cm³ (0.0509 lb/in³), heavier than 81% of polymer grades. Its glass-transition temperature is 143°C (289 °F).
Mechanical12
PEEK-CF30 has a tensile strength of 235 MPa (34.1 ksi), stronger than 100% of polymer grades. Elongation at break is 1.7% and the elastic modulus is 24 GPa (3.48 Msi).
Thermal10
PEEK-CF30 is rated for continuous service to 260°C (500 °F). It conducts heat at 0.9 W/m·K (0.52 BTU/hr·ft·°F), better than 100% of polymer grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical3
PEEK-CF30 has an electrical resistivity of 100 Ω·m.
Chemical & Environmental3
Corrosion resistance is excellent (92/100), better than 91% of polymer grades. UV resistance is very good.
Sustainability4
Producing a kilogram of PEEK-CF30 takes about 320 MJ of energy and emits 18 kg of CO₂ — more than 98% of polymer grades. Typical recycled content is 0%.
Manufacturability8
PEEK-CF30's machinability is good (55/100, worse than 64% of polymer grades); weldability fair (35/100); formability not recommended (10/100).
Common Calculations4
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the polymer family
Yield strength against density for every polymer grade FabDigit runs. PEEK-CF30 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with PEEK-CF30
Is PEEK-CF30 easy to machine?
Machines well but is highly abrasive — use PCD or fine-grain carbide, sharp positive rake, high speed/low feed, air or flood cooling to stay below Tg and avoid smearing.
Can PEEK-CF30 be welded?
Hot-plate, IR and ultrasonic welding are possible but fiber-rich weld lines cut joint strength; adhesive bonding needs plasma or abrasive surface activation.
Can PEEK-CF30 be formed, bent or molded?
Injection mould at 370–400 °C melt with 170–200 °C tool for full crystallinity; dry 3 h at 150 °C, expect 0.1 % flow / ~0.6 % transverse shrinkage and strong fiber orientation effects.
PEEK-CF30 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 |
|---|---|---|
| carbon fiber (PAN-based short fiber)chopped, typically 6–8 µm diameter | 28 – 32 | 30 |
| processing aids / pigmentslubricant, nucleant; grade-dependent | 0 – 1 | 0.3 |
| polyetheretherketone (PEEK) resinsemi-crystalline PAEK matrix | ≥ 68 (balance) |
What surface finishes work on PEEK-CF30?
No plating or anodizing; parts are naturally black with a matte fiber-rich skin — bead blast, vapour-free machining or thin PVD/PTFE topcoats are the usual finishing routes.
How much does PEEK-CF30 cost?
PEEK-CF30 is a high-cost polymer ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
PEEK-CF30 — frequently asked
What is PEEK-CF30 used for?
PEEK-CF30 is typically used for aerospace structural components, high-load bushings, pump/valve components and ESD-sensitive equipment parts. In short: stiffest PEEK grade; wear- and static-resistant; highly abrasive to tooling.
What is the tensile strength of PEEK-CF30?
PEEK-CF30 has a typical tensile strength of 235 MPa (34.1 ksi) — stronger than 100% of polymer grades. Strength varies by condition: see the 5 listed tempers.
Is PEEK-CF30 easy to machine?
Reasonably — machinability is rated good (55/100, worse than 64% of polymer grades). Machines well but is highly abrasive — use PCD or fine-grain carbide, sharp positive rake, high speed/low feed, air or flood cooling to stay below Tg and avoid smearing.
Can PEEK-CF30 be welded?
With care — weldability is rated fair (35/100). Hot-plate, IR and ultrasonic welding are possible but fiber-rich weld lines cut joint strength; adhesive bonding needs plasma or abrasive surface activation.
What surface finishes work on PEEK-CF30?
No plating or anodizing; parts are naturally black with a matte fiber-rich skin — bead blast, vapour-free machining or thin PVD/PTFE topcoats are the usual finishing routes.
Can PEEK-CF30 be formed, bent or molded?
Injection mould at 370–400 °C melt with 170–200 °C tool for full crystallinity; dry 3 h at 150 °C, expect 0.1 % flow / ~0.6 % transverse shrinkage and strong fiber orientation effects.
What is the maximum service temperature of PEEK-CF30?
PEEK-CF30 is rated for continuous use to about 260°C (500 °F), and briefly to 310°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does PEEK-CF30 cost?
PEEK-CF30 is a high-cost polymer ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- VICTREX PEEK 450CA30 / 90CA30 / 450FC30 product data — Victrex plc (2023)
- TECAPEEK CF30 black stock shapes datasheet — Ensinger GmbH (2023)
- CAMPUS plastics ISO 10350 dataset for CF-reinforced PEEK — CWFG / CAMPUS (2024)
- ISO 527-2 / ISO 178 / ISO 75 test methods for plastics — ISO (2019)
- Engineering Plastics — Engineered Materials Handbook Vol. 2 (PAEK section) — ASM International (1988)
- PEEK-OPTIMA Reinforced (carbon fiber) implantable polymer data — Invibio Biomaterial Solutions (2022)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.