Version 4 of the CQI-9 Special Process: Heat Treat System Assessment is Now Available at the AIAG Store

New publication alert! Developed in collaboration with volunteers from OEMs, Tier 1 suppliers, heat treat suppliers, and calibration companies that service the heat treat industry, the 4^th edition of the Special Process: Heat Treat System Assessment (CQI-9) is now available for purchase at the AIAG Store.   

The CQI-9 4^th edition is a comprehensive audit covering the most common heat treat processes employed by the automotive industry, intended to provide a common approach to a heat treat management system for automotive production and service part organizations.

Now including best practices across many processes and components to share lessons learned globally, the 4^th edition also contains new and modified requirements, along with clarifications for the supply organization to consider in making their self-assessment.

Below are some of the changes in the 4th edition:

• Assessor qualifications for conducting HTSA have been refined.
• Pyrometry reporting requirements have been updated.
• RTDs are now included in the thermocouple section.
• Grace periods are defined in Calibrations, SAT, and TUS sections.
• Expanded guidance and refined requirements are provided regarding instances in which traditional TUS testing is not possible or practical due to furnace design characteristics (e.g. property surveys).
• The formula for calculating the required number of TUS test thermocouples for large furnace volumes has been revised (reference Table P3.4.1, Note #1).
• HTSA format has been enhanced.
• The Calibration requirement for refractometers has been removed.

For a comprehensive list of all the important updates, please refer to the CQI-9 4th edition itself, which is available in both print and electronic formats, exclusively from AIAG. Click here to check out purchase options and get your copy today!