inconel alloy 625 strips vs. inconel alloy 718 strips

Inconel Alloy 625 Strips Vs. Inconel Alloy 718 Strips

There are several different types of nickel based strips currently available in the market.

The inconel alloy 625 strips and the inconel alloy 718 strips are some of the two most popular super alloy strips in the market.

These two Inconel alloys strips are mainly used in products that are in need of strong resistance to corrosion, high resistance to temperature and high strength.

It is important that you get to understand the main differences between the the inconel alloy 625 strips and the inconel alloy 718 strips to help you make a decision on which alloy suits you’re manufacturing requirements best.

Let’s keep reading.

Inconel alloy 625 strips also referred to as the UNS N06625, W.Nr. 2.4856 refers to strong solution that has been strengthen by the presence on nickel making it have a high resistance to corrosion, great tensile strength, high oxidation and excellent fatigue properties.

Properties of this Inconel alloy 625 strips make it an excellent product for use in the manufacture of chemical equipment’s, aerospace structural parts, and aero-engine parts.

Inconel alloy 625 strips has a density of 8.44 g/cm³.

What Are Inconel Alloy 718 Strips?

Inconel alloy 718 strips also referred to as UNS N07718, W.Nr. 2.4668 refers to a nickel super alloy well known for its high corrosion resistance, great strength, and can tolerate temperatures of between -423°F to 1300°F.

It has a yield strength that is at most 650 ℃ making it among the top deformed super alloys in the market.

This Inconel alloy also has a good oxidation resistance, fatigue resistance and high resistance to corrosion. Its properties make it a perfect alloy for manufacturing different parts of complicated shapes.

It is mainly used in different applications such as in petroleum industry, aerospace, extrusion dies and nuclear energy.

Inconel alloy 718 strip has a density of 8.44 g/cm³.

Inconel Alloy 625 Strips vs. Inconel Alloy 718 Strips Comparison

Despite Inconel alloy 625 strips and the Inconel alloy 718 strips having huge similarities in their properties and elements, there is a slight variation that makes them the useful in different types of applications.

In this section, we will be taking you through the Inconel alloy 625 strips and the Inconel alloy 718 strips differences to make you understand how to differentiate between the two.


There is a major difference between Inconel Alloy 625 Strips and the Inconel Alloy 718 Strips in their chemical composition. These two Inconel strips are nickel alloys but there is a difference in the amount of nickel each strip contains.

The Inconel alloy 625 is mainly nickel based while the Inconel alloy 718 is mainly nickel plus cobalt based. Since Inconel alloy 718 is nickel plus cobalt based, it means that it has higher strength and hardness when compared to Inconel alloy 625. However, Inconel alloy 625 has higher chromium and molybdenum levels which makes have a higher resistance to corrosion.


Both Inconel alloy 718 and Inconel alloy 625 have similar properties. Just like other nickel alloys, Inconel alloy 718 and Inconel alloy 625 are very strong, have high resistance to corrosion and can easily be welded.

The different amount of chemical composition in these two Inconel alloys means they will each display varying properties levels. Despite both being resistant to heat, Inconel 718 does have a high melting point which ranges from 1321 °C to 1393°C. However, the high levels of molybdenum and chromium in Inconel alloy 625 makes it more resistant to corrosion.


Inconel alloy 625 does contain less amount of iron when compared to Inconel 718. This means alloy 625 contains more amounts of chromium, nickel and molybdenum than alloy 718.

Nickel is known to have high resistance to corrosion capability while chromium is considered to be an essential element when it comes to resistance to corrosion. This makes Inconel alloy625 have a high resistance to corrosion than Inconel alloy 718.

Mechanical Behavior

There is a slight difference in the way Inconel 625 and Inconel 718 are strengthened. Since alloy 625 is solution strengthened, majority of the titanium and aluminum in it mixes with the y-austenite making it very strong.

Alloy 718 is precipitation strengthened and titanium and aluminum precipitates leading to y-phrase which helps improve the alloy strength.

What Are The Inconel Alloy 625 Strips And Inconel Alloy 718 Strips Applications?

Both Inconel 718 and 625 alloys are great for a wide range of applications and industries.

Their properties and composition make them perform well in different fields.

Inconel 625 Alloy Strips Applications

Inconel 625 Alloy has a high level resistance against corrosion which makes it very common in the gas and oil industry. 625 alloys are also very popular in the aerospace industry.

Inconel 718 Alloy Strips Applications

Inconel alloy 718 is very popular in the aerospace world. It does have great resistance to heat which makes it great for use in projects that require high temperatures.

Which One Between Inconel Alloy 625 Strip And Inconel Alloy 718 Strips Is Better?

From the comparison of the two Inconel alloys, 718 alloys is considered to be much higher when compared to the 625 alloy purity.

This makes Inconel alloy 718 have a better foundation when you consider the strength.

Inconel alloys 625 contain less amount of iron when compared to alloy 718.

This means alloy 625 has more chromium, nickel and molybdenum making it be more resistant to corrosion than alloy 718.


Understanding Inconel alloy 718 and Inconel alloy 625 differences is important for both manufacturers and engineers.

It is also important to know how each of these alloys responds to operations like roll forming, stamping, and micro-laser welding and deep draw.

At HZW, we have an experienced team that will help you identify the right Inconel alloy strips and stainless steel strips that will work best for your projects.

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