The Corrosion Resistance of Inconel Alloy 600 in High Temperature Phosphate Solutions

CORROSION ◽  
1977 ◽  
Vol 33 (4) ◽  
pp. 130-144 ◽  
Author(s):  
N. PESSALL ◽  
A. B. DUNLAP ◽  
D. W. FELDMAN
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Sodium Phosphate ◽  
Spectroscopic Studies ◽  
Alloy 600 ◽  
Inconel Alloy ◽  
Raman Spectroscopic ◽  
Alloy 800 ◽  
Alloy 690 ◽  
Phosphate Solutions

Abstract A test program is described in which the corrosion resistance of Inconel Alloy 600 and other alloys is evaluated in sodium phosphate solutions at temperatures between 275 and 325 C. For Inconel Alloy 600, a significant increase in corrosion resistance is associated with the increase in phosphate solubility which occurs when the Na/P ratio (r) is reduced from 3.0 to below 2.0. In solutions characterized by 2 > r > 1.35, the corrosion resistance of Inconel Alloy 600 exhibits a minimum value. Inconel Alloy 690 and Incoloy Alloy 800 exhibit similar corrosion behavior. Raman spectroscopic studies of sodium phosphate solutions indicate a conversion at 200 C of Na3PO4 → Na2HPO4, while both Na2HPO4 and NaH2PO4 are stable up to 320 C. The Raman spectra provide the basis for a good correlation between the corrosion resistance of Inconel Alloy 600 and the concentration of HPO4= or H2PO4− species in the high temperature phosphate environments.

INCONEL FILLER METAL 62

Alloy Digest ◽  
1986 ◽  
Vol 35 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Weld Metal ◽  
Oxidation Resistance ◽  
Filler Metal ◽  
Heat Treating ◽  
High Temperature Strength ◽  
Alloy 600 ◽  
Inconel Alloy ◽  
Gas Tungsten Arc

Abstract INCONEL Filler Metal 62 is used for gas-tungsten-arc, gas-metal-arc and oxyacetylene welding of INCONEL alloy 600 in thicknesses up to 2 inch (50 mm). The weld metal is comparable to the base metal in high-temperature strength and oxidation resistance. For material over 2-inch (50-mm) thick, INCONEL Filler Metal 82 is recommended. This datasheet provides information on composition. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-331. Producer or source: Inco Alloys International Inc..

INCONEL ALLOY 693

Alloy Digest ◽  
2003 ◽  
Vol 52 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Heat Treating ◽  
High Temperature Corrosion ◽  
Metal Dusting ◽  
Good Resistance ◽  
Inconel Alloy ◽  
Temperature Performance ◽  
Alloy 690 ◽  
Resistance To Oxidation

Abstract This alloy improves upon the excellent high-temperature corrosion resistance of INCONEL alloy 690 (see Alloy Digest Ni-266, March 1981) through an addition of aluminum. Inconel Alloy 693 is typically 61% Ni, 29% Cr, 3.3% Al, and 0.7% Nb, with the balance being principally iron. By virtue of its contents of chromium and aluminum, alloy 693 offers particularly good resistance to oxidation, carburization, sulfidation, and special resistance to metal dusting. 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 and heat treating. Filing Code: Ni-617. Producer or source: Special Metals Corporation.

INCONEL ALLOY 722

Alloy Digest ◽  
1965 ◽  
Vol 14 (4) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Base Alloy ◽  
High Strength ◽  
Heat Treating ◽  
Age Hardening ◽  
Nickel Base Alloy ◽  
Inconel Alloy ◽  
Temperature Performance ◽  
Nickel Base

Abstract INCONEL Alloy 722, formerly Inconel W alloy, is a high strength, high-temperature nickel-base alloy responding to age hardening heat treatments for maximum properties. 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-100. Producer or source: Huntington Alloy Products Division, An INCO Company.

INCONEL ALLOY 625 LCF

Alloy Digest ◽  
1992 ◽  
Vol 41 (11) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Thermal Fatigue ◽  
Inconel Alloy ◽  
Alloy 625 ◽  
Temperature Performance

Abstract INCONEL Alloy 625LCF is a special alloyed, melted, and processed version of INCONEL alloy 625 (Alloy Digest Ni-121, February 1967) to optimize low-cycle and thermal fatigue up to 1200 deg F (650 deg C). This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming and joining. Filing Code: Ni-416. Producer or source: Inco Alloys International Inc..

INCONEL FILLER METAL 52

Alloy Digest ◽  
1992 ◽  
Vol 41 (9) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Arc Welding ◽  
Filler Metal ◽  
Pressurized Water Reactors ◽  
Pressurized Water ◽  
High Chromium ◽  
Inconel Alloy ◽  
Gas Tungsten Arc ◽  
Alloy 690 ◽  
Water Reactors

Abstract INCONEL FILLER METAL 52 is a high chromium filler metal for gas-metal-arc and gas-tungsten-arc welding of Inconel Alloy 690 (See Alloy Digest Ni-266, March 1981). Higher chromium is beneficial in resisting stress-corrosion cracking in high purity water for pressurized water reactors and for resistance to oxidizing acids. This datasheet provides information on composition and tensile properties. It also includes information on corrosion resistance as well as joining. Filing Code: Ni-412. Producer or source: Inco Alloys International Inc..

INCONEL ALLOY 601

Alloy Digest ◽  
1970 ◽  
Vol 19 (4) ◽  
Keyword(s):  
Solid Solution ◽  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Heat Treating ◽  
Solid Solution Alloy ◽  
Process Industries ◽  
Inconel Alloy ◽  
Nickel Chromium

Abstract INCONEL Alloy 601 is a nickel-chromium solid-solution alloy with excellent high-temperature properties which make it attractive for many application in aerospace and process industries. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness and creep. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Ni-152. Producer or source: Huntington Alloy Products Division, An INCO Company.

INCONEL ALLOY N06230

Alloy Digest ◽  
2009 ◽  
Vol 58 (3) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Elevated Temperatures ◽  
Heat Treating ◽  
Inconel Alloy ◽  
Temperature Performance ◽  
Resistance To Oxidation

Abstract Inconel Alloy N06230 is a Ni-Cr-W alloy with excellent strength and resistance to oxidation at elevated temperatures. This alloy offers good metallurgical stability and is readily fabricated by conventional processes and procedures. This datasheet provides information on composition, physical properties, microstructure, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-667. Producer or source: Special Metals Corporation.

INCONEL ALLOY 671

Alloy Digest ◽  
1972 ◽  
Vol 21 (10) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Surface Treatment ◽  
Heat Treating ◽  
High Temperature Corrosion ◽  
Chromium Alloy ◽  
Inconel Alloy ◽  
Nickel Chromium ◽  
Temperature Performance

Abstract INCONEL ALLOY 671 is a nickel-chromium alloy having excellent resistance to high-temperature corrosion. This datasheet provides information on composition, physical properties, hardness, 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: Ni-180. Producer or source: Huntington Alloy Products Division, An INCO Company.

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