Rail having high resistance to wear in its head and high resistance to rupture in its foot
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United States of America Patent
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Mar 11, 1986
Grant Date -
N/A
app pub date -
Oct 1, 1984
filing date -
Oct 4, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a rail having high resistance to wear in its head and high resistance to rupture in its foot. It is the characteristic feature of the invention that after rolling followed by heat treatment the rail has a fine pearlitic structure in the head and a martensitic annealed grain structure in the foot. The invention also includes preferred methods of heat treatment for the rail.
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