Alloy 713C，Inconel 713C Plate，

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Alloy 713C and Inconel 713C Wire - Introduction with Composition, Properties, Applications and Product Forms

Alloy 713C, commercially known as Inconel 713C, is a nickel-chromium-based superalloy celebrated for its exceptional high-temperature strength, excellent creep resistance, and superior oxidation resistance. This high-performance material is available in a comprehensive range of forms to meet diverse industrial requirements, including Bar (Round bar, Flat bar), Ribbon, Wire, Rods, Tube, Pipe, Foil, Plate, Sheet, Strip, and Forging Stock. Inconel 713C Wire, in particular, offers unique flexibility for intricate applications. Below is a detailed overview of its chemical composition, key properties, practical applications, and available product forms.

Chemical Composition

The precisely engineered chemical composition of Alloy 713C (Inconel 713C) is the foundation of its outstanding performance at elevated temperatures. The typical composition (by weight) is as follows:

Nickel (Ni): 70-74% (primary matrix element, providing the base for high-temperature stability and corrosion resistance)

Chromium (Cr): 11-13% (enhances oxidation and corrosion resistance, forming a protective oxide layer at high temperatures)

Aluminum (Al): 5.5-6.5% (critical for precipitation hardening, forming gamma-prime (γ’) intermetallic phases that strengthen the alloy)

Titanium (Ti): 3.8-4.5% (works with aluminum to promote γ’ precipitate formation, boosting high-temperature strength)

Molybdenum (Mo): 3.0-3.5% (improves creep resistance and strengthens the alloy matrix at elevated temperatures)

Cobalt (Co): 0.5-1.0% (aids in solid solution strengthening and enhances thermal stability)

Carbon (C): 0.05-0.10% (forms carbides at grain boundaries, improving creep resistance)

Zirconium (Zr): 0.05-0.15% (refines grain structure and enhances grain boundary strength)

Boron (B): 0.005-0.015% (strengthens grain boundaries, reducing the risk of intergranular fracture)

Trace elements: Silicon (Si) ≤ 0.50%, Manganese (Mn) ≤ 0.50%, Iron (Fe) ≤ 1.0% (optimize fabricability and weldability)

Key Properties

Alloy 713C and its various forms, including Inconel 713C Wire, exhibit a remarkable set of properties that make them indispensable in high-temperature environments:

Mechanical Properties (room temperature, heat-treated condition):

Tensile strength: 1200-1400 MPa (174,000-203,000 psi)

Yield strength (0.2% offset): 850-1000 MPa (123,000-145,000 psi)

Elongation (in 50 mm): 8-12% (adequate ductility for fabrication into complex shapes)

Hardness: 35-40 HRC (indicative of high strength and wear resistance)

High-Temperature Performance:

Thermal stability: Maintains exceptional strength up to 900°C (1652°F), with tensile strength remaining above 600 MPa at 800°C (1472°F)

Creep resistance: Exhibits minimal deformation under sustained stress at 700-850°C (1292-1562°F), making it ideal for long-term service in high-temperature applications such as gas turbines

Oxidation resistance: Resists oxidation in air and combustion gases up to 1000°C (1832°F), forming a dense, adherent oxide layer that protects the underlying material

Corrosion Resistance:

Excellent resistance to high-temperature corrosion, including sulfidation and carburization in industrial environments

Good resistance to aqueous corrosion in mild environments, such as freshwater and some industrial chemicals

Resists stress corrosion cracking in high-temperature, high-pressure water systems, making it suitable for nuclear and power generation applications

Physical Properties:

Density: 7.8 g/cm³ (0.282 lb/in³)

Thermal conductivity: 15 W/(m·K) at 20°C (68°F), increasing to 25 W/(m·K) at 800°C (1472°F)

Melting point: 1290-1350°C (2354-2462°F)

Coefficient of thermal expansion: 12.0 μm/(m·K) (20-100°C), increasing to 16.0 μm/(m·K) at 800°C (1472°F)

Modulus of elasticity: 210 GPa (30,500 ksi) at room temperature, decreasing to 170 GPa (24,600 ksi) at 800°C (1472°F)

Product Forms

Alloy 713C is produced in a wide variety of forms to cater to diverse industrial processes and applications:

Bar: Available as Round bar (diameters from 10 mm to 300 mm) and Flat bar (thickness 8 mm to 150 mm, width 25 mm to 600 mm), ideal for machining into high-temperature components like turbine blades and fasteners.

