Inconel 625 VS INCONEL 601
What is the difference between Inconel 625 and INCONEL 601?
Inconel 601 has a melting point of 2467°F (1350°C), while Inconel 625 has a melting point of 2375°F (1310°C). In terms of room temperature tensile strength, Inconel 601 has a tensile strength of 590-930 MPa, while 625 has a slightly higher tensile strength of 690-895 MPa.
What are the benefits of Inconel 625?
In addition to high tensile strength, INCONEL 625 also has high creep strength, high rupture strength and excellent weldability. These properties make it suitable for aerospace applications, including duct and exhaust systems, turbine shrouds and seals, and thrust reverser systems.


What is Inconel 601 material?
INCONEL 601 alloy is a nickel-based alloy with a high chromium content (approximately 25wt%) and the addition of aluminum, designed for use in heat treatment of metals and materials to resist high temperature oxidizing atmospheres.
Is Inconel 601 alloy magnetic?
Characteristics of Inconel 601 alloy: high corrosion resistance, high oxidation resistance, high strength and weldability, resistance to chloride ion stress corrosion cracking, non-magnetic, and ideal applicability over a wide temperature range.

What factors should be considered when choosing between Inconel 601 and Inconel 625?
When choosing between Inconel 601 and Inconel 625, several factors should be considered:
Chemical Composition: Inconel 601 contains more chromium and aluminum, providing excellent oxidation resistance at high temperatures. Inconel 625 includes molybdenum and niobium, enhancing its corrosion resistance and strength.
Mechanical Properties: Inconel 601 offers high mechanical strength and durability, especially at elevated temperatures, making it suitable for applications like furnace components. Inconel 625 boasts superior tensile and fatigue strength, beneficial for environments requiring both high strength and corrosion resistance.
Temperature Resistance: Inconel 601 performs well at very high temperatures up to 2200°F (1200°C), while Inconel 625 is versatile, maintaining its properties from cryogenic levels up to 1800°F (982°C).
Corrosion Resistance: Inconel 625 excels in harsh chemical environments due to its molybdenum content, which provides excellent resistance to pitting and crevice corrosion. Inconel 601, although good at oxidation resistance, does not match the comprehensive corrosion resistance of Inconel 625.
Application Needs: Inconel 601 is ideal for high-temperature applications requiring mechanical strength and oxidation resistance, such as in chemical processing and heat treating. Inconel 625 is preferred for its superior corrosion resistance in industries like chemical processing, nuclear power, and oil and gas.
Gnee Steel is a supplier of Nickel Alloy 625 and Inconel 625 in tubes, pipes, plates, strips, plates, round bars, flat bars, forged billets, hexagons, wire and extrusions. We work with steel mills to provide our customers with 625 alloy that meets or exceeds many leading industry standards including ASTM, ASME, SAE, AMS, ISO, DIN, EN and BS.
Gnee Steel stocks and sells Nickel Alloy 625 and Inconel 625 tubes, pipes, plates, strips, plates, round bars, flat bars, forged billets, hexagons, wire and extrusions.





