CORROSION-RESISTANT CLAD STEEL AND METHOD FOR PRODUCING THE SAME

The present invention provides corrosion resistant clad steels comprising a steel core and a cladding of a corrosion resistant metallic material tightly covering the circumference of the core, the interface between the core and cladding being metallurgically bonded. As the core materials, steel bars for concrete reinforcement including PC steel bars or structural shapes (e.g., angles or channels) may be selected depending on the intended use. The clad steel material is produced by a method comprising the steps of arranging the corrosion resistant metallic cladding member over the entire surface of the circumference of the steel core member and hot rolling to form an intimate metallurgical bonding at the interface between both members. The clad steel material may be deformed after hot rolling. The clad steels thus obtained have an advantageous combination of properties, particularly with respect to corrosion and heat resistance, strength, bendability and exhibit no separation of the core and the cladding.