Smelting method for titanium-containing austenitic stainless steel
2007
Method for smelting titanium-containing austenitic stainless steel, the molten steel after it is added to the AOD refining of LF refining, the following steps: 1) LF furnace to the molten steel after addition of lime, fluorite and aluminum slagging; 2) after the slagging FeNb was added, the Nb is added in an amount of 0.10% to 0.20% of molten steel; 3 silicon wire feed) temperature is 1540 ℃ 4 m / t; 4) of FeTi is added, the Nb is added in an amount 0.10% -0.15% of the molten steel, guaranteed (0.5Nb + Ti) ≥6C, and stirred; component 5) of molten steel (wt%) of the station when the following values, C≤0.04%, Si 0.40% -0.70% , Mn0.80% -1.50%, P≤0.030%, S≤0.005%, Ni 17.02% -17.80%, Cr 9.02% -9.15%, N≤0.015%, (0.5Nb + Ti) ≥6C, remainder Fe and unavoidable impurities, is cast into a slab. The process of the method for smelting titanium-containing austenitic stainless steel less difficulty, easy to grasp, low rejection rate.
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