Reduction in endurance limit due to surface finish (steel parts).
Hardness (HB)
Tensile strength Su (ksi)
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where: |
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A - Mirror-polished. |
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B - Fine-ground or commercially polished. |
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C - Machined or cold drawn. |
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D - Hot-rolled. |
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E - As forged. |
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F - Corroded in tap water. |
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G - Corroded in salt water. |