Inconel 718 fasteners are super strong nickel-chromium alloy fasteners made out of UNS N07718 / Werkstoff Nr. 2.4668 material. This alloy possesses high tensile strength along with high corrosion, oxidation and high-temperature strength up to 700°C. They are extensively used in aerospace, marine, oil & gas, power generation, chemical and allied industries in common forms like, Inconel Alloy 718 Hex Bolts, Nuts, Stud Bolts, Threaded Rods, U-Bolts, Washers and Custom Fasteners according to ASTM B637 UNS N07718, ASTM F2281 Inconel Alloy 718 Fastener, ASME SF2281 Inconel 718 Fasteners, AMS 5662 / AMS 5663 Bolt.
Premium Quality Inconel 718 Fasteners
We fabricate and supply super durable Incoloy 718 Fasteners for use when conventional stainless steel fasteners and alloy steel fasteners cannot meet the requirement due to high temperatures, extreme corrosive environments or extreme mechanical stresses and fatigue. These precipitation-hardened nickel alloy 718 fasteners possess extraordinary durability, fatigue strength, and long term reliability.
We are a premier Inconel 718 Fasteners Supplier and manufacture a complete range of fasteners including bolts, nuts, screws, washers, threaded rods, anchors and engineered custom fasteners required for the critical industrial applications.
The novel combination of the nickel, chromium, niobium, molybdenum, titanium, and aluminum in this alloy makes it highly resistant to oxidation, pitting, crevice corrosion and stress corrosion cracking.
What is Inconel Alloy 718?
Inconel Alloy 718 is a nickel-based super alloy which is designed to function at high stress and high temperature service applications. At low temperatures down to cryo, the mechanical properties of the super alloy continue down to approximately 700°C, and consequently this super alloy is amongst the most used super alloys within industry.
The alloy often is found specified using the following UNS N07718 Fasteners, Inconel 2.4668 Fasteners, and DIN 2.4668 Fasteners names, and this particular material offers superior fabrication and welding qualities with a good corrosion resistance.
Key Features of Inconel 718 Fasteners
- Exceptional tensile and yield strength
- Excellent fatigue and creep resistance
- Superior oxidation resistance
- Outstanding corrosion resistance
- High-temperature stability
- Excellent performance in marine environments
- Resistance to chloride stress corrosion cracking
- Long service life under extreme operating conditions
Table of Contents
- ➤ Premium Quality Inconel 718 Fasteners
- ➤ What is Inconel Alloy 718?
- ➤ Types of Inconel 718 Fasteners We Supply
- ➤ ASTM B637 UNS N07718 Fasteners Specifications
- ➤ Inconel 718 Fasteners Chemical Composition
- ➤ Inconel 718 Fasteners Mechanical Properties
- ➤ Physical Properties of Inconel 718 Fasteners
- ➤ Advantages of Inconel 718 Fasteners
- ➤ Manufacturing Process of Inconel 718 Fasteners
- ➤ Applications of UNS N07718 Fasteners
- ➤ Why Choose Our Inconel 718 Fasteners?
Types of Inconel 718 Fasteners We Supply
We are manufactures and exporter of all kinds of UNS N07718 Fasteners standard size and as per customized size.
Inconel Alloy 718 Hex Bolts
Precision manufactured Inconel Alloy 718 Hex Bolts are used in turbans, pressure vessels, offshore platforms, and in many of the aerospace assembly applications requiring tremendous strength.
Nickel Alloy 718 Hex Bolt
The Nickel Alloy 718 Hex Bolt exhibits good corrosion and high-temperature deformation properties are the most suitable fastening application.
Inconel 718 U-Bolts
High-strength Inconel 718 U-Bolts are designed for piping systems, offshore structures, marine equipment, and high-temperature support systems.
Stud Bolts and Threaded Rods
Manufactured according to international standards, these fasteners provide secure and reliable connections in pressure vessels, heat exchangers, and refinery equipment.
Nuts and Washers
Available in various configurations including hex nuts, lock nuts, heavy hex nuts, plain washers, spring washers, and custom-machined components.
Custom Forged Fasteners
We fabricate project based specific fasteners as per customer drawings and specification required for various industrial uses.
ASTM B637 UNS N07718 Fasteners Specifications
| Specification | Details |
|---|---|
| Material Grade | Inconel Alloy 718 |
| UNS Number | UNS N07718 |
| Werkstoff Number | 2.4668 |
| DIN Grade | DIN 2.4668 Fasteners |
| ASTM Standard | ASTM B637 UNS N07718 |
| Fastener Standard | ASTM F2281 Inconel Alloy 718 Fastener |
| ASME Standard | ASME SF2281 Inconel 718 Fasteners |
| Aerospace Standards | AMS 5662 / AMS 5663 Bolt |
| Form | Bolts, Nuts, Screws, Studs, Washers, U-Bolts |
| Size Range | Custom & Standard Sizes |
| Thread Types | Metric, UNC, UNF, BSW, BSF |
Inconel 718 Fasteners Chemical Composition
The chemical composition of Inconel 718 Fasteners (UNS N07718 / W.Nr. 2.4668) is carefully controlled to achieve excellent strength, oxidation resistance, and corrosion resistance in demanding environments.
