PA66 LCF30 - 30% Long Carbon Fiber Reinforced Nylon 66
● What is PA66 LCF30 material?
PA66 LCF30 (Long Carbon Fiber 30%) is a high-performance polyamide 66 compound reinforced with 30% long carbon fiber. Unlike standard short-fiber compounds, the continuous-fiber architecture within each pellet creates a rigid internal skeletal network that delivers exceptional strength, stiffness, and dimensional stability under sustained mechanical and thermal stress.
This material is engineered for metal-to-plastic conversion in automotive, industrial, and aerospace applications - offering up to 40% weight reduction without sacrificing structural integrity.
● Key Features
Mechanical Excellence
High load-bearing capacity with minimal creep over time.
Thermal & Chemical Resistance
Withstands oils, fuels, and elevated under-hood temperatures.
Impact & Fatigue
Outstanding damage tolerance and long-term cyclic durability.
Processability
Injection-molding compatible • Low shrinkage • Wide processing window.
● Long Fiber vs Short Fiber: Who Has Better Performance?
Long carbon fibers (>5 mm) create a continuous reinforcing network for efficient stress distribution, while short fibers (<0.5 mm) have restricted load transfer capacity.
Normalized testing confirms PA66 LCF30 achieves noticeably better overall mechanical performance than PA66 SCF30 across all key test items.
● Technical Data Sheet
| Property | Value | Test Method |
|---|---|---|
| Specific Gravity | 1.23 g/cm³ | ASTM D-792 |
| Molding Shrinkage (3.2 mm) | 0.10 – 0.20 % | ASTM D-955 |
| Tensile Strength | 245 MPa | ISO 527 |
| Tensile Modulus | 23,060 MPa | ISO 527 |
| Tensile Elongation | 0.8 – 1.5 % | ISO 527 |
| Flexural Strength | 334 MPa | GB/T 9341 |
| Flexural Modulus | 14,396 MPa | GB/T 9341 |
| Notched Izod Impact | 352 J/m | ASTM D-256 |
| Notched Charpy Impact | 34 kJ/m² | ISO 179 |
● Processing Guidelines – Injection Molding
- Pre-drying
3–5 hrs @ 85–110°C
Moisture < 0.05% (dehumidifying dryer recommended).
- Melt & Mold
Melt 267–299°C • Mold 80–100°C
Use a low-shear screw, large gates (≥5 mm).
- Injection & Purge
Pressure 85–135 MPa • Purge with PE/PP before shutdown.
Do not leave long-fiber melt in barrel.
● Applications
Automotive Under-Hood
Engine covers, transmission mounts, fluid housings. Withstands oils, fuels, and 150°C+ under-hood heat.
Aerospace & Drones
Drone chassis, propeller guards, interior brackets-exceptional strength-to-weight ratio for maximum payload.
Industrial Machinery
Pump housings, heavy-duty gears, conveyor systems. Low creep under prolonged mechanical stress.
E-Mobility & Electronics
Battery housings, structural brackets, heat-dissipation components. Lightweight, EMI-shielding capable.
Q: Why choose PA66 LCF30 over short fiber PA66?
A: Long carbon fibers form a continuous 3D skeletal network inside the part. This delivers 2x higher creep resistance, superior fatigue endurance, and high impact strength – performance that short fiber compounds simply cannot achieve under prolonged stress.
Q: What are the key injection molding parameters for PA66 LCF30?
A: For LFT-G® PA66 LCF30 Melt temperature 267–299°C, mold temperature 80–100°C. Pre-dry to below 0.05% moisture using a dehumidifying dryer. Use large gates (> 5 mm), full-round runners, and low-shear screws to preserve fiber length and maximize mechanical properties.
Q: Can PA66 LCF30 replace aluminum die-cast parts?
A: Yes. LFT-G® PA66 LCF30 cuts weight up to 40% while matching aluminum stiffness. Withstands 150°C+, resists oils, and eliminates post-machining. Widely used for brackets, housings, and structural frames.
Contact: Emily
Email: sale04@lfrtplastic.com
WhatsApp / Mobile: +86 188 5034 4811
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