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Inconel Alloy 686 Chemical Composition, Grade, Table and Document

Inconel Alloy 686 which is known for its outstanding corrosion resistance under severe conditions, thanks to its chemical composition designed for the best strength and other qualities characteristic of high performance applications. Such alloy, mostly consisting of nickel, chromium, molybdenum and tungsten has a Grade 686 number assigned to it as an indication of its advanced quality and dependability. The blend exactly corresponds to the rigorous industry's standards, guarantee the compliance of performance in the critical processes like chemical manufacturing, cleaning up the pollution and in spite in a salty seawater environment. Instructional tables, charts and documents containing the formula's alloy composition are handed out on request, giving technical information on the characteristics and application fields. Engineers worldwide rely on Inconel Alloy 686 which is unique for its outstanding corrosion, oxidation and sulfidation resistance to work under the most severe conditions.

Inconel Alloy 686 Chemical Composition And Grade Table

Inconel alloy 686, which is a superalloy made of nickel, chromium and molybdenum, is widely acknowledged for its exceptional ability to resist corrosion in a various kinds of extreme conditions. Containing mostly nickel along with chromium, molybdenum and tungsten composites, Alloy 686 displays high level resistance to both oxidizing and reducing chemicals, as well as to general corrosion such as pitting and crevice corrosion. This composition is usually made up of specific elemental proportions including nickel (50%), chromium (21-24%), molybdenum (15-17%), iron (5.0%), tungsten (3.0-4.4%), cobalt (1%), and others, which combine to yield its exemplary features in the most industry-wide applications.

Inconel Alloy 686 Composition Table
Elements Ni Cr Mo Fe W Mn P S Ti C
Min (%) - 19 15 - 3.0 - - - 0.020 -
Max (%) 59 23 17 5 4.40 0.75 0.040 0.020 0.25 0.010

Advantages and Disadvantages of Inconel Alloy 686

    Advantages:

  • Exceptional corrosion resistance: Affords excellent protection against diverse corrosive environments, which include acids, salts, and saltwater.

  • High temperature performance: It exhibits very good mechanical properties at temperatures greater than those of the room temperature and resistant to higher temperatures.

  • Fabrication versatility: Is easy to make from raw stock and can easily be welded into shape, making and can be easily machined.

  • Long-term durability: Should have a high level of resistance to corrosion and oxidation so as to be able to timber for an extended period especially in aggressive conditions.

    Disadvantages:

  • Cost: The next disadvantage is that the material currently costs more than plain stainless steel, which can be a problem in tight budgets.

  • Weldability challenges: Need special welding technique and managing temperature for welding so that flaw will not form and material will remain corrosion free.

  • Sensitivity to impurities: vulnerable to embrittlement and, thus, exhibiting less resistance to corrosion in the presence of specific impurities.

  • Limited availability: Compared to Alloy 686, it may be more challenging to acquire and rely on it within supply chains than the several different types of alloy that are more standard.

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MetalsPrice/TonnePrice/KG
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