High Speed Steel Composition Properties And Uses

But it is used widely in the industry due to its great properties.

High speed steel composition properties and uses. And also improve the vanadium content to make its wear resistance get better. All high speed steel chemical composition. This article will provide an overview of m2 molybdenum high speed tool steel which has high carbon content and better wear resistance than m1 molybdenum high speed tool steel. Any steel with a carbon content of 0 55 percent or higher or about one part in 180 is considered high carbon steel.

The influence of silicon on high speed tool steel up to about 1 0 o is slight. The earliest known high speed steels were tungsten based 18 wt w 4 wt cr 1 wt v steel being the best known. Both of these properties enable hss tools to cut faster hence the name high speed and to be used for longer periods. High speed steel hss or hs is a subset of tool steels commonly used as cutting tool material.

Pushing this content past 2 percent makes the result extremely brittle and of limited use although this is how cast iron products e g wood stoves cookware are made. 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 also conducts heat at a very low rate. The use of high speed steels has also gained increasing importance for chipless shaping eg.

Wear resistance and other properties of the high speed tool steels. Different applications have resulted in the development of several variations on this composition with a w content ranging from 22 wt for increased red hardness and a v content up to 5 wt for greater resistance to abrasive wear. Hss chemical composition distinctly differentiates between w mo and w mo alloyed steel grades which contain different amounts of carbon vanadium and cobalt elements to strengthen its own occurrence. And there are so many types of high speed steel due to different chemical composition.

Cw6mo5 cr4v3 it is mo series high speed steel with high carbon and high vanadium. High speed steel is a high carbon tool steel. When used in tools high speed steel operates at a very low thermal expansion rate of 9 7 microns per meter per degree celsius. The lowest alloy grades m50 and m52 high speed steels are properly known as intermediate high speed steels because of their lower alloy contents.

For extrusion blanking and punching tools. To qualify as a high speed steel the chemical composition must meet certain minimum requirements which are defined in the astm a600 specification for high speed tool steels.