Inconel 718 Bar Stock Suppliers
122 vetted U.S. suppliers · 26 states
Buyers sourcing Inconel 718 bar stock are typically working from an aerospace, oil-and-gas, or high-temperature print where the grade is non-negotiable. Below is the live count of vetted U.S. suppliers in our database that carry it, broken down by state — pick any of them and send RFQs to several in one click.
Geographic distribution
Where these suppliers are
Top 8 states by vetted-supplier density. 36 more across 18 additional states — listed below the chart.
Also covered
North Carolina (5) · New Jersey (4) · Michigan (4) · Georgia (3) · Washington (3) · Indiana (3) · Minnesota (2) · South Carolina (2) · Virginia (1) · Mississippi (1) · Tennessee (1) · Kansas (1) · Missouri (1) · Rhode Island (1) · Wisconsin (1) · Iowa (1) · Massachusetts (1) · New Hampshire (1)
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What Inconel 718 bar stock is
Inconel 718 is a nickel-chromium superalloy strengthened by precipitation hardening — designed for parts that hold strength and oxidation resistance well past 700°C. Bar stock (round, square, or hex) is the form factor for shafts, fasteners, turbine components, downhole tools, and aerospace structural parts. Most mill orders ship as bright-drawn or peeled bar in solution-annealed condition; AMS 5662 / AMS 5663 cover the most common aerospace specs.
What to look for in a supplier
Check that the supplier holds (or can produce) the spec your print calls for — AMS 5662 for solution-treated, AMS 5663 for solution-treated and aged. Ask whether they carry mill certs traceable to heat number, whether they stock common diameters or only fill on cut-to-length, and what their minimum order size looks like. Aerospace-qualified shops will typically carry AS9100 certification; oil-and-gas-focused suppliers may emphasize NACE MR0175 / ISO 15156 compliance instead. Lead time on rare diameters can run 4-8 weeks, so confirm stock position before quoting downstream.
FAQ
Common questions
What's the difference between Inconel 718 and Inconel 625?
718 is precipitation-hardenable and gets its strength from heat treatment, so it's used where high tensile strength up to ~700°C matters (turbine disks, fasteners, downhole tools). 625 is solid-solution-strengthened, more corrosion-resistant in marine and acidic environments, but lower strength. Don't substitute one for the other without engineering review.
Is AMS 5662 the same as Inconel 718?
AMS 5662 is the aerospace spec for solution-treated and precipitation-hardened Inconel 718 bar — same alloy, with a specific heat treatment and inspection regime. If your print calls for AMS 5662 specifically, you need a supplier who can certify to that spec, not just any 718 bar.
What sizes does Inconel 718 bar stock typically come in?
Round bar is the most common, from 0.25" up through 12" diameter for forged sizes. Square and hex bar are available in smaller diameters. Mill runs are typically 12-ft lengths; cut-to-length is standard from most suppliers but adds cost.
What's a reasonable lead time for Inconel 718 bar?
Common diameters from a stocking distributor: 1-3 weeks. Custom diameters, large quantities, or full mill orders: 8-16 weeks. Always ask for current stock position when quoting — Inconel pricing and availability move with nickel commodity cycles.
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