Alloy 20

Alloy 20

Alloy 20 is a corrosion-resistant nickel-chromium-molybdenum stainless steel alloy developed for applications involving sulfuric acid. Its corrosion resistance also finds other uses in the chemical, food, pharmaceutical, and plastics industries. Alloy 20 resists pitting and chloride ion corrosion and its copper content protects it from sulfuric acid.

It is also known as Carpenter 20. Cast versions are designated CN7M.


* Nickel, 32.5-35%
* Chromium, 19-21%
* Carbon, 0.06% maximum
* Copper, 3-4%
* Molybdenum, 2-3%
* Manganese, 2% maximum
* Silicon, 1% maximum
* Columbium, 1% maximum
* Iron, 31-44% (balance)

= Other Names] =

* UNS N08020
* DIN 2.4660
* CN7M

* Carpenter 20 CB 3TM
* AL 20TM
* Carlson Alloy C20TM
* Nickelvac 23TM
* Nicrofer 3620 NbTM


ASTM B729, B464, B366, B473, B462

ASME SB729, SB464, SB366, SB473, SB462

ANSI / ASTM A555-79 [ [ Carpenter 20 Wire, 30 Mesh Screen Data Sheet ] ]


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  • Alloy — Al*loy , n. [OE. alai, OF. alei, F. aloyer, to alloy, alier to ally. See {Alloy}, v. t.] 1. Any combination or compound of metals fused together; a mixture of metals; for example, brass, which is an alloy of copper and zinc. But when mercury is… …   The Collaborative International Dictionary of English

  • alloy — Alloy. s.m. Le prix de l or ou de l argent considerez en leur valeur intrinseque, ou bien selon que la matiere en est plus ou moins fine. Cette monnoye n est pas d un bon alloy, de bon alloy, C est à dire, est alterée, est meslée d autres metaux …   Dictionnaire de l'Académie française

  • Alloy — Al*loy , v. t. [imp. & p. p. {Alloyed}; p. pr. & vb. n. {Alloying}.] [F. aloyer, OF. alier, allier, later allayer, fr. L. aligare. See {Alloy}, n., {Ally}, v. t., and cf. {Allay}.] 1. To reduce the purity of by mixing with a less valuable… …   The Collaborative International Dictionary of English

  • Alloy — bezeichnet: Alloy Analyzer, ein in der Informatik und Softwaretechnik eingesetztes Programm Alloy Creek, ein Fluss im US Bundesstaat Montana Diese Seite ist eine Begriffsklärung zur Unterscheidung mehrerer mit demselben Wort bezeichneter Begriffe …   Deutsch Wikipedia

  • alloy — [n] mixture, usually of two metals admixture, adulterant, adulteration, amalgam, amalgamation, blend, combination, composite, compound, debasement, denaturant, fusion, hybrid, intermixture, reduction; concepts 260,476 alloy [v1] mix metals admix …   New thesaurus

  • alloy — [al′oi; ] also, and for v. usually [, ə loi′, aloi′] n. [ME alai < Anglo Fr alei (OFr aloi) < aleier: see ALLOY the vt.] 1. the relative purity of gold or silver; fineness 2. a substance that is a mixture, as by fusion, of two or more… …   English World dictionary

  • Alloy — Al*loy , v. t. To form a metallic compound. [1913 Webster] Gold and iron alloy with ease. Ure. [1913 Webster] …   The Collaborative International Dictionary of English

  • Alloy — Porté notamment dans le Pas de Calais et dans l Oise, c est sans doute une variante de Halloy, nom de communes de la Somme, du Pas de Calais et de l Oise. Signification probable : lieu où pousse le noisetier. On peut aussi envisager pour Alloy… …   Noms de famille

  • alloy — ► NOUN 1) a metal made by combining two or more metallic elements, especially to give greater strength or resistance to corrosion. 2) an inferior metal mixed with a precious one. ► VERB 1) mix (metals) to make an alloy. 2) spoil by adding… …   English terms dictionary

  • Alloy — Alloy. См. Сплав. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

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