PBT GF40 Technical Data (Estimated Typical Values)
| Property | Value | Test Standard |
|---|---|---|
| Glass Fiber Content | 40% | ISO 1172 |
| Tensile Strength | 135 – 155 MPa | ISO 527 |
| Flexural Modulus | 11,000 – 13,000 MPa | ISO 178 |
| Notched Impact Strength | 6.5 – 8.5 kJ/m² | ISO 180 |
| HDT @1.8 MPa | 215 – 225 °C | ISO 75 |
| Comparative Tracking Index (CTI) | 525 V | IEC 60112 |
PBT GF Series Performance Comparison Table (Estimated Typical Values)
| Property | PBT GF10 | PBT GF15 | PBT GF20 | PBT GF30 | PBT GF40 | PBT GF50 |
|---|---|---|---|---|---|---|
| Glass Fiber Content | 10% | 15% | 20% | 30% | 40% | 50% |
| Tensile Strength | 70 – 85 MPa | 85 – 100 MPa | 100 – 120 MPa | 120 – 140 MPa | 135 – 155 MPa | 150 – 170 MPa |
| Flexural Modulus | 5,000 – 6,500 MPa | 6,500 – 7,800 MPa | 7,500 – 9,000 MPa | 9,000 – 11,000 MPa | 11,000 – 13,000 MPa | 13,000 – 16,000 MPa |
| Notched Impact Strength | 5 – 7 kJ/m² | 5.5 – 7.5 kJ/m² | 6 – 8 kJ/m² | 7 – 9 kJ/m² | 6.5 – 8.5 kJ/m² | 6 – 8 kJ/m² |
| HDT @1.8 MPa | 180 – 195 °C | 190 – 205 °C | 200 – 210 °C | 210 – 220 °C | 215 – 225 °C | 220 – 230 °C |
| CTI (Comparative Tracking Index) | 600 V | 600 V | 575 V | 550 V | 525 V | 500 V |
| Key Profile | Cost-effective stiffness & fast cycles | Balanced entry-level for technical parts | Precision & excellent surface finish | Best balance of strength, heat & electricals | High rigidity for demanding structural parts | Maximum stiffness for metal replacement |
PBT GF40 Key Advantages
✅ Extreme Rigidity for Minimal Deflection: Engineered to provide the highest level of stiffness in the mid-range series, dramatically reducing flexure and creep under extreme and continuous mechanical loads.
✅ Maximum Dimensional Stability Under Load: Offers exceptional long-term dimensional hold and resistance to creep, even at elevated temperatures, critical for precision bearings, gears, and structural housings.
✅ High-Performance in Demanding Environments: Delivers robust thermal capabilities and maintained chemical resistance, suitable for advanced applications where structural performance is paramount.
Industry Applications:
Explore the PBT Glass Fiber Series in Detail
Click on the links below to view comprehensive technical data, key advantages, and application details for each specific grade.
| Grade | Best For | Overview | Full Details |
|---|---|---|---|
| PBT GF10 | Cost-effective enhancement of stiffness, dimensional stability & speed in electrical components. | The most accessible GF grade, offering faster cycle times, improved rigidity, and excellent electrical insulation over unfilled PBT. | View PBT GF10 Full Data Sheet → |
| PBT GF20 | High-precision structural parts demanding stability, smooth surface finish & good electrical properties. | A balanced performer, excelling in dimensional accuracy, surface quality, and a robust property profile for technical components. | View PBT GF20 Full Data Sheet → |
| PBT GF30 | High-strength components under thermal & mechanical stress with stringent electrical requirements. | The industry benchmark, providing an optimal balance of high mechanical strength, thermal resistance, and unwavering dielectric properties. | View PBT GF30 Full Data Sheet → |
| PBT GF40 | Ultra-stiff, high-load applications where minimal creep and maximum dimensional stability are critical. | Engineered for maximum rigidity and long-term dimensional stability under continuous load, even in elevated temperatures. | View PBT GF40 Full Data Sheet → |
| PBT GF50 | Maximum mechanical performance for metal replacement in demanding electrical/structural applications. | The pinnacle grade, delivering peak strength, stiffness, and heat resistance for the most demanding technical applications. | View PBT GF50 Full Data Sheet → |
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. Discover E&E Solutions → |
| Industrial Equipment | Gears, bearings, machine housings, rollers, mechanical components. See Industrial Uses → |
How to Choose the Right PBT GF Grade?
In simple terms:
For a cost-effective enhancement of stiffness, dimensional stability, and faster cycle times in electrical housings, connectors, or basic structural parts, consider PBT GF10.
For the optimal balance of strength, precision, surface finish, and excellent electrical properties in demanding technical components like gears, automotive sensors, or high-quality connectors, choose PBT GF30. It is the performance benchmark for most structural electrical applications.
For the ultimate stiffness, strength, and long-term dimensional stability under high continuous load and heat in metal replacement or high-load structural applications, consider PBT GF50.
Unsure which is perfect for your part? Describe your application to our engineers for a tailored recommendation: https://nylonplastic.com/contact/
Why Choose Us?
PBT GF40 FAQ
Q1: What is the primary application for PBT GF40?
PBT GF40 is engineered for high-load structural applications where minimal flexure and long-term dimensional stability are critical. Typical uses include high-performance gears, pump housings, structural brackets, and components in electromechanical systems that must resist creep under constant stress.
Q2: How does PBT GF40‘s creep resistance compare to lower grades?
The creep resistance of PBT GF40 is significantly superior to grades with lower fiber content. The high glass fiber loading greatly reduces the material‘s tendency to slowly deform over time under a constant load, especially at elevated temperatures. This makes it the preferred choice for parts under permanent mechanical stress.
Q3: Is special tooling needed for PBT GF40?
Due to its high filler content and abrasiveness, hardened tool steel is strongly recommended for molds running PBT GF40 to ensure longevity. Proper gate and runner design are also crucial to facilitate flow and minimize wear.
