FR-5 vs. Vespel Machining
Comparison of FR-5 and Vespel Property Values
G-11 |
0.2 |
43,000 |
3,000 |
0.83 |
-- |
Material |
---|
Water Absorption Rating |
Tensile Strength |
Flexural Modulus |
Coefficient of Linear Thermal Expansion |
Dielectric Strength |
Unfilled |
15% Graphite |
40% Graphite |
10% PTFE, 15% Graphite |
15% Moly |
0.24* |
0.19* |
0.14* |
0.21* |
0.23* |
12,500* |
9,500* |
7,500* |
6,500* |
8,200* |
-- |
-- |
-- |
-- |
-- |
3.0 |
2.7 |
2.1 |
3.0 |
2.9 |
560 |
250 |
-- |
-- |
-- |
Material Properties
- High Dielectric Strength
- Radiation Resistant
- High Tensile Strength
- Low Cold Flow Or Creep
- Chemically Resistant
- High Flexural Strength
- Dimensional Stability
- Low Moisture Absorption
- Low Dissipation Factor
- High Impact Strength
- Cryogenic Serviceability
- Continuous performance at up to 600°F
- No special machining equipment required
- Dimensionally stable
- Operates at very high PVs
- Does not become brittle even at subzero temperatures
- Machinability
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