Why Choose Open Die Forging?

Before the advent of the incredible metalworking machines we have today, there was free forging or smith forging. A very hot fire, a hammer and anvil, and raw human power were used to force unyielding metal parts into the desired shape. Open die forging – the modern-day equivalent – comes with many benefits.

The Multiple Benefits of Open Die Forging

Open die forging derives its name from the fact that the dies that apply force to the workpiece are not enclosed; hence “open die.” The die may take many forms from flat, concave, convex or round and will shape the billets as force is applied.

Size Matters

When manufacturing large pieces of steel, open die forging can accommodate lengths of 20 plus meters and weights of over 100 metric tons.

Strength and Grain

Besides shaping the metal, open die forging tends to remove air bubbles which reduces porosity, and the grain of the metal is aligned and refined. A reduced probability of voids and a better microstructure makes open die forged steel stronger with better fatigue resistance.


As technology advances, improved techniques allow for the creation of complex shapes as opposed to a flat bar. Rounds and ingots, sleeves, flats, blocks, discs and cylinder shapes can all be achieved through different open die forging methods.

Cost Savings

Closed-die forging required the development of a precision-created die which usually comes at a significant cost. Open die forging will usually need additional machining, but the costs are still lower than that of the closed die.

Do you have a requirement that we can assist with? Whether you require open die forging, closed or impression die, we’re here to assist you. Chat with one of the friendly, professional staff at Steelmor and let us be a part of your journey.