![]() The addition of molybdenum adds the great benefit of creating a steel that is slightly more flexible and can better absorb the energy from a shock. ![]() For example, the SCM440 Cr-Mo steel used in our impact sockets contain the following alloys and trace elements: As with chrome vanadium steel, Cr-Mo is mostly made from iron and contains various trace elements however, the alloying elements differ, most notably the addition of molybdenum which gives the steel different properties which will be discussed below. This is also known as chromium molybdenum, chromoly or chrome moly steel. ![]() Many of our tools are made from this steel, such as our slim profile wrenches, chrome sockets, and wobble socket extensions. This does not mean that chrome vanadium is not good, on the contrary, its properties make this metal great for non-power tools such as wrenches and other hand tools since it is very strong, durable, and won’t deform even after many years of daily use. It’s very common to find hand tools and impact sockets in the market made from chrome vanadium steel but chrome vanadium has a breaking point that when reached, can result in shattering and can cause personal injury this is something that can happen if the tool is used under extreme impact loads applications, like if used on an impact driver. The mixture between the metal, carbon, and the rest of the elements are treated to extremely high temperatures and are then forged, creating a chromium vanadium steel with a fine grain structure that gives the resulting material its characteristics of strength and hardness. Chromium vanadium steel is mainly composed of iron, alloyed with several elements including chromium, vanadium, and carbon, and also contains a small number of other trace elements:
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