High Speed Steels High speed steels forms a special class of highly alloyed tool steels, combining properties such as high hot hardness and high wear resistance. These are so named mainly because of their ability to machine materials at high cutting speeds. These steels have been widely adopted as the most basic material for cutting …
Read MoreHadfield Manganese Steel Hadfield steel also known as Hadfield steel or Hadfield austenitic manganese steel was invented by Sir Robert Hadfield in 1882. The first British patent for this steel, number 200 was granted for this steel in 1883. The first US patents, numbers 303150 and 303151, were granted in 1884. Fig 1 shows the …
Read MoreSteel Castings Steel castings are produced by pouring liquid steel of the desired composition into a mould of the desired configuration and allowing the steel to solidify. The mould material can be silica, zircon, or chromite sand, olivine sand, graphite, metal, or ceramic. The choice of mould material depends on the size, intricacy, dimensional accuracy …
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