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08190 Corrosion Characteristics of a Uniquely Versatile Nickel Alloy

Picture for 08190 Corrosion Characteristics of a Uniquely Versatile Nickel Alloy
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Product Number: 51300-08190-SG
ISBN: 08190 2008 CP
Author: Paul Crook and Nacera Sabrina Meck
Publication Date: 2008
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Of the corrosion-resistant, wrought nickel alloys, those containing significant additions of both chromium and molybdenum are the most versatile. Chromium promotes the passivation of such alloys in the presence of oxygen, and molybdenum ennobles the alloys under active corrosion conditions. Major attributes of these Ni-Cr-Mo alloys include high resistance to hydrochloric and sulfuric acids, and outstanding resistance to chloride-induced localized attack. Despite their versatility, there is a need within the chemical process and pharmaceutical industries for materials with even higher resistance to hydrochloric and sulfuric acids. This need is partially satisfied by the binary nickelmolybdenum alloys; however, these cannot tolerate even small quantities of dissolved oxygen. This paper describes a new, wrought nickel alloy, much more resistant to hydrochloric and sulfuric acids than the Ni-Cr-Mo materials, yet tolerant of dissolved oxygen and other oxidizing species. Furthermore, the alloy is extremely resistant to chloride-induced pitting and crevice attack.
Of the corrosion-resistant, wrought nickel alloys, those containing significant additions of both chromium and molybdenum are the most versatile. Chromium promotes the passivation of such alloys in the presence of oxygen, and molybdenum ennobles the alloys under active corrosion conditions. Major attributes of these Ni-Cr-Mo alloys include high resistance to hydrochloric and sulfuric acids, and outstanding resistance to chloride-induced localized attack. Despite their versatility, there is a need within the chemical process and pharmaceutical industries for materials with even higher resistance to hydrochloric and sulfuric acids. This need is partially satisfied by the binary nickelmolybdenum alloys; however, these cannot tolerate even small quantities of dissolved oxygen. This paper describes a new, wrought nickel alloy, much more resistant to hydrochloric and sulfuric acids than the Ni-Cr-Mo materials, yet tolerant of dissolved oxygen and other oxidizing species. Furthermore, the alloy is extremely resistant to chloride-induced pitting and crevice attack.
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Picture for 08181 Corrosion Performance of a New Age-Hardenable Ni-Cr-Mo Alloy
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08181 Corrosion Performance of a New Age-Hardenable Ni-Cr-Mo Alloy

Product Number: 51300-08181-SG
ISBN: 08181 2008 CP
Author: Nacera Sabrina Meck, Lee M. Pike, and Paul Crook
Publication Date: 2008
$20.00
Picture for 10336 A New Corrosion-Resistant NI-MO-CR Alloy for the Most Versatile Environments
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10336 A New Corrosion-Resistant NI-MO-CR Alloy for the Most Versatile Environments

Product Number: 51300-10336-SG
ISBN: 10336 2010 CP
Author: Nacéra Sabrina Meck, P. Crook and P. E. Manning
Publication Date: 2010
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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.
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