High Speed Steel Mechanical Properties

Over 95 of high speed steels manufactured in the us are.

High speed steel mechanical properties. Tungsten exists mainly in the form of m6c in high speed steel. It also conducts heat at a very low rate. It is easy to overheat control the quenching heating temperature is necessary and the heat treatment protection requirements are strict. Both of these properties enable hss tools to cut faster hence the name high speed and to be used for longer periods.

Wear resistance and other properties of the high speed tool steels. This article on tool steel type t1 will focus on the chemical composition physical mechanical and thermal properties and other designations of t1 tool steels. M2 high speed tool steel is tungsten molybdenum high speed steel with a well balanced carbon composition and high toughness. 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.

It has a great impact on high speed steel wear resistance. The shear modulus can take a value between 80 gpa to 105 gpa depending on its composition. It is also called jis skh51 and din 1 3343 steel. The amount of tungsten or molybdenum is the key.

Tungsten high speed tool steels or group t steels range from t1 to t15 series. Increasing the silicon content from 0 15 to 0 45 gives a slight increase in maximum attainable tempered hardness and has some influence on carbide morphology although. The influence of silicon on high speed tool steel up to about 1 0 o is slight. The chemical composition of t1 tool steels is outlined in the following table.

Molybdenum high speed steels are designated as group m steels according to the aisi classification system. Mechanical properties thermal properties other designations fabrication and heat treatment machinability heat treatment annealing tempering hardening applications. The trs can be from 1700 mpa to 3300 mpa. Parts of m6c dissolves into austenite to improve the hardenability of high speed steel during the high temperature quenching.

It can increase the red hardness of steel and wear resistance in high temperature.