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By Trunnano | 29 September 2022 | 0 Comments

Inconel 625 Properties

Inconel 625 alloy is a non-magnetic, corrosion-resistant and oxidation-resistant Ni-Cr alloy. The high strength of Inconel 625 is due to the hardening of molybdenum and niobium on the Ni-Cr matrix of the alloy. Inconel 625 is highly resistant to a variety of abnormally severe corrosive environments, including high temperature effects (such as oxidation and Carburizing), including corrosion. Its excellent strength and toughness in the high temperature range from low temperature to up to 2000 °F (1093 °C) mainly comes from the solid solution of refractory metals Co and molybdenum in Ni-Cr matrix. Ni-Cr alloy 625 has excellent resistance to pitting and crevice corrosion, high corrosion fatigue strength, high tensile strength and resistance to stress corrosion cracking to chloride ion-making it an excellent choice for seawater applications. Chromium-nickel-iron alloys are used in aerospace applications and marine applications. Common applications of this alloy are springs, seals, bellows for diving controls, cable connectors, fasteners, flexible devices and oceanographic instrument assemblies.
Inconel625 (UNS N06625) is a nickel base superalloy with excellent oxidation resistance and corrosion resistance. It also has high strength and fatigue properties over a wide temperature range, and can be easily welded and brazed. It is widely used in chemical, nuclear and marine applications. Aerospace applications include fuselage and jet engine components as well as space shuttle mainframe components. Other potential applications include heat exchangers and pressure vessel assemblies for chemical treatment.
Inconel 625 has high content of chromium and molybdenum and excellent corrosion fatigue strength. In addition, IN 625 has moderately high tensile strength, creep resistance and excellent resistance to chloride stress corrosion cracking.
In625 physical properties
Hardness: the maximum 287HB under the condition of annealing heat treatment according to the hardness of AMS 5666.
Density: 0.305 pounds per cubic inch.
The elastic modulus is 29.8 MSI under annealing condition and 30.2 MSI under solid solution heat treatment.
Coefficient of expansion: 7.6x10-6 in/in/F RT-800F. 8.2x10-6 inch / F RT-1200F.
With the correct selection of tools and materials, Inconel 625 can be processed under annealing or solid solution heat treatment conditions. Like other nickel-based superalloys such as Inconel 718, the processing capacity of Inconel 625 is not as good as that of most steels including stainless steel.
In625 has excellent welding ability, especially in combination with gas-tungsten arc (GTA), plasma arc and electron beam welding. Master metal welding fillers are usually used. Welding is usually carried out on annealed or solid solution heat treated materials, and in many cases, appropriate post-weld heat treatment is used to reduce the residual welding shrinkage stress. The strength and ductility in the welding state are good, but the complete post-weld solution annealing heat treatment (1800F) is usually used to obtain the best performance (dimensional stability, fatigue life) of the weldment.
IN 625 is well formed under the condition of annealing or solid solution heat treatment.
Corrosion resistance.
Inco 625 has excellent corrosion resistance and oxidation resistance. It also has good corrosion resistance to sea water, so it is attractive for marine applications.
Heat treatment.
Inconel 625s are usually strengthened by cold working and annealed at temperatures between 1700 and 1900F as needed to eliminate the effects of cold working. Although it is nominally a solid solution alloy containing intergranular and intragranular carbide precipitates, Inconel 625has no reaction to enhanced heat treatment. Almost all the secondary carbides were dissolved in the solid solution heat treatment from 2000 to 2200F. The main effect of short-time annealing of hot-rolled bars with standard components is the decrease of tensile strength and hardness. In general, the most common annealing heat treatment for Inconel 625 is at 1800F.
It is recommended to use Inconel 625 forgings with a maximum starting temperature of 2150F and a minimum finishing temperature of 1850F. Forging at temperatures below 1850F may cause the hammer in the material to crack. The alloy should be reduced in a way that prevents the formation of two-phase grain structure. For free forging, the final maximum reduction is recommended to be 15% to 20%.
Inconel 625 Price
The price is influenced by many factors including the supply and demand in the market, industry trends, economic activity, market sentiment, and unexpected events.
If you are looking for the latest In625 powder price, you can send us your inquiry for a quote. ([email protected])
Inconel 625 Supplier
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted In625 powder manufacturer and In625 powder supplier with over 12-year-experience. We ship our goods all over the world.
If you are looking for high-quality In625 powder, please feel free to contact us and send an inquiry. ([email protected])


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