Alloy Steel - Forged Alloy Steel Fabrication

As an open die forging company, Anderson Shumaker produces steel in a variety of shapes including rolled rings, discs, flat and round bars as well as custom shapes.

Alloy steel is the most commonly used metal for forging. This is because forged alloy steel is known for being stronger, more wear resistant and tougher compared to carbon steel forgings. Alloy steel is considered to be iron-based alloys that has been alloyed or mixed with a variety of elements in the range of 1.00 – up to 50.0% to enhance the physical properties. The combination of alloys and elements forged together is what determines the phyical strengths and properties of the metal. Common alloys added are chromium, molybdenum, manganese, nickel, vanadium boron and silicon.To achieve these properties of increased stregnth, resistance and toughness, alloy steel forging is typically done by heat treatment, also known as hot forging. Anderson Shumaker maintains an extensive inventory of alloy steel.

Our most popular open die alloy steels to forge include 4130, 4140, 4330, 4340, 8620, 8630, 9310, Nitralloy 135, F11, F22, and F91.

These are some basic alloying descriptions:

  • Adding manganese, silicon, nickel and copper to the alloys results in an increase in strength by forming solid solutions in ferrite which is ideal for extreme heat exposure.
  • Chromium, vanadium, molybdenum and tungsten increase strength by forming second phase carbides.
  • Nickel and copper improve corrosion resistance.
  • Molybdenum helps to resist embrittlement.

There are many alloy steels and elements to choose to forge at Anderson Shumaker. Forged alloy steel is used in many applications such as aerospace and special machinery. A good rule of thumb is to keep in mind that the industry dictates what alloying may be necessary to achieve desired properties, along with proper heat treatment of parts.

Alloy Steel Forging Photos