Boronizing powder is one of the main components used in the boronizing process. After placing the work piece in it, the powder creates a layer with uniform hardness at temperatures of around 900° Celsius.Boronizing is applicable to a wide range of tooling applications and thus an essential surface hardening process for most industries. Boronizing powder is not only suitable for steel and other ferrous metals, but is also for alloys based on nickel, titanium and molybdenum and different non-ferrous metals.There are different boronizing techniques, but only paste and pack boronizing with boronizing powder are currently used for commercial purposes. Other techniques include gas boronizing, plasma boronizing, liquid boronizing and fluidized bed boronizing. Whereupon plasma boronizing is considered a sustainable boronizing concept for the future, current liquid and gas boronizing techniques raise concerns regarding serious toxicity problems. Deep case boriding with boronizing powderTreating time, temperature and material are factors that affect the thickness of the boride layer. In order to achieve a perfect result, the metal component has to be placed inside an annealing box packed with boronizing powder. An additional activator starts the diffusion process at around 800° Celsius, boride atoms will now subsequently diffuse into the work piece. The deformation of especially ferrous metals can be reduced to a minimum by heating the furnace up to around 1000° Celsius.The result is a very hard surface with a lot of desirable properties, such as erosion resistance, wear resistance and a low coefficient of friction. One of the huge benefits of boronizing powder is the fact, that it can be used several times. After a boronizing process, they usually take around 3 to 5 hours, it is sufficient to only add 30 to 40% fresh boronizing powder and mix it with the remaining one. This ensures an ideal result even after several boronizing processes. What is the difference between paste and pack boronizing?The boronizing agent, in that case boronizing powder, is a special mixture of different chemical compounds and B4C as an active source. Additionally, SiC is used as inert filler, Na2CO3, Na2B4O7, KBF4, or NaBF4 work as an activator for the whole reaction.The most common methods for industrial purposes, as mentioned before, are pack boronizing with boronizing powder and paste boronizing. The result of either method is a thin boride layer with superior hardness compared to other heat treatments and excellent wear properties. The initial state of the boronaceous medium is the main difference. Boronizing powder, which is incredibly boron-rich, is used during the process of pack boronizing. During paste boronizing on the other hand, a water-based paste is applied by spraying, brushing or dipping.