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STEEL FOR CRANKSHAFT AND METHOD OF MANUFACTURING CRANKSHAFT USING THE SAME

  • US 20200131594A1
  • Filed: 08/02/2019
  • Published: 04/30/2020
  • Est. Priority Date: 10/29/2018
  • Status: Active Grant
First Claim
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1. A steel for a crankshaft, comprising:

  • 0.37 to 0.42 wt % of carbon (C), 0.55 to 0.70 wt % of silicon (Si), 1.45 to 1.65 wt % of manganese (Mn), 0.025 wt % or less (excluding 0 wt %) of phosphorus (P), 0.020 to 0.035 wt % of sulfur (S), 0.15 to 0.30 wt % of chromium (Cr), 0.035 to 0.055% of vanadium (V), and a remainder of Fe and other inevitable impurities.

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