A new heavy-gauge steel plate with, a thickness of 270 mm was produced by applying a cladding technology to multiple CC slabs. The tensile strength of the product satisfied the requirements of JIS SS400. The integrity of the bonding interface was verified by ultrasonic testing (UT) and various mechanical tests, including through-thickness tensile and fatigue tests and shear tests. The new heavy-gauge plate produced using cladding technology is expected to be applied to frames, surface tables, and housings. JFE Steel plans to expand the thickness range of heavy-gauge plates produced from CC slabs, which had been limited by the need to control material properties in the rolling process, and will apply this cladding technique to other steel materials.
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