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PRODUCTS
Product Details
Inconel 718
Inconel 718 is a high-strength nickel-chromium alloy offering excellent corrosion resistance, outstanding mechanical properties, and exceptional strength at elevated temperatures in demanding environments.
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Category
Nickel Alloy
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Grade
Inconel 718 / UNS N07718
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Standard
ASTM B670 / AMS 5596 / AMS 5662 / AMS 5663
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Product Form
Plate / Sheet / Bar / Rod / Wire / Forging / Ring
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Thickness
0.5–100 mm
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Width
1000–2500 mm
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Length
2000–6000 mm
Features
Inconel 718 is a precipitation-hardenable nickel-chromium alloy containing iron, niobium and molybdenum, together with controlled additions of titanium and aluminum. The alloy combines high strength with good corrosion resistance and maintains reliable mechanical properties across a broad temperature range.
One of the key characteristics of Inconel 718 is its ability to develop high strength through precipitation hardening while retaining good fabrication and welding characteristics. It also provides excellent fatigue and creep-rupture performance, making it particularly suitable for components exposed to high mechanical loads and elevated operating temperatures.
Inconel 718 is commonly supplied in plate, sheet, bar, rod, wire, forging and ring forms for aerospace, power generation, oil and gas, nuclear and other demanding engineering applications.
Surface Finish | Pickled / Bright / Ground / Polished / Machined |
Technique | Hot Rolled / Cold Rolled / Forged / Solution Treated / Age Hardened |
Applications | Aerospace Engines, Gas Turbines, Rocket Components, Fasteners, Oil & Gas Equipment, Nuclear Components |
Excellent strength at elevated temperatures
High fatigue and creep-rupture strength
Good corrosion and oxidation resistance
Excellent precipitation-hardening response
Good weldability for a high-strength nickel alloy
Good resistance to post-weld cracking
Suitable for highly stressed structural components
Reliable performance under demanding thermal and mechanical conditions
Chemical Composition (%)
Mechanical Properties (Typical)
Element | Composition (%) | Element | Composition (%) |
Ni | 50.00–55.00 | C | ≤ 0.08 |
Cr | 17.00–21.00 | Mn | ≤ 0.35 |
Fe | Balance | Si | ≤ 0.35 |
Nb + Ta | 4.75–5.50 | Cu | ≤ 0.30 |
Mo | 2.80–3.30 | P | ≤ 0.015 |
Ti | 0.65–1.15 | S | ≤ 0.015 |
Al | 0.20–0.80 | B | ≤ 0.006 |
Co | ≤ 1.00 |
Property | Typical Value |
Tensile Strength | Approx. 1,375 MPa |
Yield Strength (0.2% Offset) | Approx. 1,100 MPa |
Elongation | Approx. 25% |
Density | 8.19 g/cm³ |
Melting Range | 1,260–1,336°C |