High strength cold finished bars
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United States of America Patent
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Sep 15, 1981
Grant Date -
N/A
app pub date -
Aug 19, 1977
filing date -
Aug 19, 1977
priority date (Note) -
Expired
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Abstract
High strength, cold finished steel bars strengthened through the addition of from 0.05% to 0.15% vanadium and 0.001% to 0.025% nitrogen are produced by a series of steps involving hot rolling, cold drawing, and heat-treatment.
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