Boronizing (also known as boriding) is a thermo-chemical surface hardening process in which boron atoms are diffused into the surface of a work piece to form complex borides (i.e. – FeB/FeB2) with the base metal. There is no mechanical interface between the complex borides and the substrate as this is a true diffusion process. The resulting case layer has a hard, slippery surface capable of performing at higher temperatures than most surface treatments. Practically any ferrous material can be boronized, as well as many Ni, Ti & Co alloys.


This needs to be done inside an alloy retort inside the kiln. Typically the process is run under Argon.


Wear resistant components.


Any round kiln like a Jupiter. Special alloy retorts can be provided.

Recommended Kilns

The L&L Flagship Kiln: Six popular Easy-Fire models. Multi-Zone control. Sectional. Easy maintenance. Sizes from 2.5 to 10.2 cubic feet. Most models and voltages are Cone 10.
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Large Square and Rectangular Production kilns. Multi-Zone Control. Floor-standing panel. Spring-loaded hinge. Sectional. Easy Maintenance. Sizes From 5 To 34.5 Cubic Feet. Cone 10.
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