PEEK CF30 (30% Carbon Fiber): Maximum-Strength High-Temperature Thermoplastic Properties
Published: 2026-06-04
PEEK CF30 (30% carbon fiber reinforced) is the highest-strength injection-moldable PEEK grade, offering 220 MPa tensile strength — more than double unfilled PEEK. The carbon fiber reinforcement provides exceptional stiffness (20 GPa flexural...
PEEK CF30 (30% carbon fiber reinforced) is the highest-strength injection-moldable PEEK grade, offering 220 MPa tensile strength — more than double unfilled PEEK. The carbon fiber reinforcement provides exceptional stiffness (20 GPa flexural modulus), minimal thermal expansion, and the highest HDT (315°C) of any PEEK grade. Specified for aerospace structural components, high-load bearings, semiconductor test sockets, and oil & gas downhole tools where maximum mechanical performance at temperature is required.
Technical Properties
| Density | 1.44 g/cm³ |
|---|---|
| Tensile Strength | 220 MPa |
| Melting Point | 343 °C |
| Shrinkage Rate | 0.1-0.3% |
| Flexural Modulus | 20 GPa |
| Hdt | 315 °C at 1.82 MPa |
| Continuous Service Temp | 260 °C |
Engineering Tool: Shrinkage & Cost Estimator
Calculate part weight, mold cavity dimensions accounting for shrinkage, and material cost — all locally in your browser.
Equivalents & Cross-References
| Equivalent / Alternate | Action |
|---|---|
| Victrex PEEK 450CA30 | |
| Tecapeek CF30 | |
| KetaSpire KT-820 CF30 |
Frequently Asked Questions
What is the main advantage of PEEK CF30 over unfilled PEEK?
PEEK CF30 offers 2.2x tensile strength (220 vs 100 MPa), 5x flexural modulus (20 vs 4.1 GPa), and 2x HDT (315°C vs 160°C) versus unfilled PEEK. The tradeoff: higher cost (~30-50% premium), reduced ductility (elongation ~1.5% vs 20%), and anisotropic properties due to fiber orientation during molding.
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References & Industry Standards
- ASTM International. Standard Specifications for Engineering Plastics & Thermoplastics. astm.org
- UL Prospector. Plastics & Elastomers Material Database. ulprospector.com
- MatWeb. Material Property Data for Engineering Thermoplastics. matweb.com
- ISO 1043. Plastics — Symbols and Abbreviated Terms. iso.org