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Four CCT Diagrams of Steels
Steel name: Steels
Diagram No.: 4971
Type of diagram: CCT
Chemical composition in weight %: No data
Steel group: Steels
Note: Examples of CCT diagrams for low-alloy steels. (a) CCT diagrams of a chromium-molybdenum steel using simulated cooling curves
for water, oil, and air. (b) Computer-calculated CCT diagrams of a nickel-chromium steel containing 0.77 wt% C based on
the cooling curves for water, oil, and air given in (a). The effect of different cooling curves is shown in Fig. 10. Each CCT diagram contains a family of curves representing the
cooling rates at different depths of a cylinder with a 300 mm (12 in.) diameter. The slowest cooling rate represents the
center of the cylinder. As shown in Fig., the rate of cooling and the position of the CCT curves depend on the cooling
medium (water produced the highest cooling rate followed by oil and air, respectively). The more severe the cooling
medium, the longer the times to which the C-shaped curves are shifted. The Ms temperature is unaffected.
Reference: Not shown in this demo version.
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Carbides in Steel
CCT and TTT Diagram Calculating Service
CCT and TTT Diagrams Home
Hardenability Diagrams of Steels
Hardenability Calculating Service
Macro Defects in Steel
Metal Etchants
Non-Metallic Inclusions in Steel
Tempering Diagrams of Steels
Semiconductor Etchants
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.