PA66 GF40 | 40% Glass Fiber Reinforced Nylon 66 – Nylon Plastic

What is PA66 GF40?

PA66 GF40 is a high-performance engineering thermoplastic where nylon 66 is reinforced with 40% glass fibers. Positioned between the popular GF30 and the ultra-high modulus GF50, it is designed for applications demanding significantly higher stiffness, strength, and thermal resistance than GF30 can provide, but where the full performance (and processing difficulty) of GF50 is not required. It represents a committed step into the high-performance tier of reinforced plastics.

Why Choose PA66 GF40?

Targeted High Performance: For when PA66 GF30 is at its limit, GF40 provides the necessary upgrade in mechanical and thermal properties without jumping to the extreme of GF50.

✅  Optimized for Demanding Environments: Ideal for components that must withstand high structural loads and elevated temperatures simultaneously, such as in advanced automotive or industrial machinery.

Technical Processing Support: We provide essential guidance to successfully process this high-fiber material, balancing parameters to achieve optimal part quality and property retention.

✅ Fast Delivery: Reliable supply chain from prototyping to mass production

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PA66 GF40 Technical Specifications

Property Value Test Standard / Note
Glass Fiber Content 40% (±2%) ISO 1172
Density 1.45 – 1.50 g/cm³ ISO 1183
Tensile Strength 170 – 210 MPa ISO 527
Flexural Modulus 9,500 – 12,500 MPa ISO 178
Impact Strength (Notched Izod) 8 – 12 kJ/m² ISO 180
Heat Deflection Temp. (HDT) 254 – 258 °C @ 1.8 MPa ISO 75
Melting Point 255 – 265 °C ISO 3146
Moisture Absorption ~0.8% (23°C/50% RH) ISO 62

PA66 Series Material Performance Comparison Table:

Property PA66 GF15 PA66 GF30 PA66 GF40 PA66 GF50 PA66 GF60
Glass Fiber Content 15% 30% 40% 50% 60%
Tensile Strength (MPa) ~120 ~175 ~190 ~210 ~220
Flexural Modulus (MPa) ~5,500 ~8,750 ~10,500 ~14,000 ~16,000
Notched Impact (kJ/m²) ~13 ~11.5 ~10 ~9 ~7.5
HDT @1.8MPa (°C) ~240 ~252 ~255 ~257 ~260

Key Advantages of PA66 GF40:

✅ High-Strength & High-Stiffness:

Offers excellent tensile strength and flexural modulus, suitable for heavily loaded structural components.

✅Superior Heat Resistance:

Maintains mechanical properties and dimensional stability at continuous high temperatures (HDT >250°C), outperforming many engineering plastics.

✅Excellent Dimensional Stability:

 Very low moisture absorption and thermal expansion ensure parts maintain precision in varying environments.

✅ Good Chemical & Wear Resistance:

Inherits good resistance to oils, fuels, and chemicals from PA66, with enhanced wear resistance due to high fiber content.

 

Industry Applications:

the crucial role of injection molding in automotive industry

PA66GF40 is commonly used in automotive components, interior parts, and other applications that require a good surface finish and fundamental rigidity.

Powering Innovation Across Industries

Industry Key Applications
Automotive Engine covers, intake manifolds, structural brackets, sensor housings, connectors.
Explore Automotive Applications →
Electrical & Electronics Circuit breakers, switches, connector housings, insulating components.
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Industrial Equipment Gears, bearings, machine housings, rollers, mechanical components.
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Various application scenarios of PA plastics
Various application scenarios of PA plastics

How to Choose the Right PA66 Grade?

For optimal toughness and cost-effectiveness, start with PA66 GF15. It provides a solid upgrade from unreinforced PA66, offering solid strength and good impact resistance for general industrial and automotive components.

For the best all-around, industry-proven performance, choose PA66 GF30. It delivers an excellent balance of high strength, stiffness, and exceptional heat resistance (HDT >250°C), making it the default choice for demanding structural and under-hood applications.

For a measurable performance upgrade where standard grades reach their limit, consider PA66 GF33. This grade offers higher stiffness and thermal margin than GF30, ideal for precision parts requiring guaranteed performance.

For maximum stiffness, strength, and thermal resistance where metal replacement is the goal, look to PA66 GF50 or PA66 GF60. These high-fiber grades deliver near-metallic properties for extreme loads and temperatures, but require careful evaluation of their reduced impact toughness and significant processing challenges.

Why Choose Us?

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FAQ Section:

Q: Can I get a sample before placing an order?
A: Yes! We provide free samples for qualified projects.

Q: What’s the lead time for production?
A: Standard grades: 5-7 days; Custom formulations: 2-3 weeks.

Q: Do you provide material certifications?
A: Yes, we provide full material documentation and certifications.

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