Development of Hot Rolled High Strength Steel CSC ARC-TEN 550Y with Weather Resistance Ability for a Container

by Yumg-Hsiang Chuang, Yuan–Tsung Wang, Wei Lo, Wei Sheng Chien

Publisher - China Steel Corp., Kaohsiung, Taiwan, ROC

Category - Engineering & IT

Traditionally most containers are made of hot-rolled coils of JIS G3125 SPA-H specification or the like. In response to the global new trend of environmental protection, CSC has developed a new generation of ACR-TEN 550Y hot-rolled coil for container use.CSC ACR-TEN 550Y is featured with high yield ratio, high tensile strength, and good atmospheric corrosion resistance. The higher strength that can make container stronger and thinner to decrease weight and save energy and cost is achieved using the mechanism of precipitation hardening and fine-grain microstructure by adding some microalloy elements in the design of the chemical composition. Good atmospheric corrosion resistance that can prolong container’s life cycle is attributed to the addition of P, Cu and Cr. Good weldability that can make welding performance better ispromoted by lower [C] and lower [S]. In summary, with multiple functions, the high strength CSC ACR-TEN 550Y steel is expected to gradually replace JIS G3125 SPA-H as a new material for container use.

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