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Table 5 The specifications of glass fiber

From: R&D on glass fiber reinforced epoxy resin composites for superconducting Tokamak

Specification

Virgin fiber tensile strength (MPa)

Modulus of elasticity (GPa)

Density (g/cm3)

Elongation (%)

Impregnated strand tensile strength (MPa)

Softening point temperature (°C)

E-Glass

3140

73

2.54

4.8

1860

850

R-Glass

3000–3400

80–83

2.65

895