Metal Fabricating Glossary

HRP&O

 noun

Definitions

1. An abbreviation for hot-rolled pickled and oiled, which is a treatment applied to some metal after it has been hot-rolled. The treatment consists of passing the metal through an acid to remove surface oxides, and then rinsing and oiling the metal to reduce the formation of rust.

If you have any comments or questions about the glossary, please contact Dan Davis, editor-in-chief of The Fabricator.