Chemical composition of UNS material N07718
UNS alloy N07718 consists mainly of nickel (50-55%), chromium (17-21%), iron (rest), niobium and molybdenum, as well as small percentages of titanium and aluminum. This balanced composition allows for a unique combination of tensile strength, hardness and toughness, maintained even after specific heat treatments.
Mechanical properties and advantages
One of the distinguishing features of UNS alloy N07718 is precipitation hardening, which enables high mechanical properties without compromising machinability. Key advantages include:
- Tensile strength greater than 1200 MPa
- Stability up to 700 °C with good toughness
- Excellent fatigue resistance, ideal for components subject to cyclic stresses
- Good weldability, rare among superalloys
- High corrosion resistance in acidic and saline environments
These properties make it suitable for uses where high performance and durability are required.
Industrial applications of UNS alloy N07718
La alloy INCONEL® 718 is used in multiple critical areas, including:
- Aerospace: for turbines, crankshafts, disks and seal rings
- Energy and Oil & Gas: bolting for flanges, valves and equipment in corrosive environments
- Naval and offshore: fasteners exposed to seawater and chlorides
- Cryogenic plants: due to toughness at low temperatures
- Nuclear reactors: for resistance to radiation and thermal stresses
Its reliability characteristics make it a key material for safety components and high-risk environments.
Reference standard for UNS material N07718
The alloy is covered by many international standards, including:
- ASTM B637: specification for bars, forgings and other machined products
- UNS N07718: unified designation for international identification
- WERKSTOFF 2.4668: material code used in Europe
- AMS 5662, 5663, 5664: aerospace standards
These references ensure compatibility with international specifications for design and procurement in high-complexity contexts.
Production and supply of screws and bolts in UNS N07718
We at MF INOX specialize in the production of INCONEL® 718 screws, bolts, nuts and tie rods to customer specifications, either according to ASTM standards or to drawings. We supply:
- Hot and cold processed details,
- certified heat treatments,
- full documentation 3.1 EN 10204,
- fast service even in 24/48 hours for industrial emergencies.
Thanks to the availability of raw material and our flexible structure, we can meet the most stringent demands in terms of quality and delivery time.
