Steel USA – Sparrows Point: A Dedicated Producer of
Quality, Flat Rolled Steels
Norman L. Samways,
Ph.D., technical consultant, Pittsburgh, Pa.
of more than $1 billion over the last 10 years have made Sparrows
Point highly competitive. Recent facilities include a $300-million
cold mill complex and a caster rebuild to produce wide slabs
Improvement at Stelco Hamilton With Limited Hot Metal
Robert Cameron, retired,
George Cuthill, information systems analyst, Ian Deeks, manager
— primary and steelmaking technology, and Rick Minion,
retired, Stelco Hamilton, Hamilton, Ont., Canada (email@example.com,
the last few years, Stelco Hamilton has shifted from a hot
metal–rich operation to being hot metal poor. This article
describes how the steel-to-hot-metal ratio has been continuously
improved in order to maximize steelmaking productivity.
and Cost Improvements Using a Real-time Slag Conditioning Practice
at U. S. Steel Gary Works
G.A. Meszaros (left),
research specialist, U. S. Steel Research & Technology Center,
Monroeville, Pa. (firstname.lastname@example.org); G.E. Goldsmith, process
quality manager — steel producing, I.M. Nickerson, quality
engineer — No. 2 caster, and M.J. McCoy, technical coordinator
— ironmaking, U. S. Steel Gary Works, Gary, Ind. (email@example.com,
real-time ladle slag conditioning practice based on a split
addition before and after degassing of ultralow-carbon grades
was implemented to improve control of slag oxidation potential.
A method to qualify suppliers based on overall slag conditioning
cost and emission performance is also reviewed.
Frank L. Kemeny, president,
David I. Walker, director — research and development,
and Jeremy A.T. Jones, director — engineering and operations,
Nupro Corp., Lewiston, N.Y. (firstname.lastname@example.org, email@example.com,
Several tools have been developed and integrated to provide
a guidance system for optimum vessel tapping. This guidance
system, in turn, has created the opportunity for improved yield,
reduced skimming operations, heat-specific slag conditioning
and therefore reduced costs.
Presence of Titanium in Hot Metal and Its Effects on Desulfurization
Stuart Street, senior
metallurgist, SeverStal North America Inc., Dearborn, Mich.
(firstname.lastname@example.org); Randall P. Stone, senior product
applications manager, Heraeus Electro-Nite Co., Langhorne, Pa.
(email@example.com); and Peter J. Koros, principal, Koros
Associates Inc., Pittsburgh, Pa. (firstname.lastname@example.org)
The presence of titanium in hot metal has traditionally been
a problem for steelmakers for several reasons. This issue, and
related effects on testing the hot metal, are examined in detail
with reference to the literature and plant and laboratory experience.
Hot Metal at Mittal Steel USA
Jack Finlayson, division
manager — iron producing, Mittal Steel USA – Indiana
Harbor, East Chicago, Ind. (email@example.com);
Robert Jason, practice engineer, Mittal Steel USA –
Cleveland, Cleveland, Ohio (firstname.lastname@example.org);
Dale E. Heinz, division manager — primary operations,
and Barry Felton, IPO process and technology manager, Mittal
Steel USA – Burns Harbor, Burns Harbor, Ind. (email@example.com,
firstname.lastname@example.org); and Gary Norgren, division manager
— primary operations, Mittal Steel USA – Riverdale,
Riverdale, Ill. (email@example.com)
Steel USA operates numerous integrated steel mills throughout
North America. The challenges associated with coordinating
iron and hot metal movement among various plants are described.
Optimization of BOF Raw Materials Consumption in a Volatile
Scrap Market and With Limited Hot Metal Availability
Tom Russo, senior manager
— primary operations, Mittal Steel USA – Sparrows
Point, Sparrows Point, Md. (firstname.lastname@example.org); Tim
Miller, research supervisor (retired), Jack Repasch, research
consultant, and Naren Sheth, senior research engineer, Mittal
Steel R&D, Bethlehem, Pa.; and Mark Trapp, plant manager,
U.S. Pipe, Burlington, N.J.
Increasing demand for product, limited hot metal capacity and
high scrap prices present a dilemma for BOF steelmakers. A number
of steelmaking tools have been developed by Mittal Steel USA
to manage the ratio of hot metal to scrap and total production
of a BOF under such conditions.
of a BOF Suspension Lamella Unit at U. S. Steel Edgar Thomson
W. Todd Zeisler, senior
engineer, and J. Kevin Cotchen, senior process engineer —
steelmaking, SMS Demag Inc., Pittsburgh Pa. (email@example.com,
firstname.lastname@example.org); Fred W. Hemingway, project manager,
and William J. Pruss Jr., plant engineering manager, U. S.
Steel Edgar Thomson Plant, Braddock, Pa. (email@example.com,
2004, a burn-through in a BOF vessel at U. S. Steel Edgar
Thomson Works completely severed a lamella and damaged an
adjacent unit. The repair process, including the initial assessment
of damage, and the
ensuing operational strategy are described.
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