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Elwood Haynes (October 14, 1857 – April 13, 1925) was an American inventor, metallurgist, automotive pioneer, entrepreneur and industrialist.He invented the metal alloy stellite and independently co-discovered martensitic stainless steel along with Englishman Harry Brearley in 1912 and designed one of the earliest automobiles made in the United States.
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.
Alloy steel castings are broken down into two categories: low-alloy steels and high-alloy steels. [4] Low-alloy steels contain less than 8% alloying content and high-alloy steels have 8% or more. [4] This is a table of some steel casting alloys:
In March 2007, Haynes became a public company via an initial public offering. [5] [6] The Space Shuttle program, which ended in 2011, used total of 47 parts made from Haynes 188 alloy and 7 from Haynes' Hastelloy B alloy in its engines. Hastelloy C-22 alloy was used for the fuel line bellows that assisted in achieving takeoff. [3]
During 1986, Goodwin secured a license from Langley alloys to produced Super Duplex Stainless Steel (Ferralium™ Alloy 255 3SC (UNS S32550)). [2] During 1990, Goodwins were granted an exclusive (to the UK) license from Haynes International to produce cast Hastelloy (super nickel alloys). [2]
Inconel alloys are oxidation- and corrosion-resistant. When heated, Inconel forms a thick, stable, passivating oxide layer protecting the surface from further attack. Inconel retains strength over a wide temperature range, attractive for high-temperature applications where aluminum and steel would succumb to creep as a result of thermally ...
Alacrite (also known as Alloy L-605, Cobalt L-605, Haynes 25, and occasionally F90 [1] [2] [3]) is a family of cobalt-based alloys. The alloy exhibits useful mechanical properties and is oxidation- and sulfidation -resistant.
In the era of commercial wrought iron, blooms were slag-riddled iron castings poured in a bloomery before being worked into wrought iron. In the era of commercial steel, blooms are intermediate-stage pieces of steel produced by a first pass of rolling (in a blooming mill) that works the ingots down to a smaller cross-sectional area, but still greater than 36 in 2 (230 cm 2). [1]