Inconel Alloy 660 Chemical Composition, Grade, Chart and PDF Online

Inconel Alloy 660, an nickel titanium alluminium that is widely used, is called Inconel 660 and is known for its unique resistance to high temperature oxidation and corrosion. Its chemical formula is mainly nickel, chromium and iron, with titanium and aluminum as secondary ones. Their composition makes the steel alloys so strong. Inconel 660 is a suitable compound in the aircraft sector, the engine construction and the petrochemical industries where the conditions are strenuous and extreme. International standards guide its grade specifications so as to sustain the superior quality and performance uniformly across its worldwide markets. Detailed tables, charts and documents in PDF format that list the components, grades, and properties of the material are online giving critical details to engineers, researchers, and product manufacturers that demand a robust and durable material.

Inconel Alloy 660 Chemical Composition And Grade Table

Inconel alloy 660, which is often called Inconel 660 or UNS S66286 in short, is a precipitate hardening nickel-chromium alloy, which is widely used for its excellent strength at high temperature. The chemical composition of this steel grades includes approximately 24% chromium, 13.5% nickel, 1.5% aluminum, 0.3% titanium, and small amounts of others including iron, manganese, silicon, copper, sulfur, and carbon. Having a high strength and corrosion resistance, Inconel Alloy 660 is applied in the aerospace engineering, gas turbines, nuclear reactors and other high temperature systems. The key characteristics are robustness and reliability. This is why it is used as a standard for critical engineering tasks with high demands for superior behavior in extreme conditions.

Inconel Alloy 660 Composition Table
Elements Ni Cr Ti Mn Mo Si V Al
Min (%) 24 13.50 1.90 - 1 - 0.10 -
Max (%) 27 16.0 2.35 2.0 1.5 1.0 0.50 0.35

Advantages and Disadvantages of Inconel Alloy 660

    Advantages:

  • High strength: Has very good tensile and yield strength, which are desirable in welding construction that will or may be exposed to heavy stress.

  • Good fatigue resistance: It also offers fatigue resistance to failure which enable it withstand cyclic loading at many applications.

  • Ease of fabrication: Is relatively easy to shape into different basic manufactured products such as; sheets, bars and forgings that assist in manufacturing.

  • Thermal stability: Closeness of an alloy to maintain its mechanical properties and soundness at increased heat, for cyclic heating and cooling.

    Disadvantages:

  • Limited availability: Possibilities that Alloy 660 is less accessible than standard alloys might have an impact on the supply chain for this material.

  • Sensitivity to grain boundary precipitation: During long periods to service at high temperatures, susceptible to grain boundary precipitation and decrease in mechanical properties.

  • Machining challenges: This is because it has to be worked under strict conditions due to its high strength and tendency for work hardening hence the high manufacturing costs as compared to other rods.

  • Weldability concerns: Suseptible to hot cracking and reduction in ductility when being welded, therefore welding should be done carefully where precautions concerning the choice of welding settings and processes have to be taken.

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