Fives was contracted by China’s Shougang Jingtang United Iron & Steel to design and supply a galvanizing line furnace and inductors for the production of ultrahigh-strength steels (UHSS) at its Caofeidian facility. Fives will supply its Stein Digiflex furnace and Celes inductors for a new continuous galvanizing line with 360,000 tons of annual production.

The Stein Digiflex furnace will be equipped with a FlashCooling system operating at 75 percent of hydrogen in order to reach optimal cooling performance. In addition, the system offers operational flexibility in terms of cooling rate and temperature cycle control. Fives also engineered a selective oxidation system to accurately control the oxidation process.

UHSS are complex materials with carefully selected chemical compositions and multiphase microstructures resulting from precisely controlled heating and cooling processes.