Premium Inconel 718 Forged Round Components | ASTM B637 Compliant
Inconel 718 Forged Round Discs | Aerospace-Grade Superalloy | Precision Components
Premium Inconel 718 forged round components are high-performance nickel-based alloy forgings manufactured in full compliance with ASTM B637 requirements. Designed for extreme service environments, these forged rounds deliver outstanding strength, fatigue resistance, and corrosion performance across a wide temperature range.
Produced through controlled hot forging and precision heat treatment, Inconel 718 forged round components exhibit a dense, uniform microstructure with excellent mechanical consistency, making them an ideal choice for critical load-bearing and high-reliability applications.
Key Material Advantages
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Exceptional Strength from Cryogenic to 650°C
Maintains high tensile and yield strength at both low and elevated temperatures due to γ″ (Ni₃Nb) precipitation strengthening. -
Superior Fatigue and Creep Resistance
Forged grain flow significantly improves resistance to cyclic loading and long-term stress exposure. -
Excellent Corrosion and Oxidation Resistance
Performs reliably in aggressive environments including high-temperature oxidation, chlorides, and acidic media. -
High Structural Integrity
Forging eliminates internal defects commonly associated with cast products, ensuring superior reliability for safety-critical components.
ASTM B637 Standard
The ASTM B637 standard mainly covers non-precipitating hardened nickel-based high-temperature alloys. Among them, the most typical and widely used one is Inconel 718. Additionally, alloys such as Inconel X-750 and Inconel 625 are also included.
Main application fields:
Aerospace: Key hot-end components of jet engines, such as turbine discs, compressor discs, blades, shafts, and fasteners.
Energy industry: Turbine discs, blades and combustion chamber components of gas turbines.
High-performance field: Any situation where materials need to maintain high strength, resistance to creep, and excellent corrosion resistance at high temperatures.
Chemical Composition:
| Element | Ni | Cr | S | C | Mn | Si | Mo | Cu | Co | Al | Nb | B | P |
| Minimum(%) | 50 | 17 | - | - | - | - | 2.8 | - | - | 0.2 | 4.75 | - | - |
| Max(%) | 55 | 21 | 0.015 | 0.08 | 0.35 | 0.35 | 3.3 | 0.3 | 1.0 | 0.8 | 5.5 | 0.006 | 0.015 |
Our QC Activities and Test Methods:
| Chemical Analysis | ASTM E1473ensile | Test | ASTM E8 |
| Hardness Test | ASTM E 10,E 18 | PMl Examination | DINGSCO SOP |
| Ultrasonic NDT | BS EN 10228 | Liquid Penetrant NDT | ASTM E 165 |
| Dimensional and inspection | DINGSCO SOP | Roughness Test | DINGSCO SOP |
| Impact Test | ASTM E 23 | Low Temperature lmpact Test | ASTM E 23 |
| Creep and Stress Rupture Test | ASTM E 139 | Hydrogen Induced Cracking Test | NACE TM-0284 * |
| Inter Granular Corrosion Test | ASTM A 262 * | Sulfide Stress Corrosion Cracking Test | NACE TM-0177 * |
| Pitting and Crevice Corrosion Test | ASTM G 48 * | Macro Etching Test | ASTM E 340* |
| Grain Size Test | ASTM E 112 * |
* Done by state own third party laboratory
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