Chromizing

A surface treatment at elevated temperature, generally carried out in pack, vapor or salt bath, in which an alloy is formed by the inward diffusion of chromium into the base metal — predominantly steel or ferrous alloys with chromium. The purpose of this metallurgical process is to prolong the lifespan of components and tools that are typically exposed to corrosion and wear.

There are two primary types:

  1. Anti-corrosion chromizing
  2. Surface hardening

 

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