High-Temperature Corrosion of Incoloy Alloy 800 in N2/H2S Gas

2017 ◽  
Vol 864 ◽  
pp. 3-7
Author(s):  
Min Jung Kim ◽  
Dong Bok Lee
Keyword(s):  
Total Pressure ◽  
High Temperature Corrosion ◽  
Nickel Iron ◽  
Corrosion Rates ◽  
Alloy 800 ◽  
Resistance To Oxidation ◽  
Incoloy Alloy ◽  
Inner Scale ◽  
Mixed Gases ◽  
Iron Chromium

The nickel-iron-chromium-based alloy, Incoloy alloy 800, was corroded at 600, 700 and 800 °C for 10-70 h under 1 atm of total pressure in three different atmospheres, viz., 1 atm of N2, N2/H2O, and N2/H2O/H2S-mixed gases. The corrosion rates always increased with addition of H2O and, much more seriously, with the addition of H2S gas. In N2 and N2/H2O gases, oxidation prevailed. In N2/H2O/H2S gases, sulfidation dominated. The corrosion resistance increased in the T22 steel displayed better resistance to oxidation and sulfidation than Fe-2Mn-0.5Si steel, owing to the presence of Cr. Strong enrichment of Cr and the presence of Ni and Fe were noticeable in the inner scale. Chromium sulfidized to FeCr2S4 in N2/H2O/H2S gases, which was responsible for the enhanced sulfidation resistance of T22 compared with Fe-2.0Mn-0.5Si steel.

INCOLOY ALLOY 801

Alloy Digest ◽  
1967 ◽  
Vol 16 (10) ◽  
Keyword(s):  
Heat Treating ◽  
Titanium Content ◽  
Chromium Alloy ◽  
Nickel Iron ◽  
Alloy 800 ◽  
Temperature Performance ◽  
Incoloy Alloy ◽  
Rupture Properties ◽  
Iron Chromium Alloy ◽  
Iron Chromium

Abstract INCOLOY nickel-iron-chromium alloy 801 is a modification of INCOLOY alloy 800. Its nominally 1% titanium content gives it improved tensile and rupture properties. It has excellent oxidation resistance up to 1600-1700 F and can be readily formed and welded. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SS-201. Producer or source: Huntington Alloy Products Division, An INCO Company.

INCOLOY ALLOY 800

Alloy Digest ◽  
1962 ◽  
Vol 11 (9) ◽  
Keyword(s):  
Elevated Temperatures ◽  
Heat Treating ◽  
Chromium Alloy ◽  
Nickel Iron ◽  
International Nickel Company ◽  
Alloy 800 ◽  
Incoloy Alloy ◽  
Corrosion And Oxidation ◽  
Iron Chromium Alloy ◽  
Iron Chromium

Abstract INCOLOY alloy 800 is a nickel-iron-chromium alloy offering good strength along with good resistance to corrosion and oxidation at elevated temperatures. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and compressive strength as well as fracture toughness, creep, and fatigue. It also includes information on high temperature performance as well as heat treating, machining, joining, and surface treatment. Filing Code: SS-136. Producer or source: International Nickel Company Inc..

INCOLOY ALLOY 803

Alloy Digest ◽  
1993 ◽  
Vol 42 (12) ◽  
Keyword(s):  
High Temperature ◽  
High Temperature Corrosion ◽  
Chromium Alloy ◽  
Corrosion Resistant ◽  
Nickel Iron ◽  
High Severity ◽  
Temperature Performance ◽  
Incoloy Alloy ◽  
Iron Chromium Alloy ◽  
Iron Chromium

Abstract INCOLOY alloy 803 is a high-temperature corrosion-resistant, nickel-iron-chromium alloy, developed by Inco Alloys International for pyrolysis in high-severity ethylene furnaces, and for other petrochemical applications where high levels of oxidation-, carburization-, and/or sulfidation-resistance are important. This datasheet provides information on composition, physical properties, and tensile properties as well as creep. It also includes information on high temperature performance as well as joining. Filing Code: SS-559. Producer or source: Inco Alloys International Inc.

UNS N09706

Alloy Digest ◽  
1989 ◽  
Vol 38 (2) ◽  
Keyword(s):  
High Strength ◽  
Heat Treating ◽  
Chromium Alloy ◽  
Good Resistance ◽  
Nickel Iron ◽  
Temperature Performance ◽  
Resistance To Oxidation ◽  
Oxidation And Corrosion ◽  
Iron Chromium Alloy ◽  
Iron Chromium

Abstract UNS N09706 is a precipitation-hardenable, nickel-iron-chromium alloy with high strength at temperatures to 1200 F and with good resistance to oxidation and corrosion over a broad range of temperatures and environments. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-368. Producer or source: Nickel and nickel alloy producers.

