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Tensile strength of typical CARBON fibers ranges roughly:
A{'text': '100-500 MPa', 'label': 'A'}
B{'text': '1-10 MPa', 'label': 'D'}
C{'text': '3-7 GPa (for standard PAN-based; ultra-high-modulus pitch fibers are stronger in modulus but lower in strength)', 'label': 'B'}
D{'text': '100-200 GPa', 'label': 'C'}
Answer & Solution
Correct answer: C. {'text': '3-7 GPa (for standard PAN-based; ultra-high-modulus pitch fibers are stronger in modulus but lower in strength)', 'label': 'B'}
Standard PAN-based carbon: 3.5-5 GPa tensile. Intermediate: 5-7 GPa. Pitch-based ultra-high-modulus: 2-3 GPa (modulus is high but strength lower). Specific strength dominates aerospace material choice.
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