Alloy 706 UNS N09706 Bar & Forging for Gas Turbine

Alloy 706 UNS N09706 balances high precipitation hardening strength and superior processability for demanding gas turbine service. It delivers similar performance to Alloy 718 with easier fabrication, ideal for turbine discs, shafts, casings and fasteners. For reliable Alloy 706 round bar and forging stock, ZYTC Alloy is your trusted Chinese supplier.

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Alloy 706, also known as Inconel 706 and designated UNS N09706, is a premium precipitation-hardenable nickel-iron-chromium superalloy engineered for high strength paired with excellent fabricability. Its mechanical performance is comparable to Alloy 718, yet Alloy 706 is much easier to form, machine and weld, making it a preferred choice for manufacturing complex gas turbine parts. This alloy is widely specified for critical components used in aerospace engines and land-based gas turbine systems.

As an experienced Chinese nickel superalloy manufacturer, ZYTC Alloy supplies high-quality Alloy 706 round bar and forging stock for gas turbine OEMs and engineering contractors around the globe. Our materials strictly comply with related aerospace specifications and can be customized to meet project-specific heat treatment and dimensional requirements.

Chemical Composition

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

Physical Properties

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

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%

Thermal Properties

Properties	Metric	Imperial
Thermal expansion co-efficient (at 24-100°C/75.2-212°F)	13.46 µm/m°C	7.478 µin/in°F
Thermal conductivity	12.5 W/mK	86.8 BTU in/hr.ft².°F

Available Product Forms

Alloy 706 UNS N09706 is offered in round bar and forging stock. For inquiries about stock availability, sizes and lead time, please reach out to our sales team.

Cross Reference & Equivalent Designations

Inconel 706 corresponds to a series of widely accepted aerospace industry specifications:

AMS 5605
AMS 5606
AMS 5701
AMS 5702
AMS 5703

Fabrication and Heat Treatment Guidance

Machinability

Inconel 706 can be machined with conventional machine tools used for iron-based alloys. General machining work uses standard commercial coolants. Water-based coolants are required for high-speed machining operations, including turning, milling and grinding, to protect cutting tools and ensure smooth surface finish.

Forming

Inconel 706 can be formed by all conventional metal forming techniques, both hot and cold.

Welding

Multiple mature welding processes are suitable for Inconel 706, including gas-tungsten arc welding, shielded metal-arc welding, submerged-arc welding, and gas metal-arc welding.

Heat Treatment

The standard annealing process for Inconel 706 is performed at 927 to 1010°C (1700 to 1850°F), followed by controlled cooling. The alloy achieves higher strength via precipitation hardening heat treatment.

Forging

Recommended forging temperature range for Inconel 706 is 983 to 1149°C (1800 to 2100°F).

Hot Working

Hot working operations can be carried out between 872 to 1149°C (1600 to 2100°F).

Cold Working

Cold working of Inconel 706 can be completed with standard tooling.

Applications

Alloy 706 is the reliable material of choice for core gas turbine components. Common parts include turbine shafts, engine casings, turbine discs and high-strength fasteners for both aerospace and land-based gas turbine equipment.

ZYTC Alloy Supply Advantages

ZYTC Alloy specializes in the production of aerospace-grade nickel-based superalloys. Our Alloy 706 round bars and forging stock are produced under strict metallurgical control, with stable chemical composition and consistent mechanical properties. Each shipment can be accompanied by full material test reports for quality verification.

We support small batch prototype orders as well as large volume serial supply for gas turbine component manufacturers. Our engineering team provides professional material selection consultation and technical support for your gas turbine projects.

Contact ZYTC Alloy Today

📧 Email: daisy@zytcsteel.com
📲 WhatsApp: +86 17335753350