AMS2750G to AMS2750H: Key Changes in Pyrometry Requirements

The aerospace industry demands strict control over heat treatment processes to ensure the safety and performance of critical components. To regulate these processes, the AMS2750 standard outlines comprehensive pyrometry requirements for equipment calibration, testing, and temperature uniformity. The latest revision, AMS2750H, introduces several important changes from AMS2750G, reflecting technological advancements and clarifying requirements to maintain high standards in thermal processing. Below is an outline of the key differences and updates.

How to Effectively Review For Heat-Treat Related Certifications

Optimizing Heat Treatment Data Collection: Best Practices

Data collection is a critical component of the heat treatment process, ensuring that all parameters meet stringent quality standards. The topic of data collection in heat treatment often sparks significant discussion, particularly when it comes to complying with Nadcap and AMS2750 requirements. This article explores the best practices for data collection, emphasizing the importance of understanding and adhering to specific guidelines.

Overcoming Quality Challenges in Aluminum Heat Treatment

In the new revision of AMS2750F, selection of correction factors is now defined. When performing a SAT or TUS at a temperature which does not correspond to a tested value on the thermocouple calibration report, AMS2750F permits the selection of a correction nearest the temperature in use or linear interpolation. 

In the new revision of AMS2750F, standard error limit requirements have been removed from Table 1. The error of ±4°F or ±0.75% is no longer permitted.

AMS2750F has added specific items that must be present on thermocouple certifications. These include, but are not limited to:

AMS2750F now addresses the assembly of the hot junction portion of thermocouples. It states that hot junctions may be made by twisting and/or welding or a combination of those, although no addition of filler metal may be used.

AMS2750F now presents a different definition of expendable versus nonexpendable thermocouples. As a thermocouple supplier, we feel it is important to keep our clients informed as to the details of these changes.

Our goal is to keep our clients up to date on the new changes to AMS2750. In today’s blog post, I’m discussing how AMS2750F now permits Type M and Type C thermocouples. It is important to understand the use and limitations of thermocouples prior to use.