NIPPON YAKIN NAS 800

Alloy Digest ◽  
2021 ◽  
Vol 70 (7) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Strength ◽  
Heat Treating ◽  
Chromium Alloy ◽  
Nickel Iron ◽  
Excellent Corrosion Resistance ◽  
Resistance To Oxidation ◽  
Aqueous Environments ◽  
Iron Chromium Alloy ◽  
Iron Chromium

Abstract Nippon Yakin NAS 800 is an austenitic nickel-iron-chromium alloy that exhibits high strength and excellent resistance to oxidation and carburization at high temperatures. It also offers excellent corrosion resistance in many aqueous environments. It is normally employed in service temperatures up to and including 600 °C (1100 °F). This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-773. Producer or source: Nippon Yakin Kogyo Co., Ltd.

INCOLOY ALLOY 925

Alloy Digest ◽  
1984 ◽  
Vol 33 (5) ◽  
Keyword(s):  
High Strength ◽  
Heat Treating ◽  
General Corrosion ◽  
Chromium Alloy ◽  
Gas Wells ◽  
Nickel Iron ◽  
Incoloy Alloy ◽  
Iron Chromium Alloy ◽  
Sour Gas ◽  
Iron Chromium

Abstract INCOLOY Alloy 925 is an age-hardenable nickel-iron-chromium alloy. It provides high strength at temperatures up to 1000 F (540 C). It was developed for use in oil-production tubular products, tool joints, and equipment for surface and down-hole hardware for intermediate sour-gas wells. It is recommended for a number of other applications where resistance to general corrosion and pitting are required. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-297. Producer or source: Huntington Alloys Inc..

INCONEL ALLOY 706

Alloy Digest ◽  
1970 ◽  
Vol 19 (11) ◽  
Keyword(s):  
High Strength ◽  
Heat Treating ◽  
Chromium Alloy ◽  
Good Resistance ◽  
Inconel Alloy ◽  
Nickel Iron ◽  
Resistance To Oxidation ◽  
Oxidation And Corrosion ◽  
Iron Chromium Alloy ◽  
Iron Chromium

Abstract INCONEL Alloy 706 is a precipitation-hardenable, nickel-iron-chromium alloy with high strength at temperatures to 1300 F and with good resistance to oxidation and corrosion over a broad range of temperatures and environments. Its characteristics are similar to those of INCONEL Alloy 718, except that Alloy 706 has greatly improved machinability. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as creep and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-159. Producer or source: Huntington Alloy Products Division, An INCO Company.

NI-SPAN-C Alloy 902

Alloy Digest ◽  
1968 ◽  
Vol 17 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Cold Work ◽  
Temperature Fluctuations ◽  
Heat Treating ◽  
Chromium Alloy ◽  
Constant Modulus ◽  
Nickel Iron ◽  
Iron Chromium Alloy ◽  
Iron Chromium

Abstract N1-SPAN-C alloy 902 is an age-hardenable, nickel-iron-chromium alloy. Its outstanding characteristic is a controllable thermoelastic coefficient. Proper combination of cold work and thermal treatment can produce an essentially constant modulus of elasticity from -50 F to +150 F. The alloy is especially suitable for many types of precision equipment where elastic members are subject to temperature fluctuations. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness and fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Fe-32. Producer or source: Huntington Alloy Products Division, An INCO Company.

INCO ALLOY 330

Alloy Digest ◽  
1992 ◽  
Vol 41 (5) ◽  
Keyword(s):  
Heat Treatment ◽  
Solid Solution ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Heat Treating ◽  
High Temperature Alloy ◽  
Nickel Iron ◽  
Temperature Performance ◽  
Inco Alloy ◽  
Iron Chromium

Abstract INCO ALLOY 330 is a nickel/iron/chromium austenitic alloy, not hardenable by heat treatment. It is a solid solution strengthened high-temperature alloy. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-403. Producer or source: Inco Alloys International Inc..

INCOLOY ALLOY 890

Alloy Digest ◽  
2003 ◽  
Vol 52 (8) ◽  
Keyword(s):  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Heat Treating ◽  
High Temperature Corrosion ◽  
Temperature Performance ◽  
Incoloy Alloy

Abstract Alloy 890 provides improved properties over those of Incoloy alloys 800HT and 803 via the addition of silicon and molybdenum to optimize the performance of the alloy. Alloy 890 is typically 43% Ni, 25% Cr, 1.85 Si, 1.5% Mo, and 0.45% Nb, with the balance being principally iron. The alloy offers a significant improvement in resistance to high-temperature corrosion. This datasheet provides information on composition, physical properties, and tensile properties as well as creep. It also includes information on high temperature performance as well as forming, heat treating, and joining. Filing Code: Ni-611. Producer or source: Special Metals Corporation.

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