high-performance passivates
Published

More on Black Finish on Stainless

One of our readers has suggested another process for getting a black finish on 430 stainless steel.

Share

In the April issue, I answered a question regarding getting a black finish on 430 stainless steel. I suggested the classic hot black oxide process. One of our readers has suggested that another process might also work: using a thermochemical treatment such as shallow nitriding followed by post oxidation. The magnetite that is formed on the surface is black and has good corrosion resistance. Thanks to E.R. for this suggestion. 

Related Content

High-performace passivates
KCH Engineered Systems
Luster-On Products
FISCHERSCOPE® XAN® LIQUID ANALYZER
Hitachi High-Tech FT200 series
PMTS 2025 Register Now!
Filtration Systems
Metal Pretreatment Technology
KCH Engineered Systems