Martensitic stainless steel and method of the manufacture
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United States of America Patent
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Jul 20, 2010
Grant Date -
Jan 4, 2007
app pub date -
Jun 16, 2006
filing date -
Jun 30, 2005
priority date (Note) -
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Abstract
The invention relates to a martensitic stainless steel to be used for making a razor, surgical and similar blades or other cutting tools, which steel contains 0.40 to 0.55 wt % carbon, 0.8 to 1.5 wt % silicon, 0.7 to 0.85 wt % manganese, 13.0 to 14.0 wt % chromium, 1.0 to 1.5 wt % molybdenum and 0.2 to 0.4 wt % nickel, 0.02 to 0.04 wt % nitrogen, the balance of the steel being iron and inevitable impurities. The invention also relates to a method of manufacturing the said steel.
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