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  2. High-speed steel - Wikipedia

    en.wikipedia.org/wiki/High-speed_steel

    M42 is a molybdenum-series high-speed steel alloy with an additional 8% cobalt. [14] It is widely used in metal manufacturing industries because of its superior red-hardness as compared to more conventional high-speed steels, allowing for shorter cycle times in production environments due to higher cutting speeds or from the increase in time ...

  3. Spark testing - Wikipedia

    en.wikipedia.org/wiki/Spark_testing

    Manganese steel Manganese steel has medium length sparks that fork twice before ending. [5] High-speed steel High-speed steel has a faint red spark that sparks at the tip. [5] 300-series stainless steel These sparks are not so dense as the carbon steel sparks, do not fork, and are orange to straw in color. [2] 310-series stainless steel

  4. Stellite - Wikipedia

    en.wikipedia.org/wiki/Stellite

    Stellite alloys are a family of completely non-magnetic and corrosion-resistant cobalt alloys of various compositions that have been optimised for different uses. Stellite alloys are suited for cutting tools, an example is Stellite 100, because this alloy is quite hard, maintains a good cutting edge at high temperature, and resists hardening and annealing.

  5. List of blade materials - Wikipedia

    en.wikipedia.org/wiki/List_of_blade_materials

    CPM REX 20 (HS) [49] is a cobalt-free super high-speed steel made by the CPM process. CPM REX 45 (HS) [50] is an 8% cobalt modification of M3 high speed steel made by the CPM process. As of September 2018, this steel was used in some limited-run production knives from Spyderco.

  6. List of named alloys - Wikipedia

    en.wikipedia.org/wiki/List_of_named_alloys

    Kovar (nickel, cobalt) Spiegeleisen (manganese, carbon, silicon) Staballoy (stainless steel) (manganese, chromium, carbon) - see also Uranium below; Steel (Category:Steels) Bulat steel; Chromoly (chromium, molybdenum) Crucible steel; Damascus steel; Ducol; Hadfield steel; High-speed steel. Mushet steel; HSLA steel; Maraging steel; Reynolds 531 ...

  7. Cobalt - Wikipedia

    en.wikipedia.org/wiki/Cobalt

    Some high-speed steels also contain cobalt for increased heat and wear resistance. The special alloys of aluminium, nickel, cobalt and iron, known as Alnico, and of samarium and cobalt (samarium–cobalt magnet) are used in permanent magnets. [142]

  8. Cutting tool material - Wikipedia

    en.wikipedia.org/wiki/Cutting_tool_material

    The latter has higher toughness, but can't be used for machining steel, due to very high wear. Alumina, or aluminum oxide, is also extensively used in the production of cutting tools due to its exceptional hardness and wear resistance. [2] Alumina cutting tools also have high thermal conductivity, which helps dissipate heat generated during ...

  9. Alloy steel - Wikipedia

    en.wikipedia.org/wiki/Alloy_steel

    Principal effects of major alloying elements for steel [2]: 144 Element Percentage Primary function Aluminum: 0.95–1.30 Alloying element in nitriding steels Bismuth — Improves machinability Boron: 0.001–0.003 (Boron steel) A powerful hardenability agent Chromium: 0.5–2 Increases hardenability 4–18 Increases corrosion resistance Copper ...

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