3k 240g Carbon fiber braided fabric – high-performance structural reinforcement solution
Product model: CFW-3K240
Core advantages: Balanced strength and lightweight · Precise 3k weaving process · Industry-customized adaptation
Product technical parameter table
| Parameter Items |
Technical Specifications |
Test Standards |
Application Advantages |
| Fiber Specification |
3K PAN-based carbon fiber (3,000 filaments/bundle) |
ASTM D3379 |
Uniform yarn distribution ensures structural stability |
| Areal Density |
240g/m² ±5% |
ISO 9073-1 |
Medium-weight design balances strength and processing convenience |
| Weave Structure |
Plain weave (twill/satin weave customizable) |
GB/T 7689.2 |
Orthogonal fiber arrangement achieves balanced bidirectional mechanical properties |
| Fiber Volume Fraction |
60%-65% (after resin impregnation) |
ASTM D3171 |
High fiber content enhances load-bearing capacity of composites |
| Tensile Strength |
≥4200MPa (warp) / ≥3800MPa (weft) |
ASTM D3039 |
Bidirectional high-strength characteristics adapt to complex stress environments |
| Elastic Modulus |
≥240GPa (warp) / ≥230GPa (weft) |
ASTM D3039 |
High rigidity reduces risk of structural deformation |
| Elongation at Break |
1.8% (warp) / 1.6% (weft) |
ASTM D3039 |
Excellent fatigue resistance extends component service life |
| Thickness |
0.22mm ±0.01mm |
GB/T 3820 |
Ultra-thin design suitable for precision component molding |
| Temperature Resistance Range |
-196°C to 250°C (short-term resistance up to 300°C) |
ASTM E21 |
Wide temperature stability adapts to extreme environmental conditions |
| Resin Compatibility |
Epoxy resin / unsaturated polyester / vinyl ester resin |
— |
Wide compatibility with mainstream matrix materials enables flexible processing |
Core Product Advantages
-
Precise 3K braiding process for balanced and stable performance
Using 3,000 filaments/bundle raw silk for precision weaving, the yarn distribution uniformity error is <3%, and the warp-to-weft strength ratio is controlled at 1.1:1. This avoids the unidirectional performance (shortcomings) of traditional low-K braided fabrics, making it particularly suitable for manufacturing structural components with strict requirements for bidirectional mechanical properties.
-
240g/m² golden density for multi-scenario adaptability
Compared with ultra-thin fabrics (100-150g, prone to tearing) and heavy fabrics (300g+, difficult to form), 240g/m² achieves three core balances:
- Strength & weight: Specific strength (strength/density) reaches 22×10⁶ N·m/kg, 20 times that of steel
- Rigidity & toughness: Bending strength ≥1,800 MPa, impact absorption energy increased by 15% (vs. 竞品 [competitors] of the same weight)
- Process adaptability: Suitable for hand lay-up, compression molding, RTM, etc., with minimum forming radius ≤50 mm
-
Optimized surface treatment for enhanced composite performance
Treated with surface coupling agents (optional hydroxyl/amino modification), the interfacial bonding strength with resin is increased by 25%, effectively reducing interlaminar shear failure of composites. It is particularly suitable for preparing aerospace-grade load-bearing components.
-
Full-process quality control with industry-leading batch stability
- Raw silk traceability: Each roll of fabric is attached with a unique batch number, traceable to the carbon fiber raw silk production furnace number
- Quality inspection standards: Sampling inspection every 100 meters, key parameters pass rate ≥99.8%
- Certification system: Certified by IATF 16949 automotive quality management system and AS9100 aerospace quality management system
Core Application Areas and Solutions
Aerospace · Preferred for structural weight reduction
Typical applications: UAV fuselage skin, satellite brackets, aircraft engine nacelle components
Solution value: Replacing aluminum alloy components reduces weight by 40% and extends fatigue life by 3 times
Case reference: A commercial UAV manufacturer used CFW-3K240 to prepare the fuselage, achieving a 22% reduction in overall weight and an 18% extension in flight time while maintaining load capacity.
New Energy Vehicles · Three-electric system reinforcement
① Lightweight reinforcement for battery trays
Covers the bottom and sides of the battery pack to improve impact resistance and reduce the risk of short circuits in needle penetration tests. Compared with traditional steel solutions, it reduces weight by 35% and increases battery pack structural rigidity by 25%.
② Motor housing reinforcement
Solves fatigue cracking caused by high-speed motor vibration, with temperature resistance meeting the long-term working requirement of 150°C in the motor compartment.
Sports Equipment · Professional-grade equipment upgrading
Golf club shaft:
Adopts 3K plain weave + epoxy prepreg, increasing ball launch speed by 5% and reducing shaft weight by 12%. The patented grip area thickening design (locally stacked 3 layers) reduces swing vibration and improves hitting accuracy.
Carbon fiber bicycle frame:
Focuses on the seat tube/top tube connection area, increasing frame torsional stiffness by 15% while maintaining light weight (vehicle weight <8 kg).
Construction Reinforcement · Efficient construction solutions
Seismic reinforcement for concrete beams and columns:
240g/m² specification complies with the adhesive requirements of Grade A in GB 50367-2013 Code for Design of Concrete Structure Reinforcement.
Construction advantages: Single worker can construct ≥50 m² per day, 3 times more efficient than steel plate reinforcement, without increasing structural weight.
Industrial Equipment · Special component manufacturing
Wind turbine blade root reinforcement:
Withstands alternating loads under extreme wind speeds of 120 m/s, passing fatigue life tests with over 2 million cycles without damage. Compared with glass fiber cloth, it reduces thickness by 30% at the same strength, lowering mold development costs.
