As industries worldwide continue to advance toward higher efficiency and greater reliability, demand for lightweight yet ultra-strong materials is rising sharply. Among the high-performance polymer composites, Carbon Fiber Reinforced PEEK Sheets (CF-PEEK sheets) have emerged as one of the most sought-after materials due to their exceptional mechanical properties, chemical resistance, and stability under extreme conditions. This article provides an overview of CF-PEEK sheets, covering their characteristics, key parameters, applications, market outlook, and the advantages offered by YILONG’s carbon fiber PEEK products.

Introduction to Carbon Fiber Reinforced PEEK Sheets
Carbon Fiber Reinforced PEEK is a composite material made by combining polyether ether ketone (PEEK) resin with high-strength carbon fibers. PEEK is known as one of the highest-performing engineering thermoplastics, and when reinforced with carbon fiber—typically 30% to 40%—its mechanical strength, dimensional stability, and thermal performance are significantly enhanced. CF-PEEK sheets are widely used in industries that require durability, precision, and long-term performance under extreme conditions.
Key Features and Performance Characteristics
CF-PEEK sheets offer a range of advantages that set them apart from conventional engineering plastics and even some metal materials:
• High strength-to-weight ratio, significantly stronger and lighter than aluminum
• Excellent heat resistance, continuous working temperature up to 250°C
• Outstanding chemical resistance to oils, fuels, solvents, and corrosive environments
• Low flammability and minimal smoke/toxic gas emission
• Exceptional wear resistance and low friction coefficient
• Superior dimensional stability, minimal thermal expansion
• Excellent fatigue resistance, suitable for long-term repetitive stress
• Good electrical insulation and stable performance in harsh electrical environments
These characteristics make carbon fiber PEEK composites a preferred solution for demanding engineering projects.
Typical Technical Parameters
While specifications may vary by formulation and application requirements, the following parameters represent common CF-PEEK sheet performance indicators:
• Carbon fiber content: 30%~40%
• Tensile strength: 150~220 MPa
• Flexural strength: 220~300 MPa
• Tensile modulus: 18~22 GPa
• Glass transition tempreture: 143℃
• Density: 1.32~1.55 g/cm³
• Temperature resistance:-60 ~340℃
• Continuous operating temperature: 260~340℃
• Surface resistivity: customizable based on electrical requirements
These technical advantages allow CF-PEEK sheets to replace metal components while offering better corrosion resistance and reduced weight.
Applications Across High-Tech Industries
Carbon Fiber Reinforced PEEK Sheets are recognized as a premium material across multiple high-tech sectors:
• Aerospace and aviation: structural components, brackets, insulation panels
• Automotive and EV: lightweight structural parts, thermal shields, battery module supports
• Electronics and semiconductors: precision fixtures, heat-resistant insulating components
• Medical devices: surgical tools, sterilization-resistant parts
• Oil & gas and energy: corrosion-resistant seals, high-pressure insulating components
• Industrial machinery: wear pads, precision gears, sliding components
Their combination of stability, machinability, and long service life enables engineers to design components that maintain performance under extreme operational demands.
Market Outlook and Future Development
Driven by global trends such as lightweighting, electrification, and high-temperature engineering, the market for Carbon Fiber Reinforced PEEK materials is expected to grow significantly over the coming decade. Industries are actively replacing metal components with advanced polymer composites to reduce weight, improve corrosion resistance, and extend equipment longevity. As manufacturing technology improves and demand increases across aerospace, EV, semiconductor, and medical sectors, CF-PEEK sheets will continue to gain market share.
Advantages of YILONG Carbon Fiber Reinforced PEEK Sheets
YILONG provides high-quality CF-PEEK sheets designed for stable performance and consistent machining characteristics. Our advantages include:
• Use of premium-grade PEEK resin and high-strength carbon fibers
• Excellent uniformity, smooth surface, and reduced internal stress
• High precision in thickness tolerance and dimensional stability
• Strong mechanical properties suitable for CNC machining and complex processing
• Reliable heat resistance and chemical resistance for extreme environments
• Custom sizes, machining services, and OEM solutions available
• Fast delivery and stable export supply to over 30 countries
YILONG is committed to providing durable, high-performance CF-PEEK materials that support customers’ technical requirements and long-term project development.
Contact YILONG
Email: yilong@yilonginsulation.com
WhatsApp: +86-158-6686-9385
Website: www.yilonginsulation.com