Ribbon: Thin, flat strips (thickness 0.2 mm to 3 mm, width 10 mm to 150 mm) used in electrical heating elements and thermal insulation applications.

Wire: Inconel 713C Wire (diameters 0.1 mm to 12 mm) offers excellent ductility for forming high-temperature springs, thermocouple sheaths, and woven mesh.

Rods: Solid cylindrical rods (diameters 5 mm to 60 mm) suitable for structural supports and small-scale high-temperature components.

Tube and Pipe: Seamless and welded options (outer diameter 8 mm to 250 mm, wall thickness 0.8 mm to 25 mm) for high-temperature fluid transport in industrial and aerospace systems.

Foil: Ultra-thin sheets (thickness 0.02 mm to 0.15 mm) used in lightweight thermal barriers and precision electronics.

Plate and Sheet: Flat forms (plate: thickness 6 mm to 120 mm; sheet: 0.4 mm to 6 mm) for fabricating large structural components such as furnace walls and aerospace engine casings.

Strip: Narrow, flat strips (thickness 0.3 mm to 4 mm, width 15 mm to 250 mm) for precision manufacturing in high-temperature machinery.

Forging Stock: Billets and ingots for hot forging into complex shapes such as turbine disks, blades, and other critical aerospace components.

Applications

The exceptional properties of Alloy 713C across its various forms make it a preferred material in industries requiring reliable performance under extreme high-temperature conditions:

Aerospace and Aviation:

Gas turbine engines: Forging stock shaped into turbine blades, vanes, and disks; bars machined into compressor components—all leveraging high-temperature strength and creep resistance.

Jet engine components: Tubes and pipes for fuel and coolant lines; sheets for combustion chamber liners; wire for high-temperature seals and gaskets.

Rocket propulsion systems: Plates and forgings for thrust chambers; rods for structural supports in high-heat environments.

Power Generation:

Gas and steam turbines: Forged components like turbine wheels; tubes for heat exchangers; bars for valve stems, withstanding high temperatures and pressure.

Nuclear power plants: Pipes for coolant systems; plates for reactor internals; wire for instrumentation, resisting radiation and corrosion.

Industrial Processing:

High-temperature furnaces: Plates and sheets for furnace liners; tubes for heating element enclosures; ribbon for heating elements, enduring continuous exposure to high heat.

Petrochemical and chemical processing: Pipes and tubes for catalytic reactors; bars for valve components; wire mesh for high-temperature filtration, resisting corrosion and oxidation.

Specialized Applications by Form:

Wire: Thermocouple sheaths in industrial furnaces, high-temperature springs in aerospace systems, and woven filters in chemical processing.

Tube/Pipe: High-temperature fluid transport in gas turbines, heat exchanger tubes in power plants, and process piping in petrochemical refineries.

Plate/Sheet: Structural components in aerospace engines, furnace walls in industrial heat treatment, and radiation shields in nuclear applications.

Bar/Rod: Machined parts like turbine blades, fasteners, and gears in high-temperature machinery.

In summary, Alloy 713C (Inconel 713C) — available in forms ranging from Bar and Wire to Plate and Forging Stock — delivers exceptional high-temperature strength, creep resistance, and oxidation resistance. Its diverse product forms enable tailored solutions across aerospace, power generation, and industrial processing sectors, solidifying its position as a critical material in high-performance engineering applications.

Packing of Standard Packing:

 Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 2994 gallon liquid totes Special package is available on request.