Alloys
Inconel 706/UNS N09706

Inconel 706/UNS N09706

Inconel 706, also referred to as Alloy 706 and designated as UNS N09706, is a precipitation-hardenable nickel-iron-chromium alloy. It is engineered to provide an excellent combination of high strength and good fabricability, making it easier to machine and weld compared to other superalloys such as Inconel 718. The alloy exhibits outstanding resistance to corrosion and oxidation, while maintaining structural stability at elevated temperatures. Its controlled chemistry allows for reliable performance in demanding environments.

Inconel 706 is primarily used in aerospace, gas turbines, and power generation sectors. It is especially valued for turbine discs, shafts, rings, fasteners, and other critical rotating components where both mechanical strength and thermal stability are required. The alloy is available in multiple forms including Inconel 706 round bars, forgings, billets, sheets, plates, and precision parts, offering a wide range of solutions for high-performance engineering applications.

Inconel 706/UNS N09706

Inconel 706/UNS N09706 Chemical Compositions

Elements Content (%)
Nickel, Ni 39-44
Iron, Fe 38
Chromium, Cr 14.5-17.5
Niobium, Nb 2.50-3.30
Cobalt, Co ≤ 1
Titanium, Ti ≤ 0.40
Copper, Cu ≤ 0.35
Manganese, Mn ≤ 0.35
Silicon, Si ≤ 0.35
Carbon, C ≤ 0.30
Aluminum, Al ≤ 0.060
Phosphorous, P ≤ 0.020
Sulfur, S ≤ 0.015
Boron, B ≤ 0.0060

Inconel 706/UNS N09706 Physical Properties

Properties Metric Imperial
Density 8.05 g/cm³ 0.291 lb/in³
Melting point 1360°C 2480°F

Inconel 706/UNS N09706 Mechanical Properties

Properties Metric Imperial
Tensile strength 757 MPa 109800 psi
Yield strength (at strain 0.200%) 383 MPa 55500 psi
Poisson’s ratio (precipitation hardened, calculated by mfr) 0.382 0.382
Modulus of elasticity (precipitation hardened, dynamic method) 210 GPa 30500 ksi
Elongation at break 47% 47%

Inconel 706/UNS N09706 Standard Specifications

Bars, Forgings and Rings SAE AMS 5701,SAE AMS 5702,SAE AMS 5703
Sheet, Strip and Plate SAE AMS 5605,SAE AMS 5606

Standard product forms of Inconel 706/UNS N09706 are pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon and wire. The products are available in a wide variety of sizes. Please contact us at [email protected] for full information. 

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