Coated electrode with low fume emission and low hexavalent chromium for welding stainless steels
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United States of America Patent
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Issued Date -
Sep 1, 2005
app pub date -
Feb 28, 2005
filing date -
Mar 1, 2004
priority date (Note) -
Abandoned
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Abstract
A coated electrode for welding stainless steels. The electrode when used for welding, produces a low level of fumes, which in turn contains a low level of hexavalent chromium. The electrode has a central metallic core which is made of steel or stainless steel and which is covered with a covering that contains a lithium based compound. The covering does not contain any sodium or potassium based compounds like aluminosilicates. The covering also contains a lithium containing binder and metallic elements in the form of ferro-alloys or individual metallic elements.
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