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Pages in category "420 mm artillery" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes. 0–9. 2B1 Oka;
Aubrey Cottle (born () April 6, 1987), [1] also known as Kirtaner or Kirt, is a Canadian website forum administrator who claims to be an early member of the hacktivist group Anonymous. [2]
420chan was an anonymous imageboard founded on 20 April 2005 [3] [4] [note 1] by hacker [5] and freelance web developer [6] Aubrey Cottle. [1] According to its founder, its name was a portmanteau of 420, a slang word originating in cannabis culture but now applicable to drug culture more generally, and 4chan, another imageboard website. [7]
X46Cr13 has good workability when hot, and potential to reach high hardness of up to 56 HRC. [4] [5] It contains a moderately high carbon ratio of approximately 0.46% which gives it a good compromise between high hardness and corrosion resistance for many applications.
Alloy 20 is an austenitic stainless steel containing less than 50% iron developed for applications involving sulfuric acid.Its corrosion resistance also finds other uses in the chemical, petrochemical, power generation, and plastics industries.
The International 420 Dinghy is a sailing dinghy popular for racing and teaching. The hull is fiberglass with internal buoyancy tanks. The 420 has a bermuda rig, spinnaker and trapeze.