Corrosion-resistant, cold-formable, machinable, high strength, martensitic stainless steel
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United States of America Patent
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Sep 13, 2011
Grant Date -
Dec 24, 2009
app pub date -
Aug 26, 2009
filing date -
Jul 29, 2005
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Abstract
A corrosion resistant, martensitic steel alloy having very good cold formability is described. The alloy has the following weight percent composition.The balance of the alloy is essentially iron. Nickel and copper are balanced in the alloy such that the ratio Ni/Cu is less than 0.2. A second embodiment of the alloy contains at least about 0.005% sulfur, selenium, or a combination thereof to provide good machinability.
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