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Exploring the Strength and Versatility: A Comparative Analysis of Incoloy 825 and Inconel 625

When it comes to high-performance nickel-based alloys, Incoloy 825 and Inconel 625 are two popular choices known for their exceptional properties in various industrial applications. Let’s delve deeper into the comparison of these two alloys across different aspects.

Chemical Composition:

  • Incoloy 825: It is a nickel-iron-chromium alloy with added elements of molybdenum, copper, and titanium. The chemical composition typically includes Ni (38-46%), Fe (22% min), Cr (19.5-23.5%), Mo (2.5-3.5%), Cu (1.5-3%), and Ti (0.6-1.2%).
  • Inconel 625: This alloy is a nickel-chromium-molybdenum alloy with niobium added. The chemical composition comprises Ni (58% min), Cr (20-23%), Mo (8-10%), Fe (5% max), Nb (3.15-4.15%), and a trace amount of other elements.

Mechanical Properties:

  • Incoloy 825: It offers excellent corrosion resistance in various environments, high tensile strength, good thermal stability, and resistance to reducing and oxidizing acids. It has a high impact strength and works well in both low and high-temperature applications.
  • Inconel 625: Known for its exceptional strength and toughness, with excellent fatigue strength, creep resistance, and good oxidation resistance at elevated temperatures. It also offers superb resistance to a wide range of corrosive environments.


  • Incoloy 825: Commonly used in chemical processing, pollution control, oil and gas industries, and marine engineering for components like heat exchangers, piping systems, and sour gas wells.
  • Inconel 625: Widely applied in aerospace, marine engineering, chemical processing, and nuclear reactors for turbine components, seawater applications, chemical plant equipment, and high-temperature fasteners.


  • In general, Inconel 625 tends to be more expensive than Incoloy 825 due to its higher nickel content and superior mechanical properties. The specific cost difference may vary based on market conditions and supplier pricing.

In conclusion, both Incoloy 825 and Inconel 625 stand out in their unique ways, catering to different industrial needs with their distinctive properties. While Incoloy 825 excels in corrosion resistance and cost-effectiveness, Inconel 625 shines in high-temperature and high-stress applications. The choice between the two will ultimately depend on the specific requirements of the project at hand.

in conclusion
In conclusion, choosing between Incoloy 800 and Inconel 625 depends on your specific requirements, budget and conditions. If you need a material that can withstand high temperatures, oxidation and carburization, Incoloy 800 may be the right choice for you. If you need a material that can resist corrosion in corrosive environments such as seawater, acids, and chloride solutions, Inconel 625 may be a better choice. Ultimately, it is critical to consult with a materials expert or supplier who can recommend the materials best suited for your industrial application based on your needs and specifications.

Tianjin Anton Metal Manufacture Co., Ltd. is a company specializing in the production of various nickel-based alloys, Hastelloy alloys and high-temperature alloy materials. The company was established in 1989 with a registered capital of 10.0 million, specializing in the production and sales of alloy materials. Anton Metal’s products are widely used in aerospace, chemical industry, electric power, automobile, nuclear energy and other fields, and can also provide customized alloy material solutions according to customer needs. If you need to know the price consultation of alloy materials or provide customized alloy material solutions, please feel free to contact the sales staff.

ANTON METAL| Your specialty alloys manufacturer
Email: dominic@antonmetal.com
Phone: +8613132148618(wechat/whatsapp)

Post time: Apr-01-2024