| 摘要 |
PURPOSE: Provided is a grate bar for use in pallet in sintering machine is provided, which has superior heat and wear resistance. CONSTITUTION: The grate bar comprises C 1 to 2.5 wt.%, Mn 0.5 to 1.5 wt.%, 0.02 wt.% or less of P, 0.02 wt.% or less of S, Si 0.5 to 2 wt.%, Ni 1 to 2 wt.%, Cr 15 to 30 wt.%, B 0.1 to 2 wt.%, Mo 0.5 to 1.5 wt.%, W 0.2 to 1.3 wt.%, one or more than two elements selected from Nb 0.2 to 1.5 wt.%, V 0.2 to 1.5 wt.% and Ti 0.2 to 1.5 wt.%, a balance of Fe and incidental impurities.
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