FR-4 vs. G-5 Machining

Comparison of FR-4 and G-5 Property Values

FR-4
0.1
45,000
2,700
0.66
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Material
Water Absorption Rating
Tensile Strength
Flexural Modulus
Coefficient of Linear Thermal Expansion
Dielectric Strength
G-5
0.6
61,600
2,000
1
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Material Properties

  • Extremely high mechanical strength
  • Good dielectric loss properties
  • Good electrical strength properties
  • Machinability
  • Good dimensional stability
  • Caustic resistant
  • High arc resistance
  • Machinability

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