High speed steel (HSS or HS) is a subset of tool steels, 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. At room temperature, in their generally recommended heat treatment, HSS grades generally display high hardness (above HRC60) and a high abrasion resistance (generally linked to tungsten and vanadium content often used in HSS) compared to common carbon and tool steels.
Read more about High Speed Steel: History, Types, Coatings, Surface Modification, Applications
Famous quotes containing the words high, speed and/or steel:
“No man who acts from a sense of duty ever puts the lesser duty above the greater. No man has the desire and the ability to work on high things, but he has also the ability to build himself a high staging.”
—Henry David Thoreau (1817–1862)
“It was undoubtedly the feeling of exile—that sensation of a void within which never left us, that irrational longing to hark back to the past or else to speed up the march of time, and those keen shafts of memory that stung like fire.”
—Albert Camus (1913–1960)
“Through joy and blindness he shall know,
Not caring much to know, that still
Nor lead nor steel shall reach him,”
—Julian Grenfell (1888–1915)