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Alloy Steel Forging
Alloy steel forgings are stronger, more wear resistant and tougher compared to carbon steel forgings. Alloy steel is steel that has been alloyed with a variety of elements in the range of 1.00 – up to 50.0% to enhance the physical properties. Common alloys added are chromium, molybdenum, manganese, nickel, vanadium boron and silicon.
Alloy steel will have better strength; wear resistance and toughness compared to carbon steel; requiring heat treatment to achieve these properties.
Alloy Steel 4130, 4140, 4330, 4340, 8620, 8630, 9310, Nitralloy 135, F11, F22, F91 are some of our more common alloys.
These are some basic alloying descriptions:
By adding manganese, silicon, nickel and copper are added to increase strength by forming solid solutions in ferrite. 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 to choose from, applications dictate what alloying may be necessary to achieve desired properties, along with proper heat treatment of parts.
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