United States Steel Corporation

With this modeI'll electron microscope
U. S. Steel scientists can study ultra-small
structural features of steel too tillY
to be observed by even the most
powerful light microscopes llsed
for conventionalmagllification. Subjects
call be magnified up to 250,000 times
- a penny magnified to this extent
would be almost three miles across.
Improved raw materials
The economical production of high quality products requires high quality
low cost materials capable of being efficiently utilized. To produce one ton
of finished steel product over 3 1h tons of coal, iron ore, limestone, scrap
and other materials, along with vast quantities of air, must be assembled,
mixed, stirred, cooked and molded - all under controlled conditions. Great
quantities of water are also required. The production of steel is carried out
at extremely high temperatures. The exactness required in controlling this
complex operation for certain commercial products is such that if comparable
specifications were applied in the baking of a cake the housewife
would have to count the grains of sugar going into the batter.
Research on raw materials has led to cleaner coal, more uniform and
stronger coke and more uniformly sized iron bearing materials, all of which
are essential to more efficient iron production. These improvements, combined
with technological advances in the design, instrumentation and control
of blast furnace operations, have resulted in startling accomplishments. For
example, U. S. Steel has produced over 35 per cent more iron in some of its
most modern furnaces than was produced only ten years ago in its then most
modern furnaces.
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