Heat Treatment, is an online course designed to provide students with an understanding of preheat, local postweld heat treatment (PWHT), and alternative welding methods that can be used in lieu of PWHT. The information provides is sources from Part 3 of the National Board Inspection Code, the ASME Boiler and Pressure Vessel Code, the Welding Research Center, and practical experience.

Learning Outcomes
After completing this course, students will be able to:  

• Define preheat and interpass temperatures.
• Definte key concepts related to preheating.
• Explain why local PWHT is needed.
• Define key terms and concepts related to local PWHT.
• Identify portions of the NBIC that pertain to local PWHT.
• Explain alternative welding methods in lieu of PWHT.
• Identify alternative welding methods presented in the NBIC and explain their requirements.

Reference Materials
Each student is required to have the following materials (currently mandated edition):

• National Board Inspections Code, Part 3,  Repairs and Alterations
• ASME Section I,  Power Boilers
• ASME Section VIII, Div. 1, Rules for Construction of Pressure Vessels
• Calculator

Note: ASME Code and Standards may be ordered through the ASME Web site.

Criteria for Successful Completion
As a minimum, for a National Board Certificate of Completion to be issued, students must:

• actively participate in all online course interactions
• respond to all knowledge check questions