When engineering demands the absolute highest stiffness-to-weight ratio feasible in thermoplastics, LFT-G® PA6 CF50 (Model: BC05B) is the definitive choice. This high-grade composite integrates 50% long carbon fiber into a Polyamide 6 matrix, creating a material that effectively bridges the gap between high-performance plastics and aerospace-grade aluminum.
Many engineers search for standard PA6 CF50 (Short Fiber), only to find that such high loading results in brittle parts. LFT-G® solves this using proprietary Long Fiber Technology (LCF). By maintaining fiber lengths of 10-12 mm within the pellet, we create an internal skeletal network. This allows our 50% filled PA6 to offer a flexural modulus exceeding 26 GPa while retaining the toughness necessary for dynamic, crash-critical structures.
Why Choose LFT-G® Domestic Grade 50% Carbon?
Breaking the Cost Barrier for Mass Production.
Historically, 50% carbon fiber composites were restricted to niche aerospace projects due to the high cost of imported fibers (Toray/Tenax). LFT-G® disrupts this market by utilizing premium Domestic T700-level Long Carbon Fiber.
- Performance Parity: Our domestic grade matches 98% of the mechanical properties of imported fibers at a fraction of the cost.
- Strategic Availability: With a localized supply chain, we guarantee stable lead times for large-scale industrial orders, immune to international import quotas.
- Consistent Impregnation: Our specialized die-head technology ensures every single fiber filament is fully wetted out, preventing "dry fibers" common in high-content competitors.
Figure 1: Premium Domestic Carbon Fiber Roving used in LFT-G® Production.
Performance: The "Black Aluminum" Effect
Unmatched Specific Modulus
With a density of only 1.38 g/cm³, LFT-G® PA6 CF50 is half the weight of aluminum but offers comparable stiffness. This "Specific Modulus" is critical for reducing inertia in high-speed rotating machinery.
Superior EMI Shielding
At 50% loading, the carbon network is incredibly dense, providing conductivity levels close to metals (102-103 Ohms). It acts as a natural Faraday cage for sensitive electronics.
X-Ray Translucency
Unlike metals, carbon fiber composites are radiolucent. This makes BC05B an ideal candidate for medical external fixation devices where X-ray visibility of the bone fracture is required.
Technical Data Sheet (Model: LFT-G® PA6-BC05B)
| Property | Test Standard | Unit | Typical Value |
|---|---|---|---|
| Base Resin | - | - | Polyamide 6 (PA6) |
| Fiber Content | ISO 1172 | % | 50% Long Carbon Fiber |
| Density | ISO 1183 | g/cm³ | 1.38 |
| Tensile Strength | ISO 527 | MPa | 290 - 310 |
| Tensile Modulus | ISO 527 | GPa | 34.0 - 35.0 |
| Flexural Strength | ISO 178 | MPa | 400 - 420 |
| Notched Impact Strength | ISO 179 | kJ/m² | 23 - 26 |
| Volume Resistivity | IEC 60093 | Ω·m | 102-103 (Excellent Shielding) |
Advanced Applications: Where Aluminum Fails
Processing Note: 50% Fiber Challenges
Expert Tip: Molding 50% fiber content is different from 30%. The viscosity is high, and feeding can be tricky.
- Feeding: Ensure your hopper throat is cooled to prevent bridging. A larger nozzle orifice (min 6-8mm) is mandatory to prevent clogging.
- Gate Design: Do not use pinpoint gates. Use wide edge gates or sprue gates to ensure the long fibers can flow into the cavity without breaking.
- Surface Finish: High mold temps (100°C+) are required to hide the fiber texture (floating fibers) on the surface.
Push the Limits of Thermoplastics
When aluminum is too heavy, and standard plastic is too weak, choose LFT-G® PA6 CF50.
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