Durable Inconel 718 Forgings: High Strength & Corrosion Resistance

"Alloy 718 (UNS N07718) forgings" generally refer to blanks or parts made from INCONEL 718 (GH4169) nickel-based superalloy through a forging process. It is a high-performance material that is widely used in high-temperature, high-strength, and highly corrosive environments.

What is 718 Alloy?

Firstly, it's essential to understand the 718 alloy itself. It is an austenitic, precipitation-hardening nickel-based superalloy primarily composed of nickel, with additions of chromium, iron, niobium, molybdenum, and other elements.

• Key Composition:

  • Nickel (Ni): The base element, providing excellent high-temperature stability and corrosion resistance.

  • Chromium (Cr): Provides outstanding oxidation and corrosion resistance.

  • Niobium (Nb) and Molybdenum (Mo): The primary strengthening elements, which form strengthening phases (such as the γ'' phase) through reactions with the matrix.

  • Iron (Fe): Present in significant amounts, which helps reduce cost while maintaining performance.

• Core Characteristics:

  • High Strength: Possesses extremely high strength from cryogenic temperatures up to approximately 700°C.

  • Excellent Fatigue and Creep Resistance: Resists deformation and fracture under long-term exposure to high temperatures and stress.

  • Good Oxidation and Corrosion Resistance: Capable of withstanding various harsh environments, such as acids and salt spray.

  • Excellent Fabricability: Compared to other high-performance superalloys, Alloy 718 offers relatively good forgeability and machinability.

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Application Areas

Due to their exceptional comprehensive properties, 718 forgings are widely used in cutting-edge industrial sectors:

1. Aerospace (Largest Application Sector):

   • Jet Engines: Turbine discs, compressor discs, blades, shafts, casings, combustion chamber components. These parts must operate under high temperatures, pressures, and rotational speeds, making 718 forgings the primary choice.

   • Rocket Engines: Turbopumps, valves, flanges.

   • Spacecraft Structural Components.

2. Energy Industry:

   • Gas Turbines: Similar to jet engines, used for hot-section components like blades and discs in power generation gas turbines.

   • Nuclear Power Equipment: Fasteners, springs, etc., in nuclear reactors.

3. Oil and Gas:

   • Used for wellhead equipment, valves, pipe connectors, flanges, etc., in deep-sea extraction, which require resistance to high pressure and highly corrosive environments.

4. Chemical and Process Industries:

   • Reactors, heat exchangers, pumps, valves that need to handle highly corrosive media.

Hunan Dinghan New Material Technology Co.,Ltd. (DINGSCO) specialized in Nickel Based Corrosion Resistant and High Temperature alloys products which used in the world’s most technically demanding industries and applications.

We have complete advanced technology facilities to produce best quality alloys to meet exacting your specifications such as VIM (Vacuum lnduction Melting) furnace to provide high purity Alloys,ESR (Electro Slag Re-melting) furnace to enhances the structure and purity of the Alloys, and CNC machining equipments (Lathe, Wire cutting, Drilling,Milling) to provide high precision finished products.

We are dedicated to providing our customers with best quality products,fastest possible deliveries, most competitive prices of Nickel Based Corrosion Resistant and High Temperature alloys in bars,rods,forged flanges, valve parts, forged shapes (shafts, discs, blocks, hubs,rings, cylinders and tailor shapes) according to ASTM,ASME,API,AMS, NACE and other industry standards.

We can help you gain a competitive edge in the market by responding to a rush quote in less than 24 hours and even complex requests for price and delivery quotations are responded to within 48 hours.