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Monel alloy 405, also known as Monel R405, is the free-machining grade of alloy 400. [24] The nickel, carbon, manganese, iron, silicon & copper percent remains the same as alloy 400, but the sulfur is increased from 0.024 max to 0.025-0.060%.
Monell received a patent in 1906 [9] on the manufacture of a nickel-copper alloy that became known as Monel alloy 400, [10] setting off a century of inventions in the alloy industry. [11] The alloy was named after Monell, but one l had to be truncated because at that time, family names were not allowed to be used as trademarks. [12]
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This list of mines in Portugal is subsidiary to the list of mines article and lists working, defunct and future mines in the country and is organised by the primary mineral output. For practical purposes stone, marble and other quarries may be included in this list.
The Portuguese Wikipedia (Portuguese: Wikipédia em português) is the Portuguese-language edition of Wikipedia (written Wikipédia, in Portuguese), the free encyclopedia. It was started on 11 May 2001. [2] Wikipedia is the nineteenth most accessed website in Brazil [3] and the tenth most accessed in Portugal. [4]
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Portugal is a developed country with a high-income advanced economy and a high living standard. [ 1 ] [ 2 ] [ 3 ] It is the 5th most peaceful country in the world , [ 4 ] maintaining a unitary semi-presidential republican form of government.
Portugal, [e] officially the Portuguese Republic, [f] is a country in the Iberian Peninsula in Southwestern Europe.Featuring the westernmost point in continental Europe, Portugal borders Spain to its north and east, with which it shares the longest uninterrupted border in the European Union; to the south and the west is the North Atlantic Ocean; and to the west and southwest lie the ...