Table of Contents
- Inconel 718 Nuts Overview
- Inconel 718 Nuts Specifications
- What are Inconel 718 Nuts?
- Inconel 718 Technical Properties & Composition
- Why Industries Prefer Nickel Alloy 718 Nuts
- Types of UNS N07718 Nuts
- Key Advantages of Inconel 718 Nuts
- Key Applications of UNS N07718 Nuts
- Quality Testing & Inspection
- Global Export Markets
- Frequently Asked Questions
- Contact Aurum Overseas
Inconel 718 Nuts Suppliers & Exporters
Aurum Overseas is a high-precision Inconel 718 Nuts Supplier and specialized Inconel 718 Nuts Exporter. Inconel 718 (UNS N07718 / 2.4668) is a precipitation-hardenable nickel-chromium superalloy engineered for high-tensile aerospace turbines, downhole oilfield tooling, and extreme structural joint applications.
Precipitation hardened with niobium, titanium, and aluminum additions, Nickel Alloy 718 Nuts retain high yield strength and creep rupture performance at elevated temperatures up to 704°C (1300°F). Manufactured in full compliance with ASTM B637 UNS N07718 specifications, UNS N07718 Nuts resist strain-age cracking during welding while exhibiting resistance to post-weld cracking. As an established Inconel 718 Nuts Exporter, Aurum Overseas supplies certified high-tensile bolting solutions across the USA, Germany, UK, UAE, Saudi Arabia, and Qatar.
Inconel 718 Nuts Specifications
| Parameter | Specification / Technical Range |
|---|---|
| Material Grade | Inconel 718 / Alloy 718 / UNS N07718 |
| UNS Number | UNS N07718 |
| Werkstoff Number | 2.4668 |
| Manufacturing Standards | ASTM B637, ASME SB637, AMS 5662, AMS 5663, DIN 934, ISO 4032 |
| Size Range | M3 to M100 | 3/16" to 4" | Custom Sizes Available |
| Thread Configuration | ASME B1.1 2A/3A - 2B/3B Unified (UNC, UNF) & B1.13M 6h-6G Metric |
| Heat Treatment Conditions | Solution Annealed + Age Hardened (Precipitation Hardened) |
| Certifications | EN 10204 3.1 Material Test Certificate, NACE MR0175 / API 20F Compliant |
What are Inconel 718 Nuts?
Inconel 718 (UNS N07718) nuts are high-strength precipitation-hardenable nickel-chromium superalloy fasteners designed for extreme mechanical stress and high-temperature environments.
- High Strength: Hardened with added niobium, titanium, and aluminum, these nuts reach high tensile strength (up to 202 ksi) without becoming brittle.
- Heat & Stress Resistance: They maintain structural integrity and resist creep rupture at temperatures up to 704°C (1300°F).
- Corrosion Protection: The nickel-chromium base protects joints against oxidation, stress cracking, and pitting in harsh chemical or subsea conditions.
Inconel 718 Technical Properties & Composition
The chemical composition and mechanical properties of Inconel 718 are precisely controlled to deliver maximum precipitation-hardened tensile strength, superior creep-rupture resistance, and reliable structural integrity under extreme aerospace, oilfield, and turbomachinery service conditions.
Chemical Composition of Inconel 718 Nuts (%)
| Element | Inconel 718 (UNS N07718) |
|---|---|
| Nickel (Ni) | 50.0 - 55.0 (Balance) |
| Chromium (Cr) | 17.0 - 21.0 |
| Iron (Fe) | 19.0 min (Balance) |
| Molybdenum (Mo) | 2.80 - 3.30 |
| Columbium + Tantalum (Cb+Ta / Nb+Ta) | 4.87 - 5.20 |
| Titanium (Ti) | 0.65 - 1.15 |
| Aluminum (Al) | 0.20 - 0.80 |
| Cobalt (Co) | 1.00 max |
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 0.35 max |
| Silicon (Si) | 0.35 max |
| Phosphorus (P) | 0.015 max |
| Sulfur (S) | 0.015 max |
| Copper (Cu) | 0.30 max |
| Boron (B) | 0.006 max |
Mechanical Properties of Inconel 718 Nuts
| Property / Parameter | Room Temp (70°F / 21°C) Aged | Minimum Standard Limits |
|---|---|---|
| Density | 0.297 lb/in³ (8.19 g/cm³) | 8.19 g/cm³ |
| Melting Range | 2300°F – 2435°F (1260°C – 1336°C) | 1260°C – 1336°C |
| Ultimate Tensile Strength | 202 ksi (1392 MPa) | 135 ksi (930 MPa) min |
| 0.2% Yield Strength | 170 ksi (1172 MPa) | 70 ksi (482 MPa) min |
| Elongation (% in 2 in.) | 15% - 25% | 12% min |
| Hardness (Rockwell) | HRC 36 - 44 | HRB 100 min |
Grade Designation & Equivalent Standards
| Standard | Werkstoff Nr. | UNS | ASTM | EN Designation |
|---|---|---|---|---|
| Inconel 718 | 2.4668 | N07718 | ASTM B637 UNS N07718 | NiCr19Fe19Nb5Mo3 |
Why Industries Prefer Nickel Alloy 718 Nuts
Aerospace propulsion engineers and deepwater drilling operators select Nickel Alloy 718 Nuts when standard austenitic stainless steels or solid-solution nickel alloys lack the tensile capacity to handle severe bolt tension.
