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08484 Low Temperature Stress Corrosion Cracking of Stainless Steels in the Atmosphere in Presence of Chloride Deposits

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Product Number: 51300-08484-SG
ISBN: 08484 2008 CP
Author: Tomas Prosek, Anna Iversen, and Claes Taxen
Publication Date: 2008
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$20.00
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Several cases of ceiling collapses and other failed elements have been reported in indoor swimming pool halls in the last two decades. The collapses were caused by stress corrosion cracking (SCC) of stainless steel fastening elements made of grades UNS S30400, S31600, or similar. It was shown that this phenomenon can occur under specific conditions beneath chloride deposits at temperatures as low as the room temperature. The aim of this study was to assess the application limits of different austenitic and duplex stainless steel grades subject to tensile stress and contaminated with chloride deposits in the atmosphere under non-washing conditions as a function of temperature (20–50 oC), relative humidity (15–70 % RH), and deposit composition. Austenitic stainless steel grades UNS S30400 and S31603 were susceptible to SCC in the presence of magnesium and calcium chlorides at temperatures from 30 oC and at low relative humidity.
Several cases of ceiling collapses and other failed elements have been reported in indoor swimming pool halls in the last two decades. The collapses were caused by stress corrosion cracking (SCC) of stainless steel fastening elements made of grades UNS S30400, S31600, or similar. It was shown that this phenomenon can occur under specific conditions beneath chloride deposits at temperatures as low as the room temperature. The aim of this study was to assess the application limits of different austenitic and duplex stainless steel grades subject to tensile stress and contaminated with chloride deposits in the atmosphere under non-washing conditions as a function of temperature (20–50 oC), relative humidity (15–70 % RH), and deposit composition. Austenitic stainless steel grades UNS S30400 and S31603 were susceptible to SCC in the presence of magnesium and calcium chlorides at temperatures from 30 oC and at low relative humidity.
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