Continuous Galvanizing Lines
ArcelorMittal Calvert’s Continuous Galvanizing Lines—HDG #1 & #3, HDG #4, and our Continuous Annealing Line (CAL 2)—deliver high quality Galvanize, Galvanneal, and Aluminized products with exceptional consistency. Through advanced coating & controlled atmosphere heating these lines produce the surface quality and mechanical performance demanded by today’s most critical applications.
ArcelorMittal Calvert has the ability to produce 1.5m tonnes/year of Coated products (under current configuration), including Galvanized (GI) and Galvannealed (GA), as well as 700,000 tonnes/year of fully-finished (continuously annealed) Cold Rolled.
HDGL #1 and #3 Components
HDGLs #1 and #3 produce high-quality GI and GA for both exposed and unexposed applications.
Multiple Coating Pots - Our HDG lines have dedicated coating pots for each different coating type. This allows for superior control of the pot chemistry.
Radiant Tube Atmosphere Controlled Furnace – The lines have “Atmosphere Controlled Radiant Tube Heating,” which provides consistent and uniform mechanical properties.
Rapid Cooling – The lines can quickly and evenly cool the strip after annealing, which produces steel with better strength characteristics and a wider range of mechanical properties.
Continuous Annealing Line
The Continuous Annealing Line (CAL #2) is a critical finishing operation that heat treats cold rolled steel to achieve the precise mechanical and surface properties required for demanding end use applications. By processing steel in a continuous flow, the annealing line enables high efficiency production while supporting a wide range of steel grades, including exposed automotive, advanced high strength steels, and other critical structural applications. The process allows for precise control of microstructure and mechanical performance, helping customers meet exacting specifications for forming, durability, and appearance. Integrated with downstream finishing and coating operations, the Continuous Annealing Line plays a key role in delivering fully finished cold rolled and coated products that meet the performance, quality, and reliability standards of automotive, appliance, and energy markets.
HDGL #4 Components
ArcelorMittal Calvert has a 550,000 tonnes/year line which is designed to produce Aluminized, and Galvanized. The line focuses on flatness-critical construction applications as well as high-heat exhaust systems in the automotive segment.
Multiple Coating Pots – Our HDG line #4 has three coating pots, with each one dedicated to a specific coating type, Aluminized or Galvanized. The multiple pot configuration allows for superior control of the pot chemistry, which gives us the ability to offer a superior product to our customers.
Tension Leveler – The line has a tension leveler device located after the in-line Skin Pass Mill (SPM). The tension leveler, combined with the SPM, allows us to offer an extremely flat product, a very critical attribute to the users of Galvanized in the Construction segment.