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Effect of copper on the grain size and tensile strength of ultra-low carbon steel
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The paper presents a study on the grain size and tensile strength of annealed ultra-low carbon (ULC) steel containing 0.008 wt.% carbon (C) and various contents of copper (Cu). The annealing temperature was predetermined at 700, 800, and 900 °C with the same holding time of 15 minutes and a slow cooling rate. |