The slow precipitation-hardening response of the niobium-nickel phase allows fasteners made from ASTM B637 UNS N07718 stock to be heated and welded without post-weld cracking. As an experienced Inconel 718 Nuts Supplier, Aurum Overseas ensures precise heat-treating cycles (solution annealing followed by age hardening) so that every fastener retains high fatigue strength and stress-rupture resistance in downhole sour gas tools and gas turbine casings.
Types of UNS N07718 Nuts
Aurum Overseas supplies a comprehensive range of nickel superalloy nut configurations manufactured according to standard DIN, ASME, and ISO dimensional tolerances for multiple engineering assemblies.
Inconel 718 Hex Head Nuts
Inconel 718 Square Nuts
Inconel 718 Lock Nuts
Inconel 718 Eye Nuts
Inconel 718 Wing Nuts
Inconel 718 T Nuts
Inconel 718 Panel Nuts
Inconel 718 Coupling Nuts
Inconel 718 Dome Nuts
Key Advantages of Inconel 718 Nuts
Precipitation-Hardened Tensile Strength
Achieves yield strengths exceeding 170 ksi (1172 MPa) for high-load structural joints.
Resistance to Strain-Age Cracking
Sluggish precipitation kinetics allow stress-free welding and thermal processing.
High Creep-Rupture Strength
Retains structural stability and thread engagement under continuous stress up to 704°C (1300°F).
Sour Gas Resistance
Certified under NACE MR0175 and API 20F to resist sulfide stress cracking in high H₂S oilfield environments.
Cryogenic Toughness
Prevents brittle fracture in liquid gas handling systems operating at temperatures down to -253°C (-423°F).
Key Applications of UNS N07718 Nuts
Our Inconel 718 nuts are deployed globally in aerospace propulsion systems, downhole oil and gas tooling, turbomachinery, nuclear engineering, and cryogenic processing infrastructure.
| Industry Sector | Primary Fastener Application |
|---|---|
| Aerospace & Rocketry | Jet engine turbine rotors, rocket motor casing bolts, and thrust chamber joints |
| Oil & Gas (Downhole) | Subsea wellhead valves, safety valves, packer mandrels, and high-pressure riser bolting |
| Turbomachinery | Gas turbine tie rods, high-temperature casing flanges, and industrial land gas turbines |
| Nuclear Engineering | Spacer grids, nuclear fuel element fasteners, and high-radiation structural components |
| Cryogenic Processing | Liquefied natural gas (LNG) expansion joints and liquid hydrogen fuel tanks |
Quality Testing & Inspection
Aurum Overseas implements rigorous quality control checks for all shipments as a certified Inconel 718 Nuts Supplier and Inconel 718 Nuts Exporter.
| Test / Inspection Standard | Technical Verification Scope |
|---|---|
| Positive Material Identification (PMI) | Spectrometric verification of 50-55% Ni, Cr, Mo, and Cb+Ta chemistry |
| Hardness & Tensile Testing | Rockwell C (HRC) hardness and high-temperature tensile verification per ASTM E21 |
| Stress Rupture Testing | Stress rupture evaluation per ASTM E139 at elevated temperatures |
| Dimensional Inspection | Thread profile check (2B/3B, 6h/6G) per ASME B18.2.2 and ISO standards |
| Certifications | Traceable EN 10204 3.1 MTR with full heat-treat charts supplied with every order |
Global Export Markets
As an international Inconel 718 Nuts Exporter, Aurum Overseas delivers certified high-tensile fasteners to key industrial markets across the globe.
USA
Canada
Mexico
Germany
United
Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
UAE
Saudi
Arabia
Qatar
Kuwait
Oman
Bahrain
Frequently Asked Questions
Inconel 718 is a precipitation-hardenable alloy containing niobium and titanium that achieves significantly higher tensile (202 ksi) and yield strengths (170 ksi) through heat treatment. Inconel 625 is a solid-solution strengthened alloy optimized primarily for general corrosion and pitting resistance.
Yes. UNS N07718 nuts comply with NACE MR0175 / ISO 15156 and API 20F standards, preventing sulfide stress cracking in high H₂S petroleum extraction.
Inconel 718 fasteners maintain high tensile and creep-rupture strength up to 704°C (1300°F) and exhibit cryogenic ductility down to -253°C (-423°F).
Yes, Aurum Overseas regularly exports certified Inconel 718 fasteners across North America (USA, Canada, Mexico), South America (Brazil, Chile), and major European industrial hubs (Germany, United Kingdom, France, Italy, Netherlands, Spain, Poland).
Yes, we supply fully compliant Inconel 718 nuts to energy and marine sectors across the GCC region (UAE, Saudi Arabia, Qatar, Kuwait, Oman, Bahrain), Asia-Pacific markets (Singapore, Malaysia, Indonesia, Australia), and industrial hubs in Africa (South Africa, Nigeria, Egypt).
Contact Aurum Overseas
Aurum Overseas delivers fast response times, complete heat-treatment MTR documentation, and global export handling for aerospace and oilfield fastener demands.
Contact our technical sales team today for an immediate quote.