inconel 718

Description

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YICHOU: Your Trusted China Manufacturer of Premium Inconel 718 Alloy Solutions

Aerospace-grade Inconel 718 superalloy—engineered for extreme environments from -253°C to 700°C—delivering unmatched strength, corrosion resistance & machinability. As a ISO-certified China manufacturer, YICHOU guarantees rapid turnaround, precision machining, and global compliance.

alloy

Unlock Extreme Performance with YICHOU’s Inconel 718

Inconel 718 (UNS N07718/DIN 2.4668) is a nickel-chromium-based superalloy strengthened by gamma prime (γ') and gamma double prime (γ″) precipitates. It dominates critical aerospace, oil & gas, and nuclear applications due to its:

  • Unrivaled High-Temperature Strength: Highest yield strength among deformable superalloys below 650°C, resisting creep and fatigue even under cyclic thermal stress18.

  • Corrosion Immunity: Exceptional resistance to oxidation, pitting, and stress corrosion cracking (SCC) in acidic, chloride-rich, or radiation-heavy environments310.

  • Cryogenic to Extreme Heat Stability: Reliable performance from -253°C to 700°C (short-term to 800°C)79.

  • Manufacturing Versatility: Excellent weldability and machinability vs. competing Ni-alloys, enabling complex part fabrication14.

Technical Specifications & Material Properties

1. Composition (ASTM B637 Standard)24

Precision-controlled chemistry for consistent batch quality:

Element Ni Cr Fe Nb+Ta Mo Ti Al C≤
Wt % 50-55 17-21 Balance 4.75-5.5 2.8-3.3 0.65-1.15 0.2-0.8 0.08

*Low S/P impurities (<0.015%) minimize intergranular brittleness*8.

2. Mechanical Properties (Solution-Treated & Aged)49

*Tested at 20°C per AMS 5662/5664*:

Property Value
Tensile Strength (σb) ≥965 MPa
Yield Strength (σ₀.₂) ≥550 MPa
Elongation (A5) ≥30%
Hardness ≤363 HB

At 650°C: Tensile strength remains ≥1000 MPa2.

3. Physical Properties16

  • Density: 8.24 g/cm³

  • Melting Range: 1260–1340°C

  • Thermal Conductivity: 11.4 W/m·K (20°C)

  • CTE (20–600°C): 13.9 µm/m·°C

YICHOU’s Manufacturing Capabilities

Product Forms & Processing Expertise

We supply custom-finished parts in:

  • Stock Forms: Round bars (Ø15–350mm), plates (0.05–14mm), tubes (seamless/welded), forgings, rings, wires68.

  • Precision Machined Components: Turbine blades, fasteners (bolts/nuts), valve bodies, flanges, reactor fittings57.

Optimized Processing Protocols

  • Hot Working: 1120–900°C with rapid quench (water/air). Final deformation ≥20% at ≥960°C13.

  • Heat Treatment: Customizable cycles:

    • Standard Aging: 720°C/8h → furnace cool to 620°C/8h → air cool8.

    • Direct Aging: For enhanced strength/creep resistance48.

  • Welding: TIG, electron beam, seam welding with ERNiFeCr-2 filler36.

Industries & Critical Applications

Inconel 718’s blend of strength and corrosion resistance makes it ideal for:

  • Aerospace: Jet engine mounts, turbine disks, thrust reversers, rocket motor cases710.

  • Energy: Nuclear reactor core components (grids, fuel spacers), LNG valves, downhole drilling tools18.

  • Industrial: High-strength bolts (ASTM A453 Grade 660), chemical reactor vessels, extrusion dies59.

⚠️ Note: Nuclear-grade variants (e.g., 718A) with boron control (<0.002%) available8.

superalloy manufacturing

 

Why Partner with YICHOU?

Competitive Edge Your Benefit
End-to-End Production Raw material → forging/machining → QA → delivery. Reduce logistics costs & lead times.
China Pricing Advantage Cost savings up to 30% vs. EU/US suppliers without quality compromise.
Strict Quality Assurance Mill certs (EN 10204 3.1), ultrasonic testing, chemical/mechanical batch reports48.
Rapid Customization Tailored sizes, tempers (solution-treated/aged), and post-processing (grinding, pickling).

Certifications & Compliance

YICHOU’s Inconel 718 conforms to global standards:

  • Aerospace: AMS 5662/5663/5664 (bars), AMS 5596/5597 (sheets)14.

  • Oil & Gas: NACE MR0175 (sulfide stress cracking resistant)6.

  • Nuclear: RCC-M (France), KTA (Germany)8.

Request a Quote Today!

Limited inventory available! Contact YICHOU for:
✅ Real-time pricing (FOB China, EXW, CIF).
✅ Technical datasheets & samples.
✅ Urgent orders (15–30 days standard lead time).

 

Superalloy

YICHOU—Precision Engineered Superalloys for Tomorrow’s Extreme Environments. Leverage our China manufacturing edge for Inconel 718 parts that outperform & outlast.

Get in Touch with Yichou

Let Yichou help you achieve excellence in your next project. Whether you need raw materials, custom alloy solutions, or precision-manufactured components, our team is ready to assist.

 

  • Email us: [email protected]
  • Call us/whatsapp: +86 13355741031
  • Chat with us: Live chat support available on our website