Analysis and Improvement of Center Segregation in 30Cr13 Medium Thick Plate
JIANG Peng
HU Ziming
LI Cui
CAO Peng
ZHANG Lin
Abstract：During the medium and thick plates were produced by using a 200 mm thickness 30Cr13 continuous casting slab,serious center segregation defects appeared at the center thickness layer.To identify the cause,sampling was conducted for analysis,and a macrostructure inspection revealed center segregation of B2.5 level.Metallographic analysis showed that there are residual austenite structure and cluster like carbide precipitation in the center segregation defect.By adjusting the secondary cooling process of the continuous casting machine and using electromagnetic stirring,the soft reduction value was increased,the central segregation defect has been effectively improved.
Keywords：30Cr13 Steelcenter segregationcarbide precipitationelectromagnetic stirringsecondary cooling water
Publication Date：2023-12-20
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 26-28 )