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High-Strength Inconel 718 Nickel Alloy Plate Aerospace & Industrial Grade
| Lugar de origem | China |
|---|---|
| Marca | DELTA |
| Certificação | ISO |
| Número do modelo | inconel 718 |
| Quantidade de ordem mínima | 500 kgs |
| Preço | 22 - 30 USD/Kg |
| Detalhes da embalagem | Embalagem padrão para exportação |
| Tempo de entrega | 5 - 12 dias com base na quantidade |
| Termos de pagamento | L/C, T/T, Western Union |
| Habilidade da fonte | 3 toneladas por semana |
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xDetalhes do produto
| Produtos | Folha & placa da liga de níquel | Nota | inconel 718 |
|---|---|---|---|
| Grossura | 0.5 - 30.0mm | Tamanho padrão | 1000*2000mm 1219*2438mm |
| Padrão | ASTM EN | Serviço | Corte |
| Porta de carregamento | Porto de Xangai | Superfície | 2B NÃO.1 |
Descrição de produto
High-Strength Inconel 718 Nickel Alloy Plate Aerospace & Industrial Grade
Products Specification
| Products Name | Inconel 718 Nickel Alloy Sheet Plate |
| Thickness | Cold rolled: 0.5 - 3.0mm Hot rolled 4.0 - 30.0mm |
| Standard Size | 1000*2000mm 1219*2438mm 1219*3048mm 1500*6000mm |
| Surface | 2B NO.1 |
| MOQ | 50 kgs |
| Service | Cutting, Surface Finishing |
| Packing | Waterproof paper and wooden pallets |
| Loading Port | Shanghai Port |
| Price term | FOB CFR CIF EXW |
| Payment term | 30% TT in advance , 70% TT balance against copy of B/L |
| Main Grade | Hastelloy C22 C4 X C276 G35 |
| Monel 400 K500 | |
| Incoloy 800 800H 800HT 825 925 | |
| Inconel 600 601 617 625 716 718 | |
| Stainless Steel Grade | 201 202 301 304L 309S 310S 316L 316Ti 317L 321 347 409L 410 410S 420J1 420J2 430 431 436L 439 440A/B/C 441 443 444 2205 2507 904L 254SMO 253MA |
High-Strength Inconel 718 Nickel Alloy Plate – Aerospace & Industrial Grade
Inconel 718 is a precipitation-hardenable nickel-chromium superalloy renowned for its exceptional mechanical strength, corrosion resistance, and performance across extreme temperature ranges—from cryogenic conditions (-253°C / -423°F) up to 704°C (1300°F). Engineered for the most demanding applications in aerospace, oil & gas, nuclear energy, and chemical processing industries, Inconel 718 nickel alloy plate offers an unmatched combination of fabricability, weldability, and structural integrity under stress.
This product information page provides comprehensive technical specifications, material standards, physical and mechanical properties, common applications, and processing guidelines for aerospace- and industrial-grade Inconel 718 plate, ensuring engineers, procurement specialists, and manufacturers can confidently select this high-performance material for critical components.
Why Choose Inconel 718 Plate?
Inconel 718 stands out among nickel-based superalloys due to its unique composition—primarily nickel (50–55%), chromium (17–21%), iron (balance), with strategic additions of niobium (4.75–5.5%) and molybdenum (2.8–3.3%) that enable gamma-double-prime (γ″) and gamma-prime (γ′) precipitation hardening. This microstructure delivers:
- Outstanding tensile, fatigue, creep, and rupture strength at elevated temperatures
- Excellent resistance to oxidation, carburization, and sulfidation up to 1000°C
- Superior corrosion resistance in acidic, alkaline, seawater, and chloride-rich environments
- Good weldability with minimal risk of post-weld cracking
- Stable mechanical properties from cryogenic to high-temperature service
These attributes make Inconel 718 plate the material of choice for jet engines, rocket motors, pressure vessels, downhole tools, and high-stress structural components where failure is not an option.
Material Standards & Designations
Inconel 718 plate is manufactured to stringent international specifications to ensure consistency and reliability. Common standards include:
| Standard Type | Specification |
|---|---|
| UNS | N07718 |
| Werkstoff Number | 2.4668 |
| Common Names | Alloy 718, GH4169, Nickel 718 |
| ASTM | B670 (sheet/plate) |
| AMS (Aerospace Material Specifications) | AMS 5596, AMS 5662, AMS 5663 |
| ASME | Section II, Case 2222-1 |
| NACE | MR0175 / ISO 15156 (for sour service) |
All plates are typically supplied in solution-annealed and aged (precipitation-hardened) condition unless otherwise specified, ensuring optimal mechanical performance.
