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Get TTT and CCT Diagram with Steel Composition

Instructions: Type in the Steel Compositions and CCT details and and press 'Make Graph'. 
(Make sure that concentration of alloying elements are less than 5 wt.%)


Carbon wt.%: Silicon wt.%: Manganese wt.%:
Nickel wt.%: Molybdenum wt.%: Chromium wt.%:
Vanadium wt.%: Cobalt wt.%: Boron wt.ppm:

Austenitizing Temperature / Kelvin (you can input 0, if you wish T = Ae3':

Minimum Cooling Rate K/s: 
Maximum Cooling Rate K/s: 
Minimum Time in Graph: 
Maximum Time in Graph: 

First Name:  

Last Name: 

Email:  

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This takes about 45 seconds when the server is not busy, longer if it is.
If you get a "no data" result, please try again. If you continue to experience problems, contact mgallagher@ewi.org
 


 

Limitations

  • Overall alloying element concentration should be less than 5-6 wt.%.
  • Minimum carbon concentration 0.03 (you can experiment, if problem occurs you will get time out error.Also if you give zero carbon concentration, it will assume 0.01 wt.%).
  • 100 data points (will change in future version).
  • The axis ranges are fixed (will change later on).

References for TTT & CCT prediction

  • H. K. D. H. Bhadeshia: Metal Science, 1982, 16, 159-165
  • S. S. Babu: "Acicular Ferrite and Bainite in Steels," Ph.D Thesis, University of Cambridge, UK, 1992.

 

Disclaimer

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The on-line calculations are for educational purposes only and are based on published work in the literature. Some of the modules were developed at Oak Ridge National Laboratory (ORNL) and have been made available to EWI members as a part of the memorandum of understanding between ORNL and EWI. For additional information, please contact Edison Welding Institute

For Educational Purposes only, read disclaimer before using.