Lightweight, High-Stiffness 100% 3K Carbon Fiber Composite Plate - Easy

Product Specification

Lightweight, High-Stiffness 100% 3K Carbon Fiber Composite Plate - Easy Machinability

Made from high-strength PAN-based carbon fibers (T300/T700/T800 grade, 3,000 filaments per tow), our 3K carbon fiber sheet is a high-performance laminate impregnated with epoxy resin or high-temperature thermoplastics (such as PEEK or PPS). The material is hot-pressed and cured under 0.3–5 MPa at 120–180°C. The surface retains the iconic 3K twill or plain weave, offering both mechanical strength and aesthetic appeal. Internally, it features 0°/90°/±45° quasi-isotropic lay-up for balanced in-plane strength and stiffness.

Crafted from high-strength 3K carbon fiber fabric and epoxy resin, our 3K carbon fiber sheet delivers exceptional stiffness, low weight, and sleek woven aesthetics.

With ±45° twill weave and precision-molded surfaces, it offers: ① high tensile strength, ② superior thermal stability, and ③ easy machinability.

Ideal for drones, racing components, robotics, and marine panels—where strength-to-weight ratio matters most. Available in matte or gloss finish.

Request custom thickness or cut-to-size options today. Trusted by engineers worldwide. Fast global delivery.

Key Advantages

• High Strength & Lightweight: Density of 1.55 g/cm³; tensile strength ranges from 3400 to 5200 MPa; specific strength is 5–7 times that of 7075-T6 aluminum.
• Dimensional Stability: Coefficient of thermal expansion <1.5×10⁻⁶ /°C; rigidity maintained under 200°C.
• Premium Surface Quality: 3K plain/twill weave + high-gloss UV coating; Grade-A mirror finish with no pinholes; suitable for exposed parts.
• Durability: Salt spray resistance up to 1000 hours; resistant to acid and alkali (pH 3–11).
• Machinability: CNC milling, drilling, tapping, and waterjet cutting without delamination or chipping.

Surface Finish Options

• Weave Types: 3K Plain Gloss, 3K Plain Matte, 3K Twill Gloss, 3K Twill Matte.
• Colors: Black (default), Silver, Red, Gold, Blue.
• Custom Processing: Laser-engraved logos, CNC V-grooves, perforation, edge painting, silkscreen scales.

Carbon Fiber Sheets — Product Overview

Lightweight, high-stiffness composite sheets made from T700+ carbon fibers. Ideal for UAV skins, automotive panels, industrial panels, tooling faces and structural laminates — offering excellent strength-to-weight ratio and dimensional stability.

Factory & Processes

LIJIN — integrated production including hand/automated layup, vacuum bagging, compression molding and autoclave/hot-press curing. Finishes available: matte, gloss, 3K, 12K, UD; thickness cut to customer spec.

Key Specs

Typical density ≈ 1.6 g/cm³. Available thickness range ~0.2–6 mm (custom available). Layup options: UD, cross-ply, quasi-isotropic and hybrid weaves to match stiffness and impact requirements.

Cost Drivers & Quality

Main cost factors: fiber grade, resin system and layup complexity. QC covers resin content, void content, dimensional tolerance and mechanical testing; third-party test reports available on request.

What Buyers Ask

Common requests: samples & small runs, MOQ, lead time, export packing, RoHS/REACH or material certificates, and customization for fire, UV or chemical resistance. Provide intended use, dimensions and environment and we will propose the optimal layup and process.

Interested? Send your application details and we'll reply with a concise recommendation and sample options.

Carbon Fiber Sheet Plate Specification: