The production of steel requires a lot of different activities and processes, one of which is the addition of nickel to the steel. Nickel adds strength and durability to steel, while also increasing its resistance to corrosion and high temperatures. Nickel can be added to steel in a number of different ways, but one of the most common methods is by adding nickel-based alloys to the steel. These alloys are produced in a process known as nickel-iron fusing, or ironing.
Ironing is a process in which nickel and iron are mixed together in a furnace at temperatures that are typically between 2,600°F (1,434°C) and 3,100°F (1,722°C). This process forms a molten nickel-iron alloy, which is then cooled and solidified. The alloy is then crushed and sieved to ensure uniformity and consistency. This nickel-iron alloy is called ‘nickel-iron shot’ or ‘steel-iron shot’, and is another name for what is commonly referred to as ‘nickel-iron fusing.
Once the nickel-iron shot has been produced, it can be added to the steel in a variety of ways depending on the desired specification. One of the most common methods is by adding it directly to an electric arc furnace, during the melting process. Alternatively, nickel-iron shot can be added to a steel-making converter or ladle, or even directly to an ingot mould or other casting device, depending on the production technique being used.
The amount of nickel-iron shot that is added to the steel will depend on the requirements of the steel, as well as the desired properties. Generally, a lower percentage of nickel is added for low-alloy steels, as these steels require good formability, strength and weldability, without the need for very high temperature strength, corrosion resistance or high temperature strength. For high-alloy steels, a higher percentage of nickel is usually added, as these steels require much higher temperature strength, corrosion resistance or other specific properties due to their intended use.
Once the required amount of nickel-iron shot has been added to the steel and the melting process is complete, the steel is ready to be cast and formed into its desired shape. The final product is then tested to ensure that it meets the required specifications in terms of tensile strength, hardness, and so on.
The production of steel through the addition of nickel is an important process, as it allows for the creation of steels with different properties depending on their intended use. By adding the right amount of nickel-iron shot to steel, metallurgists are able to create steels with the desired properties, making sure that the steel will be able to cope with the demands of its application. As such, nickel-iron fusing is a vital part of steel production.
