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Table 3 Characteristics of milled carbon fiber.

From: Evaluation of Electromagnetic Pulse Shielding Performance of Carbon Fiber-Mixed Cement Paste

Characteristic
Filament diameter (µm) 7
Bulk density (g/ml) 0.22−0.28
Tensile strength (MPa) 3150
Young’s modulus (GPa) 210
Elongation at break (%) 1.1–1.4
Carbon content (%)  > 90
Sizing content (%) 0.5–1
Mean fiber length (µm) 100