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The Unified Numbering System for Metals and Alloys (UNS) is an alloy designation system widely accepted in North America. Each UNS number relates to a specific metal or alloy and defines its specific chemical composition , or in some cases a specific mechanical or physical property .
The alloy number is simply a general classifier, whereas it is the specification itself that narrows down the steel to a very specific standard. The SAE steel grade system's correspondence to other alloy numbering systems, such as the ASTM-SAE unified numbering system (UNS), can be seen in cross-referencing tables (including the ones given below).
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 ...
AL-6XN (UNS designation N08367) is a type of weldable stainless steel that consist of an alloy of nickel (24%), chromium (22%) and molybdenum (6.3%) with other trace elements such as nitrogen. The high nickel and molybdenum contents of the AL-6XN alloy give it good resistance to chloride stress- corrosion cracking.
The common, non-stainless grades contain 17–19 wt% Ni, 8–12 wt% Co, 3–5 wt% Mo and 0.2–1.6 wt% Ti. [5] Addition of chromium produces corrosion-resistant stainless grades. This also indirectly increases hardenability as they require less Ni; high-Cr, high-Ni steels are generally austenitic and unable to become martensite when heat ...
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%.
Print/export Download as PDF; Printable version; In other projects Wikimedia Commons; ... Nickel alloys are alloys with nickel as principal element.
Inconel 625 was designed as a solid solution strengthened material with no significant microstructure. This holds true at low and high temperatures, but there is a region (923 to 1148 K) where precipitates form that are detrimental to the creep properties, and thus the strength, of the alloy.
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