The following is the encyclopedia of inconel601 nickel-based alloy provided by Hankai Metal
1.Inconel601 material background
INCONEL601 is a commercial grade of a material developed by SMC Corporation in the United States, which is a high-temperature, corrosion-resistant nickel-chromium-iron alloy with added metal aluminum, and the grade is Alloy UNS N06601 in the ASME standard. One of the outstanding properties of Inconel 601 alloy is its resistance to high temperatures and oxidation, even at temperatures up to 1180, it can still exhibit good oxidation resistance. Due to its high chromium content, the material is suitable for a wide range of corrosive media and high temperature environments, while the addition of aluminium further enhances the oxidation resistance.
2.Inconel601 applications
INCONEL601 material is an austenitic alloy with good high strength and high toughness, which is widely used in various thermal processes, chemical processes, environmental protection and power generation and other fields, such as radiant furnace tubes for oxygen preheaters in titanium dioxide production, insulating tanks used in ammonia modification, catalytic grid supports in nitric acid production equipment, catalytic regenerators and air preheaters in high-density polyethylene production.
3.Inconel601 soldering problems
Nickel-based alloys have shortcomings such as poor thermal conductivity and fluidity, and various solution strengthening elements are added to Inconel601 alloy, which makes it easy to have defects such as welding cracks and microstructure segregation during the welding process. In addition, because Ni and S, P, N, O and other eutectic products are easy to form low melting point, the weld is very easy to produce hot cracks, and the Inconel601 alloy contains elements such as Ti, Nb, Al and other denaturers, which further increase the welding difficulty. As the weakest link of high-temperature corrosion-resistant alloy, welded joints will cause immeasurable losses if they are damaged by corrosion during high-temperature service, resulting in equipment failure. Therefore, it is of great significance to study the welding process of Inconel601 alloy to ensure the performance indicators of welded joints, which is of great significance for the manufacture and use of heat-resistant and corrosion-resistant equipment.
4.Inconel601 welding method
Inconel 601 has good welding properties, and manual tungsten argon arc welding (GTAW) is recommended for optimal corrosion resistance. The power supply polarity is DC positive. The shielding gas is 100% AR with a purity of 9999%。
Wire selection
The welding wire is ERNICRFE-11 produced by SMC in the United States, and the specification is 24。The wire complies with ANSIAWSA514 and asmesfa514.
Bevel preparation
The groove processing should be sheared, high-pressure water cutting or underwater plasma cutting blanking, and the groove should be processed by the planing machine.