About
CSI is the leading producer of flat rolled steel in the Western United States, producing the widest range of flat rolled steel products in the region. We are the only West Coast steel supplier capable of producing over 2 million tons of steel representing five different product lines: hot rolled, pickled and oiled, galvanized, and cold rolled sheet, and electric resistance welded pipe.
Our company’s quality management system has been certified to meet the requirements of ISO 9001-2015 for the production of our entire product line.
Products
- Hot Rolled Steel
- Pickled and Oiled Steel
- Galvanized Steel
- Cold Rolled Sheet Steel
- Electric Resistance Welded Pipe
* Find more information about CSI’s products.
Locations
- Fontana, CA
* Find more information about CSI’s locations.