How much do you know about the cold drawn steel process? What about the hot rolled steel process? While both consist of melding different types of molten metal together in order to create steel, they are quite different from each other.
In order to pick the right type of steel for your needs – whatever they may be, you need to understand the crucial differences between them. You’ll find that there are numerous advantages to the cold drawn steel process.
Defining the Processes
Before we can get into these three main advantages, we first need to explain what these two processes are. Let’s start with hot rolled steel. This type of steel is formed while it’s very hot. In fact, the metal is practically molten, or liquid, at this stage. That’s why it’s called hot rolled steel. It goes through the rolled shaping process while red hot.
The advantage to this is that the metal is easy to shape, so it goes through fewer steps to create each part. Once the shapes are formed, the metal cools at room temperature. The finished product is much easier to work with once the customers receive it, and there are some advantages to that. However, there are a number of disadvantages as well, including the fact that the steel is not as strong as it could be.
Next, there’s the cold drawn steel process. This is kind of like cold rolled steel, in that both use steel that’s already cooled and has somewhat hardened. The main difference is that the drawn steel is shaped through a die, instead of on rollers (which is where the “rolled” in the hot and cold processes comes from.
This cold drawn steel is shaped much more precisely, as it needs to be worked somewhat until the finished product emerges. Even though this steel is at room temperature, this process can still happen. Also, unlike hot rolled steel, cold drawn steel doesn’t change shape as it cools. This makes the final product much more stable.
So, what are the advantages of the cold drawn steel process? We mentioned one of them already – the final product is very stable. There are three other main advantages as well. They are:
1) The Surface Finish is Nicer
Since cold drawn steel is shaped in a very precise way, the surface finish is much nicer. The ends can be tapered appropriately, and the entire finished product is very buffed and shiny. If you need a steel product that has precise lines and sharp corners, then you’ll want them to be made from cold drawn steel.
The nice finish is due to the fact that the metal is hammered and then rolled (kind of like the “rolled” steels, but in a different manner) in order to shape the parts. This gently buffs the finish, until the end result is quite nice. It’s a bit more sophisticated than the other types of steel.
2) The Tensile Strength is Improved.
Tensile strength is important. This can best be defined as how strong the metal is when tension is placed on it. Material that has little tensile strength (or is weak), can snap under pressure. This isn’t good, especially when the metal is being used as a crucial part in a machine or even in an automotive.
Hot rolled steel has a weak tensile strength because it is shaped when it’s hot and then allowed to cool. By letting the steel cool before you shape it, you end up with a stronger piece of metal. This is part of what makes cold drawn steel so useful – it’s very strong and sturdy!
3) Longer Parts Can Be Made From Cold Drawn Steel
If you need a metal part that’s extremely long – not overly short – then you’ll need to turn to cold drawn steel. The main difference between this and hot rolled steel is the fact that the “drawing” part, where the steel is pulled into shape, allows for longer parts to be made.
With hot rolled steel, you have limits, unless you manage to find a mold that is large enough for the steel to be poured into. And even if you can do that, you end up with all of the limitations of hot rolled steel. Cold drawn steel clearly has plenty of advantages, and this is just one of them.
Cold drawn steel has many uses, and some of the industries that use this metal include structural components, automotive parts, and more. While hot rolled steel certainly has its uses, if you need something that looks nice, holds up well, and is precisely shaped, then you want to use cold drawn steel. The results will be very strong, they will look nice, and they will work in just the right manner.