FR-4 vs. G-3 Machining
Comparison of FR-4 and G-3 Property Values
| FR-4 |
|---|
| 0.1 |
| 45,000 |
| 2,700 |
| 0.66 |
| -- |
| Material |
|---|
| Water Absorption Rating |
| Tensile Strength |
| Flexural Modulus |
| Coefficient of Linear Thermal Expansion |
| Dielectric Strength |
| G-3 |
|---|
| 2.65 |
| 42,000 |
| 1,800 |
| 1 |
| -- |
Material Properties
- Extremely high mechanical strength
- Good dielectric loss properties
- Good electrical strength properties
- Machinability
- Excellent flexural, compressive, and impact strengths
- Low moisture absorption
- High dimensional stability
- Machinability
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