This work presents the effect of the cooling rate on the precipitation of super duplex stainless steel. Specimens of super duplex stainless steel with a specific composition were cooled at various cooling rates after being melted at 1550oC in a directional solidification furnace. Ferrite (δ), Austenite (γ), Sigma (σ), and Chi (χ) phases were precipitated when the cooling rate was lower than 0.22 K/s. When the cooling rate was 0.22 K/s or faster, σ and χ phases were not precipitated.