UHS Steel

Steel name: UHS
Diagram No.: 8117
Type of diagram: CCT
Chemical composition in weight %: 0.22-0.24% C, <0.90% Si, 1.40-2.00% Mn, <0.015% P, <0.01% S, 0.02-0.05% Ti, 0.0010-0.0025% B, 0.009% Ce, 0.027% Al
Steel group: Ultra-high strength steels
Note: CCT diagrams of UHS steel plate, (a) cerium-free and (b) 0.009% cerium addition.
Reference: Zhiguo Gao and Liujie Xu, Effects of trace Ce addition on critical cooling rate and Ti (CN) precipitation of ultra high strength steel plate, 2020 Mater. Res. Express 7 106525, https://doi.org/10.1088/2053-1591/abc12b

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