Gas nitriding — the workhorse and its limits

How dissociating ammonia builds a case in a sealed retort, what the Floe 2-stage cycle actually does, and the difference between a controlled and uncontrolled gas nitride process.

9 min readLesson 3 of 12

Step 4 of 4Predicting the case by application

The numbers above only matter if you can translate them into a target case for a real part. Forge die, stamping die, plastic mold, gear, and extrusion die each call for different combinations of case depth, compound layer thickness, and phase.

Quick check

You have an H13 forge die in production where the failure mode is compound-layer spalling under impact. What gas nitride recipe targets the right case?