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High-speed steel (HSS or HS) is a subset of tool steels, commonly used as cutting tool material. It is superior to high- carbon steel tools in that it can withstand higher temperatures without losing its temper (hardness).
After other high-speed steels were produced, T1 remained one of the most commonly used commercial high-speed steels for the next century. [ 23 ] [ 24 ] The next year Crucible formed the Pittsburg Crucible Steel Company, purchasing a 423-acre (171 ha) site from Midland Steel on the Ohio River near Pittsburgh for $7.5 million to build a new plant ...
CPM REX T15(HSS) [55] is super high-speed steel made by the CPM process. It is a tungsten type high speed containing high vanadium for excellent abrasion resistance, and cobalt for good red hardness, and is used for cutting difficult-to-machine materials where high frictional heating is encountered. Others
GMTC provides more than 500 steel grades such as superalloy, titanium alloy, ESR & VAR steel, high speed steel, stainless steel, quenched-tempered steel, tool steel, special steel profile and precision parts machining. The main product shapes are focused on round bars and square bars.
1.11–1.30% carbon: files, small drills, lathe tools, razor blades, and other light-duty applications where more wear resistance is required without great toughness. Steel of about 0.8% C gets as hard as steel with more carbon, but the free iron carbide particles in 1% or 1.25% carbon steel make it hold an edge better.
Mushet steel was primarily used in machine tools due to its ability to retain its hardness at high temperatures. In 1894, Frederick Winslow Taylor conducted machining comparison tests between Mushet steel and high carbon tool steel. He found that it could cut 41 to 47% faster on hard tire steel forgings and approximately 90% faster on mild steels.
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