Industries is prepared to meet all your black oxide needs. The
same great quality and service that has helped Astro earn your
business for the past 26 years can now be trusted to include
your black oxide needs.
oxide is and excellent and economical coating for steel. It
provides a rich black color and excellent corrosion resistance
when used in conjunction with the proper post oil dip. A key
benefit is that the fact that black oxide will not cause any
dimensional change to the part.