Chemical Composition (Weight %)
The precise chemistry of Inconel 718 is tightly controlled to achieve its superior properties:
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 50.0 – 55.0 |
| Chromium (Cr) | 17.0 – 21.0 |
| Iron (Fe) | Balance |
| Niobium (Nb) + Tantalum (Ta) | 4.75 – 5.50 |
| Molybdenum (Mo) | 2.8 – 3.3 |
| Titanium (Ti) | 0.65 – 1.15 |
| Aluminum (Al) | 0.20 – 0.80 |
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 0.35 |
| Silicon (Si) | ≤ 0.35 |
| Sulfur (S) | ≤ 0.015 |
| Phosphorus (P) | ≤ 0.015 |
| Copper (Cu) | ≤ 0.30 |
| Cobalt (Co) | ≤ 1.00 |
Note: Nb is the key strengthening element, forming stable γ″ (Ni₃Nb) precipitates during aging.
Physical Properties
| Property | Value |
|---|---|
| Density | 8.19 g/cm³ (0.296 lb/in³) |
| Melting Range | 1260–1336°C (2300–2437°F) |
| Thermal Conductivity (100°C) | 11.4 W/m·K |
| Specific Heat (20–100°C) | 435 J/kg·K |
| Electrical Resistivity (20°C) | 1.25 µΩ·m |
| Mean Coefficient of Thermal Expansion (20–100°C) | 12.7 × 10⁻⁶ /°C |
These properties support dimensional stability during thermal cycling—critical in turbine and combustion chamber applications.
Mechanical Properties (Room Temperature, Aged Condition)
Typical minimum values per ASTM B670 and AMS 5596:
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength | ≥ 1275 MPa | ≥ 185 ksi |
| Yield Strength (0.2% offset) | ≥ 1035 MPa | ≥ 150 ksi |
| Elongation | ≥ 20% | ≥ 20% |
| Hardness | 36–46 HRC | — |
At 650°C (1200°F), tensile strength remains above 1035 MPa (150 ksi), demonstrating exceptional high-temperature retention.
Available Plate Dimensions & Tolerances
Inconel 718 plate is available in a wide range of thicknesses, widths, and lengths to meet diverse engineering needs:
| Thickness Range | Standard Tolerances (per ASTM B670) |
|---|---|
| 0.5 – 3.0 mm | ±0.05 mm |
| 3.0 – 10.0 mm | ±0.10 mm |
| 10.0 – 50.0 mm | ±0.15 mm |
| >50.0 mm | Custom tolerances available |
- Widths: 600 mm to 2000 mm
- Lengths: 1000 mm to 6000 mm (custom cut-to-size options available)
- Surface Finish: Hot-rolled, cold-rolled, pickled, or polished (as per application requirements)
- Certification: Mill Test Reports (MTRs) with full traceability (heat number, chemical analysis, mechanical test data)
Key Applications
Aerospace Industry
- Jet engine compressor discs, blades, and casings
- Turbine rotors and afterburner components
- Rocket thrust chambers and fuel system parts
- Landing gear and high-speed airframe structures
Oil & Gas / Energy
- Downhole wellhead components
- Subsea manifolds and Christmas trees
- High-pressure valves and fasteners in sour (H₂S) environments
- Nuclear reactor core internals
Industrial & Chemical Processing
- Cryogenic storage tanks (LNG, liquid oxygen)
- Heat exchangers in corrosive media
- Pollution control systems (e.g., flue gas desulfurization)
- High-temperature furnace fixtures
Fabrication & Welding Guidelines
Inconel 718 plate is highly fabricable using standard shop practices:
- Machining: Use rigid setups, low cutting speeds, and high feed rates. Carbide tools recommended.
- Forming: Can be cold-formed in annealed condition; hot forming may be required for severe bends.
- Welding: Excellent weldability via GTAW (TIG), GMAW (MIG), EB, and resistance welding.
- Filler Metal: ERNiFeCr-2 (AWS A5.14) or AMS 5832
- Preheat: Not required (room temperature acceptable)
- Interpass Temp: Keep below 93°C (200°F)
- Post-Weld Heat Treatment (PWHT): Full solution anneal (954–982°C) followed by aging (718°C for 8 hrs, furnace cool to 621°C, hold 8 hrs, then air cool) for maximum strength
Avoid oxy-acetylene and submerged arc welding (SAW) due to excessive heat input and cracking risk.
Quality Assurance & Traceability
Every batch of Inconel 718 plate undergoes rigorous quality control:
- Spectrometric chemical analysis
- Ultrasonic testing (UT) for internal defects (per AMS 2631 or customer request)
- Mechanical testing per lot
- Full documentation compliant with AS9100 (aerospace) and ISO 9001 standards
Lot traceability ensures compliance with FAA, EASA, API, and NORSOK requirements.
Conclusion: The Gold Standard in Superalloy Plates
For mission-critical applications demanding high strength, corrosion resistance, and thermal stability, Inconel 718 nickel alloy plate remains the industry benchmark. Its proven performance in the harshest environments—combined with global material standards, reliable supply chains, and advanced manufacturing capabilities—makes it indispensable across aerospace, defense, energy, and industrial sectors.
Whether you're designing a next-generation turbine blade or a deep-sea valve for offshore drilling, Inconel 718 plate delivers the confidence that your component will perform reliably under extreme stress, temperature, and corrosion.
Contact us today for custom dimensions, certifications, or technical support. We supply certified Inconel 718 plate in full compliance with AMS, ASTM, and NACE standards—ready for immediate shipment worldwide.
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