1989
DOI: 10.1002/maco.19890400703
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Ein neuer hochlegierter Nickel‐Chrom‐Molybdän‐Stahl für den Chemie‐Apparatebau

Abstract: Ein neuer austenitischer Nickel‐Chrom‐Molybdän‐Stahl (Nicrofer 3127 hMo) verbindet die Vorzüge hochchromhaltiger Werkstoffe, nämlich hervorragende Korrosionsbeständigkeit in oxidierenden Medien, mit einem Molybdängehalt von mehr als 6%. Zugleich liegt der Werkstoff im Nickelgehalt vergleichsweise niedrig. Damit konnte unter Einsatz von nur verhältnismäßig wenig teuren Legierungselementen ein hochkorrosionsbeständiger Werkstoff geschaffen werden. Der neue Werkstoff zeigt in wäßrigen neutralen und sauren Medien … Show more

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Cited by 11 publications
(3 citation statements)
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“…Ferritic-austenitic duplex stainless steel (2205) and super duplex stainless steel (2507) are promising alloys that exhibit good corrosion resistance in deep gas wells with high partial pressure of CO 2 , high concentration of chloride, but show limited resistance to SCC in the presence of H 2 S. [28,[92][93][94][95][96][97][98][99] There appear to be risks of SCC of 22Cr duplex stainless steel (21.4Cr-5.3Ni-2.78Mo) in saline sour gas environments. As shown in Figure 3, the critical H 2 S partial pressure was approximately 0.3 bar at 150-250°C, the elongation ratio was decreased remarkably beyond this value.…”
Section: Duplex Stainless Steelsmentioning
confidence: 99%
See 1 more Smart Citation
“…Ferritic-austenitic duplex stainless steel (2205) and super duplex stainless steel (2507) are promising alloys that exhibit good corrosion resistance in deep gas wells with high partial pressure of CO 2 , high concentration of chloride, but show limited resistance to SCC in the presence of H 2 S. [28,[92][93][94][95][96][97][98][99] There appear to be risks of SCC of 22Cr duplex stainless steel (21.4Cr-5.3Ni-2.78Mo) in saline sour gas environments. As shown in Figure 3, the critical H 2 S partial pressure was approximately 0.3 bar at 150-250°C, the elongation ratio was decreased remarkably beyond this value.…”
Section: Duplex Stainless Steelsmentioning
confidence: 99%
“…Ferritic–austenitic duplex stainless steel (2205) and super duplex stainless steel (2507) are promising alloys that exhibit good corrosion resistance in deep gas wells with high partial pressure of CO 2 , high concentration of chloride, but show limited resistance to SCC in the presence of H 2 S. [ 28,92–99 ]…”
Section: Slow Strain Rate Testingmentioning
confidence: 99%
“…Er ist damit formal gesehen so eben noch ein hochlegierter Stahl und keine Nickellegierung. Zu dem u Èberraschenden Verhalten geho Èrt auch, dass der Molybda Èngehalt bei diesem Stahl die Korrosionsbesta Èndigkeit in oxidierenden Medien nicht beeintra Èchtigt [28]. Abb.…”
Section: Superferriteunclassified