Chung Metal provides Inconel 718 Forgings, a nickel-chromium precipitation-hardenable superalloy designed for high strength, toughness, and creep resistance in high temperature and structure components. Forging enhances grain structure, toughness, and cyclic and high temperature reliability. The alloy 718 forged parts are aged and heat treated to provide optimum properties, employed widely in aerospace, gas turbine, and power generation applications where high performance and stressed life are needed. Our forgings are made with attention to process control, mechanical consistency, and dimensional accuracy.
718 alloy composition consists of ~50‑55% nickel, ~17‑21% chromium, ~2.8‑3.3% molybdenum, ~4.75‑5.50% niobium (columbium) + tantalum, with smaller quantities of titanium and aluminum. Carbon and the minor elements are closely controlled. In aged (peak) forged condition, tensile strength typically above ~1,200‑1,400 MPa, yield strength ~800‑1,100 MPa, elongation ~10‑25% based on thickness of section. Very good fatigue strength, good toughness, and corrosion resistance. Strength maintained at elevated temperature (~650‑700 °C), good weldability with good practice.
Specifications ASTM B637 / ASME SB637, AMS 5662, AMS 5663, AMS 5664, GE B50TF15
Flat bar blocks up to 27″ width and 15,000 lbs.
Cylinders and sleeves up to 50″ maximum O.D. and 65″ maximum length
Discs and hubs up to 50″ diameter and 20,000 lbs.
Rolled, hand forged or mandrel forged rings up to 84″ maximum O.D. and 40″ maximum length
Rounds, shafts and step shafts up to 144″ maximum length and 20,000 lbs.
| C | Mn | P | S | Si | Cr | Ni | Mo | Cb | Ta | Ti | Al | Co | B | Cu |
| 0.08 | 0.35 | 0.015 | 0.015 | 0.35 | 17-21 | 50-55 | 2.8-3.30 | 4.75-5.50 | 0.05 | 0.65-1.15 | 0.20-0.80 | 1.00 | 0.006 | 0.30 |
| Ultimate Tensile Strength, psi | .2% Yield Strength psi | Elongation % | Hardness Rockwell B |
| 135,000 | 70,000 | 45 | 100 |
| STANDARD | UNS | WNR. |
| Inconel 718 | N07718 | 2.4668 |
To determine if Inconel 718 forgings meet your specific needs, assess their strength, corrosion resistance, and high-temperature performance against your application requirements. Consult with a supplier to ensure they meet the necessary specifications and certifications for your intended use.
Inconel 718 forgings are typically processed through hot working, which involves heating the material to a high temperature, followed by forging and shaping. The process is followed by heat treatment to enhance mechanical properties, including solution annealing and aging.
The ideal temperature range for forging Inconel 718 is between 1,800°F (982°C) and 2,100°F (1,149°C). This range ensures optimal workability and prevents material degradation during the forging process.
Inconel 718 Forgings are applied to high-stressed structural parts: turbine discs, shafts, couplings, high pressure connectors, fasteners, compressor rotors, and other hardware of aerospace engines and high performance industrial turbines. In nuclear reactors, oil & gas, and chemical plants where there is high temperature, pressure, and mechanical fatigue. Forged 718 components are the choice where grain integrity and fracture strength are critical, especially in safety-related components.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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