Forging Heat Treatment: What Should You Know?

Forging heat treatment is among the robust value-added solutions offered by the provider for steel forgings. This post-treatment modifies the mechanical properties of items to enhance their work efficiency. All steel forgings could be heat treated after forging. Heat treatment is essential in developing desired features, including stress alleviation, grain structural development, and improved mechanical and physical properties during closed die forging. Furthermore, forgings heat treatment can be quenched and tempered to provide the desired final properties. Read more in this blog as we tackle what you should know about forging heat treatment.

What Is Forging Heat Treatment?

Forging is the process of rolling, pressing, and hammering a part to create the appropriate form and hardness for a given use. Forging techniques enhance mechanical properties, enhance intrinsic strength-giving capabilities, increase physical attributes, and provide structural homogeneity free of concealed internal faults. Forging is the most efficient forming method compared to extrusion, welding, and casting because it can attain high strength.

Furthermore, not all aluminium alloys are appropriate for forging heat treatment; however, those can be treated in several ways. A certified provider utilises specialised equipment to offer the rigorous heat management necessary for outstanding results with aluminium alloys.

What Are The Forging Heat Treatment Methods?

Many of the most prevalent forging heat treatment techniques are as follows:

  • Normalising

It entails warming the forging to a specific degree and then allowing it to cool in an environment with no mobility. As a consequence, flexibility has been recovered. Normalised forgings are less expensive than wholly annealed forgings since fully annealing necessitates furnace-controlled cooling.

  • Annealing Procedure

This material could be used in low-carbon steel forgings. The forging is permitted to cool in perfectly calm air after being heated to a cooler temperature than in full annealing or normalising. This changes the particle size in addition to the stream of the forging.

  • Full Annealing

Forging restores the metal’s elasticity, ensuring that the forging keeps a constant amount of softness along its entire length. It should be warmed to a specified temperature before being cooled at regular intervals inside a furnace.

  • Quenching And Tempering

After cooling, the metal forging is warmed at temperatures of 400 to 600°C. Tempering produces a forging with the perfect balance of strength and versatility for its particular application.

  • Spheroidizing

This material is primarily responsible for forgings produced of tool steel, alloy steel, and high-carbon steel. Spheroids are made across the forging structure during the technique, boosting machinability.

What Are The Advantages Of Forging Heat Treatment In Various Industries?

The demand for forging heat treatment is steadily expanding. From gears and pistons to wheel spindles, forged items are used in the aerospace, defence, and maritime industries. Furthermore, heat-treated forgings are suitable for various industrial purposes since they offer strong yet lightweight steel for resource and speed savings. Companies require these features to produce high-quality items, and heat-treated aluminium helps them to do so more cost-effectively.

Other advantages can also include the following:

  • Resistant to corrosion
  • Excellent surface polish
  • High heat transfer
  • Lightweight and low density
  • Freezing ability
  • Excellent strength-to-weight ratio
  • Design adaptability

Forged Steel Threaded Fittings For Forging Heat Treatment

Here are the different types of forged steel threaded fittings used for forging heat treatment.

1. Plug

Plugs are forged steel fittings inserted into the pipe’s tip and come in various head types, including round, square, and hex.

2. Bushings

In forged steel fittings, lowering plug-ins allow for pipe diameter adjustment.

3. Unions

Unions are forged steel fittings that allow for easy engagement. They have three components, which include a male end, a female end, and a nut. They enable the connection and disconnection of two pipe lengths without causing any deformation to the pipes.

4. Couplings

Couplings are forged steel fittings used to connect two lengths of pipe. Half-couplings are inserted into the pipe, with the other end intended to be tightly fitted to the other end of the pipe. Conventional couplings include open receptacles or female threads on both ends, whereas lowering couplings connect small lines to larger ones.

5. Elbows

A pipeline elbow is a forged steel fitting that is fitted between two lengths of pipes or tubes to allow for a direction change, usually at a 45° or 90° angle. Reducing elbows, like lowering tees, changes flow direction while diminishing flow breadth. Moreover, street elbows have a female end that takes pipes and a male end bolt that is the precise size of the pipe, enabling them to be fitted without the requirement for a pipe nipple.

6. Tees

Tees are forged steel connectors used to connect or divide operations. Tees allow for modifications in pipe diameter as well. The two in-line outputs of the tee are the two major exits, whereas the branches are the third. The branch outlet is the descending outlet in a decreasing tee.


Forging heat treatment alters the characteristics of steel forgings, including alloy steel and carbon steel. It is employed at high and low temperatures to stiffen, modify, or adjust various elements of materials with varied crystal structures. The kind of conversion is determined by the temperature at which the metal is heated, the rate at which it is heated, the length of time it is combusted, the temperature at which it is initially cooled, and the rate at which it is cooled—quenching, for instance, firms steel by burning it to high temperatures and then rapidly plunging it in room-temperature salt brine, water, and oil to stop carbon atoms from migrating through the crystalline structure and producing carbides which gets the softness of the metal.