How is 4140 Steel Formed?
The major alloys of 4140 steel are carbon and iron. Apart from these two, there are other elements that are added. These are manganese, chromium, and molybdenum.
These elements are placed in an electric furnace or even in an oxygen furnace. They turn into a molten state and combine to form one solid metal. The hot steel is allowed to cool. (4140 Steel Formed)
How is 4140 Steel Annealed Hardened and Tampered?
Before 4140 steel is ready for use, it is usually subjected to these three processes; annealing hardening, and tampering. The purpose of these processes is to enhance the physical and mechanical properties of this steel.
4140 steel is annealed at 872°C which is equivalent to 1600°F. After that, the steel is cooled in a furnace.
On the other hand, 4140 steel has been tampered with at temperatures between 200°C and 650°C. The temperature is adjusted depending on the desired level of hardness.
What are the Mechanical Properties of 4140 Steel?
The presence of chromium and molybdenum tends to give 4140 steel some extra mechanical advantages over ordinary steel. It is harder than regular steel.
One of the most outstanding properties of this metal is its high tensile strength. The tensile strength of this metal can be as high as 95,000 PSI. This means that this metal cannot break easily even when subjected to some kind of heavy load.
Another mechanical property of 4140 steel is excellent ductility. This type of steel can be easily drawn into a wire and stretched to form different products.
