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Keywords: alloy 31
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Proceedings Papers

Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2372
... and alloy 31 have been exposed to circulating (flow rate 4 L/min) supercritical impure CO 2 for one week at 60 °C and 10 MPa Surface analysis and weight loss experiments in order to determine the corrosion products and the corrosion rates showed that the impurities cause corrosion problems. Slight general...
Proceedings Papers

Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2427
... ABSTRACT Corrosion resistance of duplex stainless steel UNS S32101 and super austenitic stainless steel UNS NO8031 (alloy 31) was investigated in crevice conditions in a corrosive environment (saline brine, T = 60 °C, CO 2 -flow rate 3 – 5 L/h, normal pressure) using electrochemical...
Proceedings Papers

Paper presented at the CORROSION 2013, March 17–21, 2013
Paper Number: NACE-2013-2228
... temperature according to ASTM G 48 - Method C and corrosion data from other lab measurements are presented as well as phase calculations for sigma phase formation compared to practical experiences. metals & mining riser corrosion alloy 31plus flowline corrosion Subsurface Corrosion alloy 31...
Proceedings Papers

Paper presented at the CORROSION 2010, March 14–18, 2010
Paper Number: NACE-10199
... and less costly weld overlay materials are more than sufficient. Alloy 31 (UNS N08031), with 31%Ni-28%Cr- 6.5%Mo, has been tested in both the laboratory and in the field with corrosion resistance approaching that of UNS N06625 in many cases and is significantly less expensive than UNS N06625. A comparison...
Proceedings Papers

Paper presented at the CORROSION 2010, March 14–18, 2010
Paper Number: NACE-10262
... the corrosion resistance also. For the present paper, different Nickel alloys as Alloy 625 (UNS N06625), Alloy 59 (UNS N06059), Alloy 22 (UNS N06022), Alloy 825 (UNS N08825) and one Special Stainless Steel (Alloy 31 UNS N08031) are overlay welded in 1 to 3 layers on carbon steel. The dilution is measured...
Proceedings Papers

Paper presented at the CORROSION 2010, March 14–18, 2010
Paper Number: NACE-10391
... life because each of these parameters accelerates seawater crevice corrosion. Corrosion Inhibition materials and corrosion flowline corrosion oilfield chemistry metals & mining Production Chemistry Upstream Oil & Gas alloy 31 well integrity plate heat exchanger natural seawater...
Proceedings Papers

Paper presented at the CORROSION 2010, March 14–18, 2010
Paper Number: NACE-10338
... traditional materials such as alloy UNS N08825. Alloy 31 (EN 1.4562 / UNS N08031) is an advanced material within this group, characterized by lower content of nickel in order to save on cost of raw materials. Alloy 31 has been qualified for handling of sulphuric acid and for the production of phosphoric acid...
Proceedings Papers

Paper presented at the CORROSION 2010, March 14–18, 2010
Paper Number: NACE-10340
... ABSTRACT Alloy 31 (UNS N08031, X1NiCrMoCu32-28-7) is a superaustenitic iron-nickel-chromium-molybdenum alloy with nitrogen addition filling the gap between existing stainless steels and nickel alloys. Alloy 59 (UNS N06059, NiCr23Mo16Al) with a high chromium, molybdenum and nickel content...
Proceedings Papers

Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09369
... steel alloy 31 (UNS N08031), and the nickel alloys 59 (UNS N06059) and B-2 (UNS N10665) to obtain corrosion data in formic acid, acetic acid, phosphoric acid, polyphosphoric acid, p-toluene sulfonic acid and lactic acid at high temperatures up to 300 °C. From the results it was concluded that alloy 59...
Proceedings Papers

Paper presented at the CORROSION 2009, March 22–26, 2009
Paper Number: NACE-09377
... well integrity exposure test specimen materials and corrosion Upstream Oil & Gas corrosion rate Subsurface Corrosion redox potential alloy 59 crevice corrosion flowline corrosion riser corrosion alloy 31 corrosion corrosion resistance free corrosion potential stainless steel...
Proceedings Papers

Paper presented at the CORROSION 2008, March 16–20, 2008
Paper Number: NACE-08085
... Corrosion Inhibition oilfield chemistry H2S management tk-vdm designation flowline corrosion Production Chemistry materials and corrosion Upstream Oil & Gas resistance Pipeline Corrosion riser corrosion alloy 31 nickel alloy stainless steel crevice corrosion corrosion paper...
Proceedings Papers

Paper presented at the CORROSION 2008, March 16–20, 2008
Paper Number: NACE-08180
...Copyright Government work published by NACE International with permission of the author(s). The material presented and the views expressed in this paper are solely those of the author(s) and are not necessarily endorsed by the Association. Printed in the U.S.A. CORROSION RESISTANCE OF ALLOY 31...
Proceedings Papers

Paper presented at the CORROSION 2008, March 16–20, 2008
Paper Number: NACE-08259
... transpassive dissolution alloy 31 crevice attack heat exchanger corrosion potential stainless steel alloy 625 free corrosion potential Copyright ©2008 by NACE International. Requests for permission to publish this manuscript in any form, in part or in whole must be in writing to NACE International...
Proceedings Papers

Paper presented at the CORROSION 2008, March 16–20, 2008
Paper Number: NACE-08189
..., in particular above the boiling point. Therefore, a recent laboratory testing program was started to obtain corrosion data on the 6 % Mo stainless steel alloy 31 (UNS N08031), and the nickel alloys 59 (UNS N06059) and B-2 (UNS N10665) in formic acid, acetic acid, phosphoric acid and p-toluene sulfonic acid...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07215
... conditions described in ASTM G-48 D for multiple crevice washers and electrochemical studies have been performed to examine their suitability for seawater cooled plate-type heat exchangers. The materials tested were the 6%Mo stainless steels alloy 926 (UNS N08926) and alloy 31 (UNS N08031), as well...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07216
... increases the severity of the corrosive environments. This paper presents data, both lab and field, on some of the typical alloys and various components used in this industry to combat the corrosion problems with special emphasis on a newly developed super-austenitic high chromium 6 Mo alloy 31, UNS NO8031...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07186
...) whereas the other belongs to the advanced high Cr 6% Mo alloy family, alloy 31 ( UNS N08031). To fully appreciate the corrosion challenges of the new millennium, one has to learn from the innovations made in the nickel alloy metallurgy of the last century. Nickel and nickel alloys have useful resistance...
Proceedings Papers

Paper presented at the CORROSION 2007, March 11–15, 2007
Paper Number: NACE-07187
... 59 (UNS 06059) and Alloy 31 (UNS 08031) developed in wrought product forms, e. g. sheet, plate, strip and forging, in Germany. Some years ago, a German foundry obtained a license to produce cast versions of these alloys with the obligation to execute extensive testing of corrosion resistance...
Proceedings Papers

Paper presented at the CORROSION 2006, March 12–16, 2006
Paper Number: NACE-06688
... with a polymeric material, an alternative possibility is the application of high-alloyed stainless steels and nickel-based alloys as there are X1NiCrMoCuN25-20-7 (alloy 926, NO8926), X1NiCrMoCu32-28-7 (alloy 31, NO8031) and NiCr23Mo16Al (alloy 59, NO6059). For lack of corrosion test results with welded test...
Proceedings Papers

Paper presented at the CORROSION 2006, March 12–16, 2006
Paper Number: NACE-06221
... severe conditions nickel based alloys are used. Even though material selection has been continuously optimized, sufficient advantage is not being taken from the new, cost-effective 6%-molybdenum alloy 31 (UNS N08031) yet. This high Cr and Mo containing austenitic steel was designed to fill the gap...

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