Inconel 718 Precision Machining Service
Inconel 718 is a high-performance nickel-based superalloy with extremely high high-temperature strength, excellent corrosion resistance and outstanding oxidation resistance.
- Perfect material manufacturing process
- Highly competitive material prices
- 15+ years of experience in high-temperature alloy processing
- Fast delivery
What is Inconel 718?
Inconel 718 is a precipitation-hardening nickel-based superalloy, also commonly known as Nickel Alloy 718, UNS N07718, and GH4169. It uses nickel as its main component, with added elements such as chromium, iron, niobium, molybdenum, titanium, and aluminum. It is strengthened through γ′(Ni₃(Al,Ti)) and γ″(Ni₃Nb) precipitation phases.
Key material properties of Inconel 718
Composition of Inconel 718
- Ni:50%-55%
- Cr:17%-21%
- Nb+Ta:4.75%-5.5%
- Ti:0.65%-1.15%
- Al:0.2%-0.8%
- Fe:margin
Physical properties of Inconel 718
- Density of Inconel 718：8.19 g/cm³
- The melting point of Inconel 718：1260 – 1336 ℃
- Inconel 718's coefficient of thermal expansion:0–100 ℃：13.0 ×10⁻⁶ /℃ 20–800 ℃：14.0 ×10⁻⁶ /℃
- Inconel 718 is non-magnetic.
Mechanical properties of Inconel 718
- Inconel 718 tensile strength：1250~1440 MPa
- Yield strength of Inconel 718：1030~1200MPa
- The hardness of Inconel 718：35–45 HRC
- High-temperature physical properties of Inconel 718 (650°C): Tensile strength: ~930 MPa; Yield strength: ~720 MPa
How to machine inconel 718?
inconel 718 cnc machining
Inconel 718 CNC machining includes CNC milling and CNC turning. Because Inconel 718 has high hardness at room temperature, the γ’ (precipitated phases of aluminum and titanium) reinforcing phase in the alloy can further increase the hardness during machining. Therefore, tool wear will increase and efficiency will decrease during machining.
Inconel 718 casting
Inconel 718, due to its excellent corrosion resistance and high-temperature properties, is used in irregularly shaped structural components in industries such as aerospace and petroleum, thus requiring casting processes. While Inconel 718 casting is technically challenging, these challenges can be effectively overcome by optimizing the casting process, controlling the alloy composition, precisely adjusting the cooling rate, and employing appropriate post-processing techniques, resulting in the production of high-quality castings.
3D printing inconel 718
3D printing (or additive manufacturing) Inconel 718 is a cutting-edge technology that can efficiently and precisely produce high-performance metal parts with complex shapes. It is particularly useful for the expensive material Inconel 718, which can significantly reduce material costs. It also enables rapid prototyping and small-batch production of complex parts and is widely used in aerospace, energy, automotive and other high-tech fields.
Inconel 718 stamping
Inconel 718 is a nickel-based superalloy. Stamping requires overcoming the characteristics of high strength, high hardness and work hardening. It is necessary to control the forming temperature and optimize the die parameters. It is mainly used in aerospace engine blades, high-temperature pressure-bearing components in nuclear power, and irregularly shaped brackets and gaskets in high-temperature valves and other fields.
Inconel 718 forging
Inconel 718 is a nickel-based superalloy. Forging it requires overcoming its high strength, high hardness, and work hardening properties. Forging temperature, deformation amount, and cooling rate must be controlled to prevent internal cracking. It is primarily used in aerospace engine discs, nuclear power plant flanges and bolts, and high-temperature components for deep-sea drilling platforms.
Stellite Welding
Stellite welding refers to the process of bonding Stellite 6, Stellite 12, Stellite 21, and other grade materials onto an Inconel 718 substrate using Plasma Transferred Arc or laser cladding. It is primarily used in the oil and gas industry for valves, valve seats, and valve disc sealing surfaces, as well as in the drilling industry for wear-resistant layers on drill bits. This significantly reduces manufacturing costs for these precious metal materials.
Manufacturing process of Inconel 718 material
Precionn is a comprehensive superalloy materials manufacturing company that integrates the research and development, smelting, forging, heat treatment, cold forming, and finished product processing of Inconel 718 materials.
smelting
Our company possesses a 50T smelting electric furnace, an LF refining furnace, a VOD furnace, and a VD furnace.
forging
Our company has a 5000T forging machine, which can form Inconel 718 bars and plates of various diameters.
Heat treatment
Inconel can meet the processing needs of customers in different industries by using different heat treatment methods. The most common method is standard double aging(Solution Treatment + Double Aging,which is suitable for most Inconel 718 bars and plates.
Hot rolling
Inconel 718 can be hot-rolled into plates, bars, profiles, or tubes of various specifications.
Flaw detection
Inconel 718 is commonly used in critical industries such as oil and gas. After our materials are manufactured, in addition to routine composition analysis using a spectrometer, we also conduct internal flaw detection to ensure the product is free of cracks and meets production safety requirements.
Why choose Precionn for Inconel 718 parts?
Excellent manufacturing capabilities
A complete manufacturing process, from raw material production, CNC machining, to finished product inspection and shipment, can be completed with high quality.
preferential material costs
Precionn possesses complete material manufacturing capabilities, capable of independently completing processes from smelting, forging, heat treatment, hot rolling, and finished product inspection..
High-quality quality management
- System Certificate:ISO 9001，IS013485，AS9100D，IATF16949
- All materials must undergo spectrometer testing and physical property testing to ensure they meet the requirements for chemical composition and physical properties.
- All forged parts and welded materials undergo flaw detection to ensure that there are no internal cracks in the materials and products.
Customized solutions
- We have excellent stamping manufacturing capabilities and can customize Inconel 718 thin parts.
- We have excellent CNC machining capabilities and can customize Inconel 718 valves and flanges.
- We have extensive experience in supermaterial welding and can customize welding of Inconel 718 valve ports and cladding welding to meet specific requirements.
Application of inconel 718 in industries
Aerospace
- Turbine Disk
- Compressor Disk
- Fasteners (high-temperature bolts, nuts, studs)
- Seal Ring
- Mount Bracket
Oil & Gas
Inconel 718 is commonly used in the oil and gas industry for high-pressure, high-corrosion, and sulfide stress cracking (SSC) applications.
- Safety valve components
- Pump & Valve Parts
- Adapters, connector rings, fasteners
Chemical Equipment / Marine Engineering
Suitable for acidic and corrosive media and high temperature and high pressure environments.
- reactor components
- Corrosion-resistant parts for seawater desalination equipment
- Corrosion-resistant pipe fittings and fasteners
Inconel 718 FAQS
We have a complete set of material manufacturing and testing equipment, capable of providing materials that meet the requirements of different national standards and achieve ATSM B637 and AMS5662 certification standards.
Inconel 718 is mainly designated globally as follows: ASTM B637, UNS N07718, DIN 17744, JIS H 4600, etc.
When machining high-temperature alloys like Inconel 718, their unique material properties (high strength, high hardness, and good corrosion resistance) typically cause significant tool wear and thermal stress. Therefore, CBN tools, ceramic tools, and TiAlN, TiCN, or AlTiN coated tools are required.
If the materials do not require customization, the fastest prototype production time is generally three days. If the materials require special customization, the prototype production time is generally 10 days.