High-Grade Electrical Steel
In 2003, we began expanding our high-grade grain-oriented steel
production capacity and developed new production technologies for
high-grade non-oriented very-low-core-loss electrical steels commonly
used in large motors and generators. We also developed new grain-oriented
low-core-loss electrical steels with magnetic domain refinement
technologies. As we review additional production capacity expansion
for thin-gauge and high-grade grain-oriented electrical steels,
we will continue to boost production of high-grade non-oriented
electrical steels through technical advances and process optimization
to meet increasing demands for applications like environment-friendly
hybrid electric vehicles.
FINEX Ironmaking
Our FINEX process has a host of advantages over the traditional
blast-furnace process. The process offers lower production costs
thanks to the ability to use cheaper coking coal for fuel. FINEX
also eliminates costly up-front investment in sinter and coke plants,
a significant environmental-friendly advance that produces only
6% of the SOx, 4% of the NOx, and 85% of the CO2. Commissioned in
May 2003, our 600,000-ton-per-year FINEX demo plant is now being
used to evaluate and verify process and facility reliability. In
2004, we plan to build and commission our first commercial 1.5-million-ton
capacity plant. We fully expect FINEX technology to emerge as a
leading ironmaking technology that will help keep steel sustainably
growing in the 21st century.
High-Strength Structural Steel
High-strength structural steel used in the construction, automobile,
and shipbuilding industries, high-strength structural steel features
a fine crystalline grain structure approaching 2 microns that is
formed without alloying or heat treatment, resulting in a tensile
strength in excess of 800 MPa. Today, we're developing ultrafine-grain
plate, hot-rolled, and wire rod products using our existing rolling
facilities as we move ahead with projects to commercialize ultrahigh-strength
1,300 MPa-class bolt steel and highly corrosion-resistant steels
that will dramatically extend the service life of seaside steel
structures.
Manufacturing Productivity
At an integrated steelworks, high productivity in the ironmaking
and steelmaking processes is essential to keep downstream processes
working smoothly. In 2003, we continued to develop cutting-edge
technologies, processes, and systems that will enable us to get
more stable and productive performance from our steelworks facilities
in the years ahead. In the ironmaking field, we focused on the operational
stability of our aging blast furnaces as we worked to achieve zero
downtime through a comprehensive inspection and preventive maintenance
regime. We developed and implemented an online furnace temperature
control system at the Pohang No. 4 Blast Furnace. These and other
advances enabled us to increase our 2003 pig iron output by 744,000
tons to 27,314,000 tons.
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