Elastic Section Modulus of a Circle formula |
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| \( S \;=\; \dfrac{ \pi \cdot r^3 }{ 4 } \) | ||
| Symbol | English | Metric |
| \( S \) = elastic section modulus | \( in^3 \) | \( mm^3 \) |
| \( \pi \) = Pi | \(3.141 592 653 ...\) | \(3.141 592 653 ...\) |
| \( r \) = radius | \( in \) | \( mm \) |
