Cost-Effective, High-Impact Steel Replacement Solution
LFT-G® PA6 LCF40 BC04B leverages the superior toughness of Polyamide 6 to create an industrial-grade structural composite capable of surviving immense dynamic impacts. When compared to other reinforced plastics, PA6 LCF40 offers a unique combination of high strength, stiffness, and light weight. Compared to the previous standard steel frame, the LFT part weight is reduced by 52%. The total number of parts consolidation decreased from 32% to 4%. Similarly, it achieved a 25% increase in part breaking force at a 24% lower cost. This makes it the definitive choice for heavy-duty industrial tooling and automotive crash-safety components.
Typical values shown above are for quick engineering reference. PA6 LCF40 provides superior vibration dampening properties compared to PA66 equivalents, critical for NVH (Noise, Vibration, and Harshness) control.
PA6 LCF40 BC04B Material Specifications
This section defines the commercial grade, polymer system, and key material characteristics of LFT-G® PA6 LCF40 BC04B.
| Property | Specification |
|---|---|
| Product Grade | LFT-G® PA6 LCF40 BC04B |
| Material Type | 40% Long Carbon Fiber Reinforced Polyamide 6 |
| Polymer Matrix | Polyamide 6 (PA6 / Nylon 6) |
| Glass / Carbon Content | 40% Industrial Carbon Fiber (B-Series) |
| Available Color | Black |
| Form / Pellet Length | Pellets (Length: 10mm - 12mm) |
| Processing Method | Injection Molding |
| Typical Positioning | Heavy-Duty Industrial Steel Replacement |
Typical Material Properties of PA6 LCF40
| Property | Standard | Value |
|---|---|---|
| Density | ISO 1183 | 1.28 g/cm³ |
| Molding Shrinkage | ISO 294-4 | 0.15–0.25% |
| Tensile Strength | ISO 527 | 261 MPa |
| Tensile Modulus | ISO 527 | 30,669 MPa |
| Elongation at Break | ISO 527 | 2.0–3.0% |
| Property | Standard | Value |
|---|---|---|
| Flexural Strength | ISO 178 | 375 MPa |
| Flexural Modulus | ISO 178 | 20,863 MPa |
| Notched Charpy Impact | ISO 179 | 26 kJ/m² |
| HDT (1.8 MPa) | ISO 75-2 | 208 °C |
| Surface Resistivity | IEC 60093 | 10³ – 105Ω |
Typical values are provided for engineering reference. Actual molded-part performance depends on processing temperatures and mold design. PA6 polymers are hygroscopic; mechanical properties will shift slightly after moisture conditioning.
Injection Processing Guidelines for PA6 LCF40
Dehumidifying
80–100°C / 4–6h
Strictly dry to < 0.15% moisture
Melt Temp
243–270°C
Lower temp profile than PA66
Mold Temp
80–100°C
Improves surface aesthetics
Gate Sizing
Generous Gates
Crucial for preserving fiber length
Engineered for High-Impact Metal Replacement
Because PA6 offers inherently superior toughness and vibration dampening compared to rigid PA66, this LCF40 compound is the supreme choice for components that must survive massive kinetic impacts and continuous resonant vibration.
Automotive Lightweight Seat Frames
Engineering challenge: Seat frames must absorb horrific kinetic energy during crash events without shattering, a strict safety standard that brittle short-fiber plastics fail instantly. Historically, only heavy welded steel frames met these safety regulations.
Why PA6 LCF40: The PA6 matrix provides the essential yielding toughness to absorb crash energy. In a recent structural overhaul, compared to the previous standard steel frame, the LFT part weight is reduced by 52%. The total number of parts consolidation decreased from 32% to 4%. Similarly, it achieved a 25% increase in part breaking force at a 24% lower cost.
Heavy-Duty Power Tool Chassis & Gears
Engineering challenge: Industrial demolition hammers and heavy-duty impact wrenches generate extreme internal vibrations and are routinely dropped onto concrete. The internal chassis must hold gears in perfect alignment while dampening the shock waves.
Why PA6 LCF40: The PA6 polymer naturally dampens NVH (Noise, Vibration, and Harshness) better than rigid PA66, protecting the internal motor. Concurrently, the 40% carbon fiber skeleton provides a phenomenal 18,500 MPa modulus to ensure the gears never slip out of alignment.
E-Bike & Micromobility Structural Frames
Engineering challenge: The electric micromobility sector is aggressively transitioning away from heavy aluminum tubes to injection-molded monocoque frames to reduce weight and integrate battery housings seamlessly.
Why PA6 LCF40: It offers the ultimate cost-to-performance ratio for commercial mobility applications. The compound handles high-stress curb impacts gracefully (24 kJ/m² impact strength) while enabling mass production of incredibly rigid, lightweight bike chassis via single-shot injection molding.
Explore Related Long Carbon Fiber Grades
Depending on your environmental requirements and necessary rigidity, compare PA6 LCF against our PA66 carbon series.
PA6 LGF40
40% Long Glass Fiber PA6. An even more cost-effective alternative for structural components where electrical conductivity and extreme low weight are not required.
View Grade →PA6 LCF40 BC04B
40% carbon fiber providing superior impact toughness, excellent vibration dampening, and high aesthetic surface finish.
Current GradePA66 LCF40
Upgrades the matrix to PA66, sacrificing a small amount of impact toughness to achieve higher flexural modulus (21,000 MPa) and improved heat resistance.
View Grade →
Request PA6 LCF40 BC04B Technical Trial Sample 
Are you actively looking to replace heavy steel or aluminum components with a lightweight, high-impact composite? Contact the LFT-G engineering team to discuss your metal replacement project and request a 25KG PA6 LCF40 technical trial sample.
Email Inquiry: Candyhu@lfrtplastic.com
WhatsApp Directly: +86 13950095707
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