PBT GF30 Technical Data (Estimated Typical Values)
| Property | Value | Test Standard |
|---|---|---|
| Glass Fiber Content | 30% | ISO 1172 |
| Tensile Strength | 120 – 140 MPa | ISO 527 |
| Flexural Modulus | 9,000 – 11,000 MPa | ISO 178 |
| Notched Impact Strength | 7 – 9 kJ/m² | ISO 180 |
| HDT @1.8 MPa | 210 – 220 °C | ISO 75 |
| Comparative Tracking Index (CTI) | 550 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 GF30 Key Advantages
✅ Optimal Structural & Electrical Balance: Represents the industry benchmark, offering an exceptional balance of high mechanical strength, thermal resistance, and reliable dielectric properties for demanding technical applications.
✅ Superior Creep Resistance & Long-Term Stability: Exhibits excellent resistance to deformation under continuous mechanical and thermal stress, ensuring part integrity and dimensional hold over the product lifecycle.
✅ Enhanced Performance in Harsh Conditions: Combines good chemical resistance with significantly improved heat deflection temperature, making it suitable for under-the-hood automotive and high-temperature electrical applications.
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 GF30 FAQ
Q1: Why is PBT GF30 considered the ‘benchmark‘ grade?
PBT GF30 is widely regarded as the benchmark because it achieves the optimal balance of key engineering properties: high mechanical strength and stiffness, good thermal resistance, excellent dimensional stability, and maintained electrical insulation (CTI). It offers the most versatile performance profile for a wide range of demanding structural and electrical applications.
Q2: Is PBT GF30 suitable for thin-walled connectors?
Yes, it is an excellent choice. Its fast crystallization rate, high flow length, and low warpage make PBT GF30 highly suitable for molding complex, thin-walled components like miniaturized connectors, where maintaining dimensional accuracy and high pin retention force is critical.
Q3: How does its CTI compare to lower GF grades?
While still offering excellent insulation, the CTI of PBT GF30 (typically ~550 V) is slightly lower than that of GF10 or unfilled PBT due to the higher glass fiber content. It remains well above the threshold for many safety-critical applications (which often require >250V or >400V), but for maximum tracking resistance, unfilled or lower-filled grades may be preferred.
