What is nickel alloy steel?
Nickel alloys, also known as high-performance alloys, are metals that contain nickel in their elemental composition to improve some of their properties and make them more suitable for applications outside of their typical range of applications. Let's take a look at all the information related to nickel alloys, including their uses, different types, and their characteristics and physical properties.
What are nickel alloys?
If one of the main elements of a metal is nickel, it is classified as a nickel alloy. Some types of nickel alloys are even classified as "superalloys" because their resistance to oxidation and creep is so excellent compared to other metals that they can be used at temperatures over half of their melting point. While not all superalloys are nickel alloys, the vast majority are nickel-based alloys. Here is a picture of the applications of nickel alloys:
Nickel alloys, also known as high-performance alloys, are metals that contain nickel in their elemental composition to improve some of their properties and make them more suitable for applications outside of their typical range of applications. Let's take a look at all the information related to nickel alloys, including their uses, different types, and their characteristics and physical properties.
What are nickel alloys?
If the main element of a metal is nickel, it is classified as a nickel alloy. Some types of nickel alloys are even classified as "superalloys" because they resist oxidation and creep so well compared to other metals that they can be used at temperatures over half their melting point. While not all superalloys are nickel alloys, the vast majority are nickel-based alloys. Here's a picture of a nickel alloy in use:
Nickel alloys, also known as high-performance alloys, are metals that have had a certain amount of nickel added to their elemental composition to improve some of their properties, making them more suitable for applications outside of their typical range. Let's learn all about nickel alloys, including their uses, different types, and their characteristics and physical properties.
What are nickel alloys?
If one of a metal's main elements is nickel, it is classified as a nickel alloy. Some types of nickel alloys are even classified as "superalloys" because they resist oxidation and creep so well compared to other metals that they can be used at temperatures over half their melting point. While not all superalloys are nickel alloys, the vast majority are nickel-based alloys. Here's a picture of nickel alloys in use:
Types of Nickel Alloys
There are many types of nickel alloys available in the market today. Here is a list of some of the most common nickel alloys:
| Nickel alloy type | Composition | Characteristics | Common subtypes |
|---|---|---|---|
|
Nickel-Chromium |
Chromium, molybdenum, iron |
Oxidation resistance, high mechanical strength, excellent in high-temperature environments, can be hard to cold form due to its quick work-hardening |
Inconel, 625, 718, and 600 |
|
Nickel-Copper |
Copper (55–91.5%), iron, tin, manganese |
Saltwater corrosion and fouling resistance, high strength, performs well in low-temperature environments (its ductility won't reduce and its strength and hardness can increase), can work harden during cold forming |
Monel 400, R-405, and K-500 |
|
Nickel-Molybdenum |
Either chromium or molybdenum |
Great thermal stability, corrosion- and oxidation-resistance at high temperatures |
Hastelloy, C-22, and C-276 |
|
Nickel-Iron |
Iron, nickel (up to 50%), cobalt, small amounts of silicon |
High ductility, low thermal expansion, corrosion resistance, soft magnetic properties |
Invar |
|
Nickel-Chromium |
High nickel content of around 70% |
Maintain strength in high temperatures, very good corrosion and oxidation resistance, as well as high electrical resistivity, high melting point of over 1300°C |
Nichrome |
|
Nickel-Titanium |
Nickel, titanium |
Great corrosion resistance and mechanical strength. This is a shape memory alloy (SMA) that can be formed into a shape above a certain high temperature (the transition temperature). When it cools, the part can be deformed to a certain extent, but when heated back up to the transition temperature, it will resume its original shape. The transition temperature can be adjusted by changing the alloy's composition |
