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51316-7680-Materials Selection for Use in Hydrochloric Acid

Picture for Materials Selection for Use in Hydrochloric Acid
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Product Number: 51316-7680-SG
ISBN: 7680 2016 CP
Author: Ajit Mishra
Publication Date: 2016
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Hydrochloric acid (HCl) is an important mineral acid with many uses including the pickling of steel acid treatment of oil wells and chemical cleaning and processing. This acid is extremely corrosive and its aggressiveness can change drastically depending on its concentration the temperature and contamination by oxidizing impurities. One of the most commonly encountered oxidizing impurities is the ferric ion. In general stainless steels and copper alloys cannot tolerate aggressive HCl solutions hence the need to use corrosion-resistant nickel-based alloys.A part of this study focused on the role of alloying elements on the corrosion performance of commercial nickel-based alloys (C-4 (UNS N06455) C-276 (UNS N10276) C-22 (UNS N06022) C-22HS (UNS N07022) C-2000 (UNS N06200) Hybrid-BC1 (UNS N10362) and B-3 (UNS N10675)) in the HCl solutions with and without the presence of oxidizing impurities. Aggressive HCl solutions can also be used to simulate the critical crevice solution. Therefore another aspect of this research is to investigate the localized corrosion performance of these corrosion-resistant nickel-based alloys in chloride solutions in a crevice set-up and to evaluate the role of alloying elements in crevice corrosion inhibition. In the present study various standard corrosion test methodologies conservative electrochemical techniques and a range of surface analytical tools have been utilized.
Hydrochloric acid (HCl) is an important mineral acid with many uses including the pickling of steel acid treatment of oil wells and chemical cleaning and processing. This acid is extremely corrosive and its aggressiveness can change drastically depending on its concentration the temperature and contamination by oxidizing impurities. One of the most commonly encountered oxidizing impurities is the ferric ion. In general stainless steels and copper alloys cannot tolerate aggressive HCl solutions hence the need to use corrosion-resistant nickel-based alloys.A part of this study focused on the role of alloying elements on the corrosion performance of commercial nickel-based alloys (C-4 (UNS N06455) C-276 (UNS N10276) C-22 (UNS N06022) C-22HS (UNS N07022) C-2000 (UNS N06200) Hybrid-BC1 (UNS N10362) and B-3 (UNS N10675)) in the HCl solutions with and without the presence of oxidizing impurities. Aggressive HCl solutions can also be used to simulate the critical crevice solution. Therefore another aspect of this research is to investigate the localized corrosion performance of these corrosion-resistant nickel-based alloys in chloride solutions in a crevice set-up and to evaluate the role of alloying elements in crevice corrosion inhibition. In the present study various standard corrosion test methodologies conservative electrochemical techniques and a range of surface analytical tools have been utilized.
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Picture for The Performance of Corrosion Resistant Ni-Cr-Mo Alloys in Concentrated Hydrochloric Acid
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51317--9639-The Performance of Corrosion Resistant Ni-Cr-Mo Alloys in Concentrated Hydrochloric Acid

Product Number: 51317--9639-SG
ISBN: 9639 2017 CP
Author: Suresh Divi
Publication Date: 2017
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This paper is to study the corrosion performance of various Ni based alloys in high concentrations of HCl acids below the boiling point. Nickel-based alloys C-276 (UNS N10276), C-22 (UNS N06022), C-2000 (UNS N06200), Hybrid-BC1 (UNS N10362) and B-3 (UNS N10675) were investigated.

 
Picture for SUMMARY OF SOME NICKEL ALLOYS USED IN CHEMICAL PRODUCTION INVOLVING HYDROCHLORIC AND SULFURIC ACIDS
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51312-01443-SUMMARY OF SOME NICKEL ALLOYS USED IN CHEMICAL PRODUCTION INVOLVING HYDROCHLORIC AND SULFURIC ACIDS

Product Number: 51312-01443-SG
ISBN: 01443 2012 CP
Author: Larry D. Paul
Publication Date: 2012
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Sulfuric and hydrochloric acids are among the most common chemicals produced.in the process industry.  Nickel alloys have been a traditional material of choice. This paper will review the alloys available for this service as well as identify the temperature limits and other conditions that should be considered when selecting an alloy.
Picture for 04233 Alloy Selection for Dilute and Medium
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04233 Alloy Selection for Dilute and Medium Concentration Sulfuric Acid

Product Number: 51300-04233-SG
ISBN: 04233 2004 CP
Author: Ulrich Brill and Helena Alves, ThyssenKrupp VDM GmbH
Publication Date: 2004
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Sulfuric acid is one of the most important elementary substances of the chemical industry.  There is no stainless steel or even a nickel base alloy available which is suitable over the entire concentration range.  This paper will give corrosion data in up to 75 % sulfuric acid at boiling temperature for various commercial grades as well as for some new developmental alloys.
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