Comparison of high speed steel and tungsten carbide

What is tungsten carbide? Tungsten carbide is a chemical compound containing
equal parts of tungsten and carbon atoms. High-speed steel (HSS or HS) is a
subset of tool steels. According to the chemical composition, high-speed steel
can be divided into tungsten and molybdenum steel. According to the cutting
performance, it can also divided into high performance high speed steel and
common high speed steel.

Properties comparison of high speed steel and tungsten carbide:

Tungsten carbide is approximately two times stiffer than high speed steel, with
a Young’s modulus of approximately 550 GPa, and is much denser than steel or titanium.

tungsten carbide

High speed steel must be strengthened by The heat treatment. Under the condition
of quenching, chromium, iron and carbon forming a extremely hard carbide. The
extremely carbide can improve the wear resistance of steel.

high speed steel

Sintered tungsten carbide cutting tools are very abrasion resistant and can also
withstand higher temperatures than standard high speed steel tools. Carbide cutting
surfaces are often used for machining through materials such as carbon steel or
stainless steel, as well as in situations where other tools would wear away, such
as high-quantity production runs.

Application comparison of high speed steel and tungsten carbide:

High speed steel is commonly used in tool bits and cutting tools. It is often used
in power-saw blades and drill bits.  It is superior to the older high-carbon steel
tools used extensively through the 1940s in that it can withstand higher temperatures
without losing its temper (hardness). This property allows HSS to cut faster than
high carbon steel, hence the name high-speed steel.

Tungsten carbide has been applied in numerous important industries including aerospace,
oil and gas, automotive, semiconductor and marine as mining and cutting tools, mould
and die, wear parts, etc., which also has a promising future particularly due to
enabling to resist high temperature and are extremely hard.

In conclusion, the comparison of high speed steel and tungsten carbide are obvious. You
must choose the right one according to your requirement.


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