Why is it important to know the composition of the material from which the ripper shank for dozer is made (and not only)?

Information on the composition of the alloy of steel is very important for understanding the consumer properties of the product as a dozer’s and grader’s ripper shank, as well as blades, teeth, segments. The presence of alloying elements affects the resource (service life) of wear parts. This information will not be interesting to professionals, but will help other people better navigate as spare parts for dozers, excavators, loaders knowing a little information from the manufacturer (that’s why you should not be afraid to ask the seller questions).
No one can write properties better than a scientist. Further information taken from the work of Dr. Dmitri Kopeliovich.

Alloying is changing chemical composition of steel by adding elements with purpose to improve its properties as compared to the plane carbon steel.

The properties, which may be improved
Stabilizing austenite – increasing the temperature range, in which austenite exists.
The elements, having the same crystal structure as that of austenite (cubic face centered – FCC), raise the A4 point (the temperature of formation of austenite from liquid phase) and decrease the A3 temperature.
These elements are nickel (Ni), manganese (Mn), cobalt (Co) and copper (Cu).
Examples of austenitic steels: austenitic stainless steels, Hadfield steel (1%C, 13%Mn, 1.2%Cr).
Stabilizing ferrite – decreasing the temperature range, in which austenite exists.
The elements, having the same crystal structure as that of ferrite (cubic body centered – BCC), lower the A4 point and increase the A3 temperature.
These elements lower the solubility of carbon in austenite, causing increase of amount of carbides in the steel.
The following elements have ferrite stabilizing effect: chromium (Cr), tungsten (W), Molybdenum (Mo), vanadium (V), aluminum (Al) and silicon (Si).

Examples of ferritic steels: transformer sheets steel (3%Si), F-Cr alloys.
Carbide forming – elements forming hard carbides in steels.
The elements like chromium (Cr), tungsten (W), molybdenum (Mo), vanadium (V), titanium (Ti), niobium (Nb), tantalum (Ta), zirconium (Zr) form hard (often complex) carbides, increasing steel hardness and strength.
Examples of steels containing relatively high concentration of carbides: hot work tool steels, high speed steels.

Carbide forming elements also form nitrides reacting with Nitrogen in steels.
Graphitizing – decreasing stability of carbides, promoting their breaking and formation of free Graphite.
The following elements have graphitizing effect: silicon (Si), nickel (Ni), cobalt (Co), aluminum (Al).
Decrease of the eutectoid concentration.
The following elements lower eutectoid concentration of carbon: titanium (Ti), molybdenum (Mo), tungsten (W), silicon (Si), chromium (Cr), nickel (Ni).
Increase of corrosion resistance.
Aluminum (Al), silicon (Si), and chromium (Cr) form thin an strong oxide film on the steel surface, protecting it from chemical attacks.

Characteristics of alloying elements

Manganese (Mn) – improves hardenability, ductility and wear resistance. Mn eliminates formation of harmful iron sulfides, increasing strength at high temperatures.
Nickel (Ni) – increases strength, impact strength and toughness, impart corrosion resistance in combination with other elements.
Chromium (Cr) – improves hardenability, strength and wear resistance, sharply increases corrosion resistance at high concentrations (> 12%).
Tungsten (W) – increases hardness particularly at elevated temperatures due to stable carbides, refines grain size.
Vanadium (V) – increases strength, hardness, creep resistance and impact resistance due to formation of hard vanadium carbides, limits grain size.
Molybdenum (Mo) – increases hardenability and strength particularly at high temperatures and under dynamic conditions.
Silicon (Si) – improves strength, elasticity, acid resistance and promotes large grain sizes, which cause increasing magnetic permeability.
Titanium (Ti) – improves strength and corrosion resistance, limits austenite grain size.
Cobalt (Co) – improves strength at high temperatures and magnetic permeability.
Zirconium (Zr) – increases strength and limits grain sizes.
Boron (B) – highly effective hardenability agent, improves deformability and machinability.
Copper (Cu) – improves corrosion resistance.
Aluminum (Al) – deoxidizer, limits austenite grains growth.