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07198 Stainless Steel Pitting in Chloride-Sulfate Solutions - The Role of Cations

Picture for 07198 Stainless Steel Pitting in Chloride-Sulfate Solutions - The Role of Cations
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 In this study the pitting behavior of stainless steel type AISI 304 (EN 1.4301) has been studied in various binary mixtures of MgSO4, K2SO4 or Li2SO4 with NaCl. Results are compared to those obtained in binary mixtures of Na2SO4 with NaCl as well as in plain NaCl.

Product Number: 51300-07198-SG
ISBN: 07198 2007 CP
Author: P. Pohjanne, L. Carpen, P. Kinnunen, J. Ramo, A. Sarpola, M. Riihimaki, and T. Hakkarainen
Publication Date: 2007
Industries: Materials Selection and Design , Science of Corrosion
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Chlorides and sulfates are the most important ions while considering the possibility of pitting corrosion of stainless steel. It is generally accepted that the risk of pitting increases with increasing chloride concentration and decreases with increasing sulfate concentration. There are also indications that higher sulfate/chloride ionic ratio is needed to inhibit the pitting corrosion of stainless steels at higher chloride concentrations. However, the role of cations in the pitting event has gained only a little attention. In this study the pitting behavior of stainless steel type AISI 304 (EN 1.4301) has been studied in various binary mixtures of MgSO4, K2SO4 or Li2SO4 with NaCl. Results are compared to those obtained in binary mixtures of Na2SO4 with NaCl as well as in plain NaCl.

Chlorides and sulfates are the most important ions while considering the possibility of pitting corrosion of stainless steel. It is generally accepted that the risk of pitting increases with increasing chloride concentration and decreases with increasing sulfate concentration. There are also indications that higher sulfate/chloride ionic ratio is needed to inhibit the pitting corrosion of stainless steels at higher chloride concentrations. However, the role of cations in the pitting event has gained only a little attention. In this study the pitting behavior of stainless steel type AISI 304 (EN 1.4301) has been studied in various binary mixtures of MgSO4, K2SO4 or Li2SO4 with NaCl. Results are compared to those obtained in binary mixtures of Na2SO4 with NaCl as well as in plain NaCl.

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08174 Unusual Corrosion Failures of Stainless Steel in Low Chloride Waters

Product Number: 51300-08174-SG
ISBN: 08174 2008 CP
Author: Troels Mathiesen and Jan Elkjaer Frantsen
Publication Date: 2008
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Rare corrosion failures of stainless steel are reviewed in the paper. The cases originate from low chloride waters like potable water or fresh water in the temperature range of 15-25°C. Under such conditions full resistance of austenitic stainless steel like AISI 316 is usually expected.
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06497 EFFECT OF WELDING RELATED MICROSTRUCTURE ON STRESS CORROSION CRACKING SUSCEPTIBILITY IN CAUSTIC SOLUTIONS

Product Number: 51300-06497-SG
ISBN: 06497 2006 CP
Author: Ananya Bhattacharya, Preet M Singh, Heikki Leinonen, Jamshad Mahmood
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Stress Corrosion Cracking in the weld and heat affected zones of Duplex Stainless Steels has been experienced in different industries.  In this paper, an attempt has been made to study the various aspects of this type of corrosion, brought about by welding.  Results show duplex stainless steel base metal is also susceptible.
Picture for 07205 Corrosion of Stainless Steel in Sulfamic Acid Cleaning Solutions
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07205 Corrosion of Stainless Steel in Sulfamic Acid Cleaning Solutions

Product Number: 51300-07205-SG
ISBN: 07205 2007 CP
Author: Joseph R. Kish, Neville J. Stead, and Douglas L. Singbeil
Publication Date: 2007
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An investigation was conducted to characterize the corrosion behavior of Type 316L stainless steel (UNS S31603) in a sulphamic acid (NH2HSO3) cleaning solution.
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