-14经由氧气转炉和电炉生产的辊轴承钢的连铸铸造.pdf

-shape casting / Thin and medium slabs Session 7 1
Continuous Casting of Niobium-Bearing Steels Produced via Basic Oxygen
Furnace or Electric Arc Furnace Steelmaking Route

Steven G. Jansto
CBMM-Reference pany
1000 Old Pond Road
Bridgeville, PA 15017, USA
E-Mail: jansto@

Keywords: carbon equivalent, continuous casting, hot ductility, melting, niobium, surface quality

Abstract
High strength microalloyed steel product quality standards continue to e more stringent to meet ever-increasing
customer requirements. Within the value-added steel sector, virtually all customers are tightening their specifications
requiring less variability and lower acceptable residual elements. Customers demand more consistent mechanical
properties, better steel cleanliness and improved surface and internal quality. There is a need for steel mills around the
globe who expect to cost effectively produce high strength, high quality microalloyed automotive, pipeline and
structural products to incorporate more disciplined steelmaking, clean steel ladle metallurgy and consistent continuous
casting practices to pete in today’s petitive market. This paper describes the Basic Oxygen
Furnace (BOF), Electric Arc Furnace (EAF) and Secondary Ladle Metallurgy (SLM) steelmaking and casting
considerations and mendations that are being implemented today by steelmakers