Inconel 718 Sheet / Plate / Coil
Inconel 718 is a nickel-chromium superalloy strengthened by niobium and molybdenum additions, renowned for its exceptional high-temperature strength, corrosion resistance, and weldability. As a leading Inconel 718 Sheet/Plate/Coil manufacturer, Huaxiao-Alloy supplies this alloy under the following designations:
- UNS N07718
- EN 2.4668
- W. Nr. 2.4668
Huaxiao-Alloy’s Inconel 718 products comply with rigorous international standards for aerospace, oil & gas, and industrial applications:
- ASTM B637 (Bar/Coil)
- ASTM B670 (Plate/Sheet)
- ASME SB637
- AMS 5662/AMS 5663
- DIN 17752
Our Inconel 718 Plate supplier team adheres to certifications including ISO 9001, AS9100, and NADCAP, ensuring aerospace-grade quality and traceability.
Available Product Specifications
| Product Form | Thickness (mm) | Width (mm) | Length (mm) | Surface Finish |
|---|---|---|---|---|
| Sheet | 0.5–30 | 800–2500 | 2000–6000 | Cold-rolled, Annealed |
| Plate | 5–150 | 1500–3500 | 3000–12000 | Hot-rolled, Pickled |
| Coil | 0.5–8 | 400–1500 | Custom | Annealed, Polished |
Custom dimensions and tolerances are available upon request from this Inconel 718 Coil manufacturer.
Mechanical Properties
Inconel 718 delivers outstanding performance in extreme environments:
- Tensile Strength: 1350–1450 MPa
- Yield Strength (0.2% Offset): 1030–1170 MPa
- Elongation: 12–20%
- Hardness: 330–410 HB
- Density: 8.19 g/cm³
These properties make Huaxiao-Alloy’s Inconel 718 Sheet ideal for jet engines, gas turbines, and downhole tools.
Chemical Composition
| Element | Ni | Cr | Fe | Nb+Ta | Mo | Ti | Al | C | Mn |
|---|---|---|---|---|---|---|---|---|---|
| **% Content** | 50–55 | 17–21 | Bal. | 4.75–5.5 | 2.8–3.3 | 0.65–1.15 | 0.2–0.8 | ≤0.08 | ≤0.35 |
The niobium and molybdenum additions enable precipitation hardening, a hallmark of Huaxiao-Alloy’s Inconel 718 Plate.
Cross-National Designations
| Country | Standard | Equivalent Grade |
|---|---|---|
| USA | ASTM/ASME | UNS N07718 |
| Europe | EN | 2.4668 |
| Japan | JIS | NCF 718 |
| Germany | DIN | W. Nr. 2.4668 |
| China | GB | GH4169 |
As a global Inconel 718 Sheet supplier, we ensure compliance with regional specifications for seamless integration into your projects.
Key Characteristics
- High-Temperature Stability: Retains strength up to 700°C (1292°F) under continuous load.
- Corrosion Resistance: Excellent resistance to pitting, crevice corrosion, and oxidation.
- Weldability: Compatible with TIG, MIG, and electron beam welding.
- Fatigue Resistance: Performs under cyclic loading in extreme environments.
- Age-Hardenable: Achieves peak strength through heat treatment.
These attributes position Huaxiao-Alloy’s Inconel 718 Coil as a top choice for aerospace and energy sectors.
Applications
- Aerospace: Turbine blades, compressor discs, rocket motor casings.
- Oil & Gas: Downhole tools, wellhead components, subsea equipment.
- Power Generation: Gas turbine rotors, steam turbine blades, nuclear reactor parts.
- Chemical Processing: Heat exchangers, reactors, and high-pressure valves.
- Automotive: Turbocharger components, exhaust systems.
Trust Huaxiao-Alloy, a premier Inconel 718 Plate manufacturer, for materials that withstand extreme operational challenges.
Why Choose Huaxiao-Alloy?
- Industry Leadership: 25+ years of expertise in high-performance alloy production.
- End-to-End Solutions: Precision machining, heat treatment, and non-destructive testing (NDT).
- Certified Quality: Full traceability with Mill Test Certificates (MTCs) and 3.1/3.2 inspection reports.
- Global Logistics: Efficient shipping to 60+ countries via air, sea, or land.
- Sustainability: Eco-conscious manufacturing aligned with ISO 14001 standards.
Our Inconel 718 Sheet supplier team provides 24/7 technical support, including material selection and application engineering.
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FAQs
Solution annealing at 950–980°C (1742–1796°F) followed by aging at 720°C (1328°F) optimizes strength and corrosion resistance.
Yes, all Inconel 718 products are certified for sour service per NACE MR0175/ISO 15156.
Yes, it can be cold-formed, but post-forming heat treatment is recommended to restore properties.
Inconel 718 offers higher strength (yield strength ~1100 MPa vs. 550 MPa for 625) due to its precipitation-hardening capability.
Standard stock items ship within 2–3 weeks; custom orders require 6–8 weeks for processing and testing.
