RAILROAD STEELS HAVING IMPROVED RESISTANCE TO ROLLING CONTACT FATIGUE
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United States of America Patent
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Issued Date -
Feb 26, 2009
app pub date -
Aug 23, 2007
filing date -
Aug 23, 2007
priority date (Note) -
Abandoned
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Abstract
Steels having a pearlitic structure and containing 0.6 to 0.8 wt. % carbon; 0.70 to 1.00 wt. % silicon and 0.8 to 1.2 wt. % manganese can be further alloyed with chromium, molybdenum, vanadium, niobium and/or copper and used to make railway wheels, railway rims and railway rails that are particularly resistant to rolling contact fatigue and, hence, shelling.
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