‌Inconel 718 Forged Round Discs | Aerospace-Grade Superalloy | Precision Components

NickInconel 718 (UNS N07718 / W.Nr.2.4668) forged discs are high-performance nickel-chromium-niobium alloy components, engineered via precision controlled forging and optimized heat treatment for extreme high-stress, moderate-to-high temperature service. As a precipitation-hardened superalloy, its core strength comes from the formation of fine γ'' (Ni₃Nb) and secondary γ' (Ni₃Al/Ti) strengthening phases, delivering unrivaled tensile strength, fatigue resistance, creep/rupture performance and structural stability.

Core Material & Performance Advantages

1. Exceptional High-Strength (Precipitation-Hardened State)

• Room temperature mechanicals: Tensile strength (Rm) 1100–1200 MPa, Yield strength (Rp0.2) ≥965 MPa, far exceeding conventional nickel alloys and stainless steels;
• High-temperature retention: Retains 70%+ of room-temperature strength at 650°C long-term service, with excellent creep and rupture resistance (1000+ hours under rated stress/heat);
• Permanent strength: Precipitation hardening forms stable intermetallic phases, no performance attenuation during long-term service, avoiding structural failure of critical components.

2. Superior Fatigue & Thermal Shock Resistance

• All-around fatigue performance: Excellent high-cycle/low-cycle fatigue and thermal fatigue resistance, adapted to the cyclic mechanical/thermal loads of rotating equipment (turbines, compressors);
• Thermal shock stability: Low thermal expansion coefficient and good thermal conductivity, reducing internal stress under rapid temperature changes, no cracking or deformation;
• High impact toughness: Charpy V-notch impact value ≥60 J at room temperature, retains high ductility even at liquid nitrogen temperature (-196°C), no cold brittleness for cryogenic applications.

Chemical Composition:

Our QC Activities and Test Methods:

* Done by state own third party laboratory