I.D.# PD261330ON
Access Period: 90 Days
Duration: 1 Hours

This online course teaches about the metallurgy of the following steel through hardening processes: quench and temper, martempering, and austempering. Participants will learn about the effects of heat treating temperature and cooling rate on steel microstructure and properties, and the effects of the interaction between heat treating process parameters and steel composition on through hardened steel microstructure and strength. This course takes one hour to complete.

Is this Metallurgy Online Course for You?
This course is targeted to design, manufacturing, and quality engineers, and sales people and purchasing agents with technical backgrounds. It is suggested that, as a prerequisite, you have knowledge of the concepts covered in our Principles of Metallurgy online course.

Have colleagues who need this course? See Special Offers to the right.

Click on the "Requirements" tab to make sure you are properly equipped to interact with this course.


By participating in this online course, you will be able to:

  • Describe the heat treatment processes used for through hardening
  • List the significant process variables for through hardening
  • Describe the effects on steel microstructure and properties of the significant through hardening and tempering process variables
  • Explain the difference between maximum hardness and hardenability
  • Read a hardenability curve
  • Relate hardenability to through hardened steel microstructure and hardness
  • Explain three common problems encountered with quenching and how to prevent these problems


  • Quench and temper
  • Steel hardenability
  • Common problems associated with quenching (distortion, cracking, retained austenite)
  • Martempering
  • Austempering

Author(s): Industrial Metallurgists, LLC

Industrial Metallurgists, LLC provides materials engineering expertise and training to help you develop and manufacture products. Industrial Metallurgists, LLC believes that understanding the science and engineering of materials enables the design and manufacture of successful products that meet their performance, reliability, and cost requirements.

Materials Provided

  • 90 days (from date of purchase) of online access to the one hour presentation
  • Course handbook (downloadable, .pdf's)
  • Integrated knowledge checks to reinforce key concepts
  • Proof of Participation (Transcript)

About Metallurgy Online Courses

These online courses developed by Industrial Metallurgists, LLC and offered on demand by SAE International cover a variety of metallurgy topics and concepts that apply to common design, manufacturing, and quality situations and problems. Each course is divided into individual modules that can be completed in 30 minutes or less. Each module consists of slides with text, images, video, and narration. Many of the modules contain problems that require students to apply the knowledge learned. Non-graded quizzes at the end of each module and a graded final assessment at the end of each course serve as knowledge checks. Using a laptop or PC with an internet connection, you can learn at your own pace, at times convenient to you.

Equipment Requirements

  • Windows 7, 8 (Apple OSX and Unix/Linux are not supported but may work)
  • Pentium 4 PC
  • Minimum 512 MB RAM; recommended 1 GB RAM
  • Internet Explorer 10-11, Mozilla Firefox 37+, Google Chrome 42+ (Safari and Opera are not supported)
  • Broadband-1Mbps minimum

Full Course
Members save up to 20% off list price.
Email CustomerService@sae.org, or call 1-877-606-7323 (U.S. and Canada) or 724-776-4970 (outside US and Canada).
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