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
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
Available Product Specifications
| 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
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
Chemical Composition
| 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
Cross-National Designations
| Country | ||
|---|---|---|
| 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
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
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
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
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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.
