Continuous Pickling Line

  • Tension Leveling and Laser Welding to Provide for Better Surface Quality. AM/NS Calvert has a 1.1m tonne/year stand-alone CPL and supporting Slitter Line Hot (SLH) to service the needs of Hot Rolled Pickled & Oiled (HRP&O) customers without having to go through outside processing. Since very few steel mills have stand-alone CPLs dedicated to producing HRP&O products, the addition of the CPL greatly simplifies the supply chain for our customers.

  • Laser Welder and Tension leveling – The laser welder in the entry area of the CPL produces a virtually invisible weld and, therefore capable of passing through the tension leveler, allowing us to process a wide range of products (thicknesses, widths, and chemistries).

The high capacity tension leveler guarantees a product with superior flatness for our Hot Roll Pickled (HRP) customers and provides a highly efficient pickling process, thus producing a steel strip consistent from end-to-end.

cold rolled mills

Tandem Cold Mill w/ Pickling Line

  • Superior Flatness, Gauge Control, and Mechanical Properties. AM/NS Calvert has as 2.5m tonne/year PL-TCM. The production concept is not unique to our facility, but the “coupling”, or connecting, of a pickling line to a cold rolling mill (CRM) provides for a high-level of production efficiency by eliminating the typical recoiling of strip at the pickling line exit and then subsequent uncoiling of strip as it is loaded into a CRM. 

  • Laser Welder and Tension leveling - Exactly the same as the advantage provided in the CPL. The laser welder in the entry area produces a virtually invisible weld after cold reduction. The Tension Leveler ensures a consistent product is delivered to the Tandem Mill, thus producing a steel strip that has been pickled and cold-rolled consistently from end-to-end. 

  • 5-Stand CVC Plus Tandem Mill – Similar to the advantage provided by the Finishing Mill located in the HSM, the “tandem mill” provides superior flatness and gauge control. The “full hard” substrate is automatically conveyed to one of our Hot Dip Galvanizing (HDGL) or Continuous Annealing (CAL) lines.