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Ck45 Steel
Steel name: Ck45
Diagram No.: 8333
Type of diagram: CCT
Mat. No. (Wr. Nr.) designation: 1.1191
DIN designation: Ck45
AISI/SAE designation: 1045
Chemical composition in weight %: 0.42-0.50% C, max. 0.40% Si, 0.50-0.80% Mn, max. 0.030% P, max. 0.035% S
Steel group: Carbon steels
Note: Austenitizing temperature: 850 C. CCT diagram of the unalloyed
steel DIN Ck45 (austenitizing temperature
850 C), with superimposed cooling
curves measured in the core of round
bars of different diameters cooled in air.
Reference: Not shown in this demo version.
Spur, G.; Stoferle, T. (Eds.) Handbuch der Fertigungstechnik; Warmebehandeln, Carl Hanser: Munich,
Germany, 1987; Vol. 4/2.
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.