High Speed Grades
T-grade and M-grade tool steels are used for cutting tools where strength and hardness must be retained at temperatures up to or exceeding 760 °C (1,400 °F). M-grade tool steels were developed to reduce the amount of tungsten and chromium required.
T1 (also known as 18-4-1) is a common T-grade alloy. Its composition is 0.7% carbon, 18% tungsten, 4% chromium, and 1% vanadium. M2 is a common M-grade alloy.
Read more about this topic: Tool Steel
Famous quotes containing the words high, speed and/or grades:
“London, thou art of townes A per se.
Soveraign of cities, semeliest in sight,
Of high renoun, riches, and royaltie;
Of lordis, barons, and many goodly knyght;
Of most delectable lusty ladies bright;
Of famous prelatis in habitis clericall;
Of merchauntis full of substaunce and myght:
London, thou art the flour of Cities all”
—William Dunbar (c. 1465–c. 1530)
“Life is too short to waste
In critic peep or cynic bark,
Quarrel or reprimand:
‘Twill soon be dark;
Up, heed thine own aim, and
God speed the mark!”
—Ralph Waldo Emerson (1803–1882)
“Kindliness seems to exist primarily as an animal instinct, so deeply rooted that mental degeneracy, which works from the top down, does not destroy it until the mind sinks to the lower grades of idiocy.”
—Charles Horton Cooley (1864–1929)