Effect of the Arc Furnace Manufacturing Process, Blast Furnace Manufacturing Process, and Carbon Content on the High-temperature Oxidation of Hot-rolled Steel between 650 and 900 ℃

摘要

Hot-rolled steel plates of SPHC and SS400 were oxidized at 600, 750 and 900 C for 2 hr in air. With an increase in the oxidation temperature, their oxidation rates increased, and this was accompanied by the formation of pores and cracks in the thickened oxide scales, which were non-adherent. SPHC steels manufactured by either an arc furnace or a blast furnace displayed similar oxidation rates, indicating that their oxidation rates were insensitive to the manufacturing process. Medium-carbon SS400 steel displayed somewhat faster oxidation rates than low-carbon SS400 steel, indicating that the carbon content did not significantly influence the oxidation rates.