SULFUR TREATMENT FOR COPPER ZINC ALLOYS
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United States of America Patent
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Issued Date -
Oct 25, 2012
app pub date -
Nov 22, 2011
filing date -
Apr 25, 2011
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Abstract
Brass components exhibiting excellent resistance to dezincification corrosion and stress corrosion cracking are prepared without, or with a reduced need for, corrosion inhibiting additives by developing a metal-sulfide rich barrier layer at the surfaces of the component. Brass components treated as disclosed exhibit corrosion resistance as determined by standardized testing that yields dezincification penetration less than 200 microns in depth and exhibits no stress corrosion cracking.
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