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 50.00 – 55.00 |
| Chromium (Cr) | 17.00 – 21.00 |
| Iron (Fe) | Balance |
| Niobium + Tantalum (Nb + Ta) | 4.75 – 5.50 |
| Molybdenum (Mo) | 2.80 – 3.30 |
| Titanium (Ti) | 0.65 – 1.15 |
| Aluminum (Al) | 0.20 – 0.80 |
| Cobalt (Co) | ≤ 1.00 |
| Manganese (Mn) | ≤ 0.35 |
| Silicon (Si) | ≤ 0.35 |
| Carbon (C) | ≤ 0.08 |
| Copper (Cu) | ≤ 0.30 |
| Phosphorus (P) | ≤ 0.015 |
| Sulfur (S) | ≤ 0.015 |
| Boron (B) | ≤ 0.006 |
Inconel 718 Fasteners Mechanical Properties
The outstanding mechanical properties of ASTM B637 UNS N07718 Fasteners make them suitable for high-pressure, high-temperature, and aerospace applications.
| Property | Value |
|---|---|
| Tensile Strength | 1375 MPa (200 ksi) Min |
| Yield Strength (0.2% Offset) | 1035 MPa (150 ksi) Min |
| Elongation | 12% Min |
| Reduction of Area | 15% Min |
| Hardness | 36 HRC Max |
| Modulus of Elasticity | 200 GPa |
| Density | 8.19 g/cm³ |
| Melting Range | 1260 – 1336°C |
| Electrical Resistivity | 125 µΩ-cm |
| Thermal Conductivity | 11.4 W/m·K |
| Specific Heat | 435 J/kg·K |
Physical Properties of Inconel 718 Fasteners
| Property | Value |
|---|---|
| Density | 8.19 g/cm³ |
| Melting Point | 1260 – 1336°C |
| Thermal Expansion Coefficient | 13.0 µm/m°C |
| Thermal Conductivity | 11.4 W/m·K |
| Modulus of Elasticity | 200 GPa |
| Magnetic Properties | Non-Magnetic |
| Electrical Resistivity | 125 µΩ-cm |
Advantages of Inconel 718 Fasteners
Industries choose Inconel 718 Fasteners because they provide a unique combination of strength and corrosion resistance that few alloys can match.
- Excellent Mechanical Strength: High Inconel 718 has far superior mechanical strength compared to the most stainless steel grades.
- Amazing Corrosion Resistance: The UNS N07718 alloy is capable of withstanding highly aggressive chemicals, sea water, acids and even chloride containing solution.
- High Temperature Service: For traditional fasteners the integrity will fail if subjected to extreme high temperature for extended time. UNS N07718 fasteners do not fail even at this service.
- Fantastic Fatigue Strength: UNS N07718 has outstanding fatigue strength to withstand stress cycling condition (aerospace or power plant application).
- Cost Effectiveness Over Time: While the initial price of the alloy is more, the longevity of service life, and the negligible requirement of maintenance contribute to the lower lifecycle cost.
Manufacturing Process of Inconel 718 Fasteners
Applications of UNS N07718 Fasteners
Due to their exceptional mechanical and corrosion-resistant properties, ASTM B637 UNS N07718 Fasteners are used across numerous industries.
Aerospace Industry
- Jet engines
- Turbine components
- Aircraft structures
- Rocket propulsion systems
Oil & Gas Industry
- Offshore platforms
- Subsea equipment
- Wellhead systems
- Refinery units
Power Generation
- Gas turbines
- Nuclear power plants
- Steam generators
- Heat recovery systems
Chemical Processing
- Reactors
- Heat exchangers
- Pressure vessels
- Processing equipment
Marine Industry
- Shipbuilding
- Offshore structures
- Seawater handling systems
- Marine engineering projects
Why Choose Our Inconel 718 Fasteners?
As an experienced manufacturer and exporter, we focus on delivering reliable fastening solutions that meet the most demanding industrial requirements.
What Sets Us Apart?
- International quality standards compliance
- Full material traceability
- Custom manufacturing capabilities
- Competitive global pricing
- Fast delivery schedules
- Third-party inspection support
- Export packaging solutions
- Technical assistance and documentation
Whether you require standard Werkstoff Nr 2.4668 Bolts, AMS 5662 / AMS 5663 Bolt, or customized engineered fasteners, we provide solutions tailored to your project requirements.
Related Inconel Fasteners Grades
- Inconel 600 Fasteners
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- Inconel 622 Fasteners
- Inconel 625 Fasteners
- Inconel 686 Fasteners
- Inconel 690 Fasteners
- Inconel 713c Fasteners
- Inconel 718 Fasteners
- Inconel 725 Fasteners
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Frequently Asked Questions
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