Aerospace Alloy Selection

Alloys for Aerospace Applications

Select nickel alloys and precipitation-hardening stainless steels for aerospace applications. Compare Inconel 718, X-750, A286, Nimonic 80A, 17-4PH and RFQ requirements.

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Quick Answer: Aerospace alloy selection often starts with Inconel 718 for high-strength forged parts and fasteners, Inconel X-750 for springs and hot fasteners, Incoloy A286 for heat-resistant fasteners, Nimonic 80A for hot mechanical components, and 17-4PH for high-strength stainless shafts, fittings and precision parts.

For aerospace and precision components, buyers should confirm specification, heat treatment condition, mechanical properties, inspection, traceability, size tolerance and machining allowance before quotation.

Recommended Alloys

AlloyCommon ServiceWhy It Is ConsideredProduct Page
Inconel 718Aerospace fasteners, forged parts, turbine and structural componentsPrecipitation-hardened nickel alloy with high strength and good elevated-temperature performanceView product
Inconel X-750Springs, clips, hot fasteners and turbine-related hardwareAge-hardenable nickel alloy used where relaxation resistance and hot strength matterView product
Incoloy A286Heat-resistant aerospace fasteners and turbine componentsIron-nickel-chromium alloy with precipitation hardening and good fabrication behaviorView product
Nimonic 80AHot bolts, valves, turbine and high-temperature mechanical partsNickel-chromium precipitation-hardening alloy for hot strengthView product
17-4PHHigh-strength stainless shafts, fittings and precision partsPH stainless steel for high strength where corrosion severity allowsView product

Selection Guide

If Your Project NeedsStart WithRFQ Notes
High-strength nickel alloy bar or forgingStart with Inconel 718Confirm ASTM/AMS specification, heat treatment and UT requirement.
Spring or hot fastener performanceReview Inconel X-750, A286 or Nimonic 80ASpecify tensile strength, aging condition and service temperature.
High-strength stainless componentConsider 17-4PHConfirm H900, H1025, H1150 or project-specified condition.
Precision machined partCompare bar, forging or cut plate routesProvide drawing, tolerance, machining allowance and inspection scope.

Common Product Forms

Product FormTypical MaterialsRelated Landing Page
Bar / RodInconel 718, A286, 17-4PH, Nimonic 80AInconel 718 bar supplier
Wire / Spring WireInconel X-750, A286, Nimonic 80AInconel X-750 wire supplier
Forging / RingInconel 718, 17-4PH, GH alloys17-4PH bar and forging reference

Standards and Inspection Notes

Standards

Confirm ASTM, ASME, AMS, EN, GB, NACE or project-specific standards before quotation.

Service Conditions

Include temperature, medium, pressure, load, atmosphere, corrosion concerns and fabrication requirements.

Inspection

Available options may include EN 10204 3.1 MTC, PMI, UT, tensile, hardness, dimensional inspection or third-party inspection.

Application FAQ

What alloys are commonly used for aerospace applications?

Inconel 718, Inconel X-750, Incoloy A286, Nimonic 80A and 17-4PH are common starting points depending on strength, temperature, spring performance, corrosion exposure and specification.

Which alloy is used for aerospace fasteners?

Inconel 718, Inconel X-750 and A286 are commonly considered for aerospace fasteners. Final selection depends on temperature, tensile strength, heat treatment and applicable AMS or project specification.

What RFQ details are needed for aerospace alloy parts?

Send alloy grade, specification, product form, size or drawing, heat treatment condition, quantity, mechanical property requirement, inspection scope and destination country.

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Send us the application, service condition, alloy grade if known, product form, size, quantity, standard, material condition, inspection requirement and destination country.

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