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Precision-Rolled Inconel 718 Plate and Sheet Corrosion & Heat Resistant Nickel Alloy
| Plaats van herkomst | China |
|---|---|
| Merknaam | DELTA |
| Certificering | ISO |
| Modelnummer | inconel 718 |
| Min. bestelaantal | 500 kg |
| Prijs | 22 - 30 USD/Kg |
| Verpakking Details | Standaardverpakking voor export |
| Levertijd | 5 - 12 dagen op basis van de hoeveelheid |
| Betalingscondities | L/C, T/T, Western Union |
| Levering vermogen | 3 ton per week |
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xProductdetails
| Producten | Het Blad & de Plaat van de nikkellegering | Cijfer | inconel 718 |
|---|---|---|---|
| Dikte | 0.5 - 30.0mm | Standaard maat | 1000*2000mm 1219*2438mm |
| Standaard | Astm en | Dienst | Snijden |
| Laadhaven | Shanghai -haven | Oppervlak | 2B NO.1 |
Productomschrijving
Precision-Rolled Inconel 718 Plate and Sheet Corrosion & Heat Resistant Nickel Alloy
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 |
Precision-Rolled Inconel 718 Plate and Sheet – Corrosion & Heat Resistant Nickel Alloy
Inconel 718 is a premium nickel-chromium-based superalloy engineered for extreme environments where resistance to corrosion, oxidation, and high-temperature mechanical degradation is non-negotiable. When processed through precision rolling techniques, Inconel 718 plate and sheet achieve exceptional dimensional accuracy, uniform microstructure, and enhanced surface integrity—making them ideal for aerospace turbines, nuclear reactors, downhole oil & gas tools, and advanced chemical processing equipment.
This product overview details the composition, properties, standards, applications, and advantages of precision-rolled Inconel 718 plate and sheet, optimized for performance-critical industries requiring tight tolerances and long-term reliability.
Why Precision Rolling Matters
Standard hot- or cold-rolled nickel alloy products may exhibit thickness variations, surface imperfections, or inconsistent grain flow that compromise performance in high-stress applications. Precision rolling—a controlled cold-working process followed by stress-relief or aging heat treatments—delivers:
- Tighter thickness tolerances (±0.02 mm achievable)
- Superior flatness and surface finish (Ra ≤ 0.8 µm possible)
- Enhanced mechanical uniformity across the entire sheet/plate
- Improved fatigue and creep resistance due to refined grain structure
- Reduced need for secondary machining, lowering production costs
Material Standards & Designations
Precision-rolled Inconel 718 meets or exceeds global specifications for critical applications:
| Standard | Specification |
|---|---|
| UNS Number | N07718 |
| Werkstoff No. | 2.4668 |
| Common Names | Alloy 718, GH4169, Nickel 718 |
| ASTM | B670 (plate/sheet), B637 (bar/forgings) |
| AMS (Aerospace) | AMS 5596 (sheet), AMS 5662/5663 (bar), AMS 5832 (welding wire) |
| ASME | Section II, Part D; Boiler & Pressure Vessel Code |
| NACE MR0175 / ISO 15156 | Qualified for sour service in oil & gas |
Chemical Composition (Weight %)
The strength and stability of Inconel 718 stem from its precisely balanced chemistry:
| Element | Typical Range (%) |
|---|---|
| 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 |
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 | 1.25 µΩ·m |
| Coefficient of Thermal Expansion (20–100°C) | 12.7 × 10⁻⁶ /°C |
| Modulus of Elasticity | 200 GPa (29 × 10⁶ psi) |
Excellent thermal stability ensures minimal distortion during rapid heating/cooling cycles—critical in jet engines and rocket propulsion systems.
Mechanical Properties (Aged Condition – ASTM B670 / 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 | — |
| Creep Rupture Strength (650°C, 100 hrs) | ≥ 690 MPa | ≥ 100 ksi |
Even at 704°C (1300°F), Inconel 718 retains over 70% of its room-temperature strength.
Available Forms & Dimensions (Precision-Rolled)
Sheet
- Thickness: 0.1 mm to 6.0 mm
- Width: up to 1500 mm
- Length: up to 3000 mm
- Tolerances: ±0.02 mm (for thin gauges <1.0 mm)
- Surface Finish: Bright annealed, 2B, BA, or custom polished
Plate
- Thickness: 6.0 mm to 100+ mm
- Width: 1000–2000 mm
- Length: 2000–6000 mm
- Flatness: ≤ 2 mm/m (standard); ≤ 0.5 mm/m (precision grade)
Custom cutting (laser, waterjet, shearing) and edge conditioning available.
Corrosion & Oxidation Resistance
Inconel 718 excels in aggressive environments:
- Oxidation Resistance: Stable up to 980°C (1800°F) in air
- Pitting & Crevice Corrosion: Excellent in seawater and chloride solutions
- Acid Resistance: Performs well in sulfuric, phosphoric, and organic acids
- Sour Service: Compliant with NACE MR0175 for H₂S-containing oil & gas wells
- Stress Corrosion Cracking (SCC): Highly resistant in caustic and marine atmospheres
This makes it suitable for offshore platforms, chemical reactors, flue gas scrubbers, and desalination plants.
Key Applications
Aerospace & Defense
- Turbine discs, blades, and casings
- Afterburner components and thrust reversers
- Missile and rocket motor housings
- High-speed airframes and landing gear fittings
Energy & Oil & Gas
- Downhole safety valves and packers
- Subsea control modules and manifolds
- Nuclear fuel element spacers and core supports
- Geothermal well casings
Industrial & Medical
- Cryogenic tanks (liquid nitrogen/oxygen)
- High-temperature furnace fixtures
- Precision springs and fasteners
- Biocompatible surgical instrument components
Fabrication Guidelines
Machining
- Use carbide or ceramic tooling
- Low cutting speeds (10–30 m/min), high feed rates
- Copious coolant to manage work hardening
Forming
- Best performed in solution-annealed condition
- Springback must be accounted for in bending operations
- Minimum bend radius: 2× material thickness
Welding
- Preferred methods: GTAW (TIG), GMAW (MIG), EBW
- Filler metal: ERNiFeCr-2 (AWS A5.14) or matching composition
- No preheat required
- Post-weld aging recommended for full strength recovery
- Avoid excessive heat input to prevent liquation cracking
Quality Assurance
Every lot of precision-rolled Inconel 718 undergoes:
- Spectrometric chemical verification
- Tensile and hardness testing
- Ultrasonic inspection (per AMS 2631 or customer spec)
- Surface defect screening (eddy current or visual)
- Full documentation per EN 10204 3.1 or 3.2
Certifications include AS9100 (aerospace), ISO 9001, and PED 2014/68/EU compliance.
Conclusion
Precision-rolled Inconel 718 plate and sheet represent the pinnacle of nickel superalloy technology—combining exceptional heat resistance, unmatched corrosion performance, and micron-level dimensional control. Whether your application demands reliability at -253°C in space or 700°C in a combustion chamber, this material delivers consistent, certified performance under the most punishing conditions.
Contact us for technical data sheets, sample requests, or custom precision-rolled Inconel 718 in sheet or plate form—available with full certification and global shipping.
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