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Nickel Alloys

What is the difference between Inconel 718 and 725?

Inconel 718 and 725 are both nickel-based alloys developed by Special Metal Corporation and marketed within their family of Inconel grades. However, there is a significant difference in their composition which accounts for a significant difference in their physical properties. Inconel 718 contains 50-55% nickel, 17-21% chromium, 4.7-5.5% niobium, 2.8-3.3% molybdenum plus controlled additions of […]

Nickel Alloys

What is the difference between Alloy 725 and 625?

The difference between Alloy 725 and 625 is small in terms of their composition, but far more significant in terms of their tensile strength. Inconel 725 is a nickel-based grade, primarily alloyed with chromium. It is very similar to the composition of Inconel 625, except that an addition of titanium is made that, when subject […]

Nickel Alloys

How strong is Inconel 625?

Inconel 625 is not considered particularly high strength, especially if compared with other grades within the Inconel family of Special Metal Corporation such as Inconel 718. In bar form, Alloy 625 (UNS N06625, DIN 2.4856) has a minimum yield strength of 50ksi (345MPa) for larger diameter solid bars compared with 120ksi (827MPa) for Alloy 718. […]

Nickel Alloys

What is Inconel 625 used for?

Inconel 625 is used in an incredibly wide array of applications, perhaps more so than any of the other alloys we actively stock. With outstanding corrosion resistance, a wide temperature operating range and ease of fabrication. As Inconel 625 is easily able to withstand local pitting and crevice corrosion attack in seawater, it has found […]

Nickel Alloys

What is Alloy 625 called?

Alloy 625 is more frequently referred to as Inconel 625, where Inconel is a registered trademark of Special Metals Corporation. Alloy 625 is also referenced by the unified numbering system code UNS N06625 and the caption DIN 2.4856. AMS5666 is the aerospace-related specification against which Alloy 625 can also be supplied. Alloy 625 is not […]

Nickel Alloys

What material is Alloy 625?

Alloy 625 is more frequently referred to as Inconel 625, where Inconel is a registered trademark of Special Metals Corporation. Alloy 625 is also referenced by the unified numbering system code UNS N06625 and the caption DIN 2.4856. AMS5666 is the aerospace-related specification against which Alloy 625 can also be supplied. Alloy 625 is not […]

Nickel Alloys

Why is Inconel 718 difficult to machine?

Inconel 718 is a nickel-based alloy, normally supplied in a high-strength specification. Inconel is a trademark of special Metals Corporation. It has been used extensively in machined components but is considered more challenging to machine. Part of this difficulty can be attributed to its high strength, leading to high cutting forces at the tool tip. […]

Nickel Alloys

What is the use of Alloy 718?

Alloy 718 is a high-strength, nickel-based alloy that has been widely used across different market segments for a number of years. These applications seek to exploit its high strength and corrosion resistance, ability to operate at high temperatures and resistance to stress corrosion cracking. Alloy 718 was introduced in the 1960s and initially used in […]

Nickel Alloys

What alloy is 718?

718 is short-hand for a high strength, high performance nickel-based alloy better known as Inconel 718, UNS N07718 or DIN 2.4668. Inconel is a trademark of Special Metals Corporation and is applied to a range of alloys they originally developed which are all nickel-based, primarily alloyed with chromium. Inconel 718 was introduced in the 1960s […]

Nickel Alloys

What is the disadvantage of Monel?

The primary disadvantage of Monel is its cost compared with many other metals. This is due to it being a range of nickel-based alloys, based on up to 67% nickel content. Nickel is one of the most expensive individual elements used in the production of corrosion resistant metals, and its price can also be quite […]

Nickel Alloys

What is Monel material?

Monel is a registered trademark of Special Metals Incorporated and is applied to a group of nickel-based alloys primarily alloyed with copper. The two most widely used Monel grades are Monel 400 and Monel K-500. Nickel and copper readily alloy into each other, allowing a range of different grades to be created. As copper is […]

Nickel Alloys

What is the difference between Inconel and Incoloy?

Inconel and Incoloy are two different families of nickel-based alloys originally developed by special Metals Incorporated (who own the Inconel and Incoloy trademarks). Incoloy grades are nickel-based alloys primarily alloyed with chromium. There are more than ten different grades currently named within the Incoloy family, but the two most widely used Incoloy grades are Incoloy […]

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