In industrial projects, the materials chosen are as important as the design. Two common alloys are Inconel 625 and Incoloy 825 alloy. Let’s compare these two materials so you can make an informed decision for your project.
Alloy Inconel 625 and Alloy Incoloy 825 are nickel-based superalloys developed by Special Metals Corporation. Like most superalloys, both materials possess excellent corrosion resistance and high-temperature strength. However, there are some differences between them to be aware of when choosing which alloy to use for your project.
performance:
The main difference between alloy Inconel 625 and alloy Incoloy 825 is the performance at high temperatures. Alloy Inconel 625 has a higher melting point than Alloy Incoloy 825, 2000°F (1093°C) versus 1742°F (950°C). This means that the strength of Inconel 625 alloy at high temperatures lasts longer than that of Incoloy 825 alloy. However, Alloy Incoloy 825 has superior stress rupture strength—the ability to resist cracking under cyclic loads at temperatures up to 1200°F (649°C).
application:
In terms of applications, the two alloys share some similarities, but also some significant differences. Both alloys are used in chemical processing equipment such as heat exchangers, pumps and valves; they are also used in petroleum refining equipment and other industrial components exposed to high temperatures and corrosive environments. However, due to its higher melting point and superior stress rupture strength at high temperatures, alloy Inconel 625 is often used in more demanding applications such as gas turbines and nuclear reactors, while alloy Incoloy 825 is often used in less demanding applications such as exhaust gases Manifolds and chemical processing equipment.
chemical composition:
Alloy Inconel 625 is an austenitic nickel-chromium-molybdenum alloy containing 9% nickel, 22% chromium, 3% molybdenum and small amounts of manganese, silicon, iron and carbon. Alloy Incoloy 825 is an austenitic nickel-iron-chromium alloy containing 38% nickel, 20% iron, 2.5% chromium and small amounts of manganese, silicon, copper and titanium.
Tensile Strength:
One of the most important properties of any material is its tensile strength, which is the material’s ability to resist stretching under force. Alloy Inconel 625 has a tensile strength of 125 ksi (862 MPa), while alloy Incoloy 825 has a tensile strength of 100 ksi (690 MPa).
Yield Strength:
The yield strength of a material is the stress at which it begins to plastically deform. This is important for materials that will be used in structures or other applications that will be subject to loads that may cause them to yield. Alloy Inconel 625 has a yield strength of 95 ksi (655 MPa), while alloy Incoloy 825 has a yield strength of 75 ksi (517 MPa).
Elongation:
Elongation is a measure of a material’s ability to deform before breaking. This property is important for materials that will be subjected to loads that may cause them to deform significantly before breaking. The elongation rate of alloy Inconel 625 is 30%, while the elongation rate of alloy Incoloy 825 is 20%.
density:
The density of a material is the mass per unit volume. This property is important for many applications where weight and/or space are a concern. Alloy Inconel 625 has a density of 0.305 pounds per cubic inch (8.44 grams per cubic centimeter), while alloy Incoloy 825 has a density of 0.292 pounds per cubic inch (8.08 grams per cubic centimeter).
Overall, choosing between Inconel 625 alloy or Incoloy 825 alloy depends on your specific application. If you need higher high temperature strength and more severe application environments, alloy Inconel 625 may be a better choice. If your application is relatively lightweight and requires better corrosion resistance, alloy Incoloy 825 may be a better choice. Of course, you should also consider other factors, such as the cost and availability of materials, to make your final decision.
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.
==========================================
www.antonmetal.com
ANTON METAL｜ Your specialty alloys manufacturer
Email: dominic@antonmetal.com
Phone: +8613132148618(wechat/whatsapp)
Post time: Nov-18-2023
