52100

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English

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Etymology

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Coined by the U.S. SAE iron and steel committee in 1919, replacing the earlier designation 52-95; being a 52-series iron alloy (steel).

Noun

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52100 (uncountable)

  1. (US, metallurgy) A common ball bearing metal, also used for blademaking, knifemaking. A high-carbon low-alloy chromium steel; typically containing 1.0% carbon and 1.5% chromium, with low silicon (0.25%) and manganese (0.35%).[1][2][3][4]
    52100 bearings developed the largest compressive residual stress.
    52100 continues to be the most used bearing steel.
    In the annealed condition 52100 is comparatively easy to machine.

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References

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