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EM812 Steel
Steel name: EM812
Diagram No.: 8113
Type of diagram: CCT
Chemical composition in weight %: 0.12% C, 0.25% Si, 0.90% Mn, 0.015% P, 0.002% S, 0.51% Cr, 0.36% Mo, 1.25% Ni, 0.017% V, 0.005% Ti, 0.19% Cu, 0.060% Al, 0.0015% B
Steel group: Alloy steels
Note: Continuous cooling transformation (CCT) diagram for EM812 steel, austenitised at 1250 C for 13 s and helium cooled at rates corresponding to delta t8/5 values of 1 to 50 s. [After Ref. 10].
Reference: Dunne, Druce P. and Pang, W, "Displaced hardness peak phenomenon in heat-affected zone of welded quenched and tempered EM812 steel" (2017). Faculty of Engineering and Information Sciences - Papers: Part A. 6321. https://ro.uow.edu.au/eispapers/6321
Reference [10]: Liang Chen: “Characterisation of transverse cold cracking in weld metal of a high strength quenched and tempered steel”, Ph.D Thesis, The University of Wollongong, 2000.
Transformation Diagram
Click the image to enlarge the diagram.
Disclaimer: The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.