UNS N07718 (Inconel 718) Nickel Alloy Manufacturer
Generic Name & Other Designation
Inconel 718®,Alloy 718,Nickel Alloy 718,W.Nr. 2.4668,NiCr19Fe19Nb5Mo3 , NiCr19NbMo
Available Forms and Standards of Inconel 718
Plates | Sheets | Ingots | Bars | Pipes | Tubes | Flanges | Forgings | Pipe Fittings | Strips | Wires
We also supply Inconel 718 materials for various heat exchanger components, including forged tube sheets, baffle plates, and seamless or welded heat exchanger tubes, in accordance with project requirements.
ASTM Standards：Plates, sheets & strips (ASTM B670 / B906); bars & rods (ASTM B637); seamless pipes & tubes (ASTM B983/B829); flangd & forgings (ASTM B637 / B564). AMS 5596 is available for sheet products.
EN, DIN, JIS and customized specifications available upon request.
Why Choose Us–Belnade
Direct Factory Manufacturing 
Strict Quality Control
Competitive Pricing 
Reliable Lead Time & Delivery
En 10204 3.1 & Third-Party Inspection Support 
Customized Solutions & Flexible Order Support
Product Overview UNS N07718
UNS N07718 (commonly referred to as Inconel 718 or W.Nr. 2.4668) is a precipitation-hardenable Ni-Cr-Fe superalloy, strengthened through precise additions of Nb, Mo, Ti, and Al, the alloy forms a γ” strengthening phase during heat treatment, achieving exceptional yield, tensile, and impact strength.
Engineered for extreme operating environments, UNS N07718 is widely utilized in modern industrial applications requiring resistance to severe mechanical stress, elevated temperatures, and aggressive corrosive media.
Core Highlights of Inconel 718
✅ Superior Temperature Resistance: Maintains high tensile and creep-rupture strength across extreme temperature ranges, from cryogenic -253°C up to 704°C (1300°F).
✅ Exceptional Weldability & Crack Resistance: Slow age-hardening response allows annealing and welding without spontaneous post-weld cracking, offering superior fabricability among superalloys.
✅ Outstanding Corrosion Resistance: Formulated with high chromium and nickel content, providing excellent resistance to organic/inorganic acids, oxidizing environments, and chloride stress-corrosion cracking (compliant with NACE MR0175).
✅ Comprehensive Inventory & Custom Processing: BELNADE supplies fully certified bars, plates, seamless pipes, and forgings conforming to ASTM, AMS, and ASME standards with custom cutting services.
Chemical Composition & Physical Properties of Inconel 718
1. Chemical Composition (Weight %)
Element | Ni + Co | Cr | Fe | Cu | Co | Nb + Ta | Mo | Ti | Al | C | Mn | Si | P | S |
Standard | 50.0 – 55.0 | 17.0 – 21.0 | Bal. | ≤ 0.3 | ≤ 1.0 | 4.75 – 5.50 | 2.80 – 3.30 | 0.65 – 1.15 | 0.20 – 0.80 | ≤ 0.08 | ≤ 0.35 | ≤ 0.35 | ≤ 0.015 | ≤ 0.015 |
2. Physical & Mechanical Properties
Property | Value (Metric) | Value (Imperial) | Condition / Standard |
Density | 8.19 g/cm³ | 0.296 lb/in³ | — |
Melting Range | 1260°C – 1336°C | 2300°F – 2437°F | — |
Tensile Strength (Rm) | ≥ 1240 MPa | ≥ 180 ksi | Solution + Aged |
Yield Strength (Rp0.2) | ≥ 1030 MPa | ≥ 150 ksi | Solution + Aged |
Elongation (A5) | ≥ 12% | ≥ 12% | Solution + Aged |
Hardness | 36 – 44 HRC | 36 – 44 HRC | Solution + Aged |
Typical Applications of UNS N07718
Due to its balanced mechanical integrity and corrosion resistance, UNS N07718 is heavily specified across demanding industries:
Aerospace & Defense: Liquid-fueled rocket engine components, turbine blades, gas turbine discs, thrust reversers, and high-strength fasteners.
Oil & Gas (Downhole & Offshore): Subsea wellhead tools, safety valves, polished bore receptacles, and valve shafts operating in severe sour service environments (H2S/Chloride).
Nuclear Engineering: Control rod drive mechanisms, nuclear reactor internal fasteners, and high-temperature springs.
Energy & Power Generation: High-temperature bolting, industrial gas turbine components, and specialty pump shafts.
Quality Assurance & Testing of UNS N07718
At BELNADE, every shipment undergoes rigorous quality control to ensure full compliance with international standards and technical requirements:
Certification: Material Test Certificate (MTC) supplied compliant with EN 10204 3.1.
Quality Inspections:
Positive Material Identification (PMI / XRF Analysis)
Room Temperature & High-Temperature Tensile Testing
Metallographic & Grain Size Examination
Ultrasonic Testing (UT) & Non-Destructive Testing (NDT)
Hardness Testing & Intergranular Corrosion Resistance Verification
Production Process
Certification of Belnade
Trusted UNS N07718 (Inconel 718) Supplier
Belnade specializes in supplying UNS N07718 (Inconel 718) and other high-performance nickel alloys for global industries. With reliable manufacturing resources, strict quality control, and complete material documentation including EN 10204 3.1 certificates, we support customers with stable supply and customized solutions for demanding applications.
Get in Touch with BELNADE for Quotes and Technical Inquiries
📧 Email: [email protected]
🌐 Website: www.belnade-material.com
💬 Mobile/ WhatsApp: +86 183-6997-5713