Inconel 718
Inconel 718
Apar Alloys offers Inconel 718, a precipitation-hardened nickel-chromium alloy designed for exceptional strength, high-temperature stability, and outstanding corrosion resistance. Known for its ability to maintain mechanical integrity under extreme heat and stress, Inconel 718 is widely used in aerospace, power generation, oil & gas, and high-performance engineering applications. Its excellent weldability, combined with very high tensile and creep-rupture strength, makes it one of the most reliable alloys for severe service conditions.
Inconel 718 derives its superior strength from niobium and molybdenum additions, along with precipitation hardening through controlled heat treatment. Apar Alloys is a trusted Supplier and Stockist of Inconel 718, offering quality-certified material that delivers long-term durability, structural stability, and excellent resistance to oxidation and corrosive environments. This alloy performs exceptionally well across a broad temperature range, from cryogenic conditions up to 704°C.
Specifications
| Grade | AISI | UNS | ASTM A276 / A479 | ASTM A182 | EN (W-Nr) | DIN Spec |
|---|---|---|---|---|---|---|
| Inconel 718 | — | N07718 | ASTM B637 | ASTM B637 | 2.4668 | Inconel 718 |
General Characteristics
Nickel-Chromium-Molybdenum-Niobium precipitation-hardening alloy
Exceptional tensile, creep, and rupture strength
Superior oxidation and corrosion resistance at high temperatures
Excellent weldability with minimal cracking tendency
Stable mechanical properties from cryogenic to elevated temperatures
Ideal for aerospace, power generation, and high-stress mechanical systems
Chemical Composition (nominal) %
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | Nb + Ta | Ti | Al | Fe |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inconel 718 | ≤0.08 | ≤0.35 | ≤0.35 | ≤0.015 | ≤0.015 | 17.0–21.0 | 50.0–55.0 | 2.80–3.30 | 4.75–5.50 | 0.65–1.15 | 0.20–0.80 | Balance |
Applications
Jet engine components, turbine discs, and rotor blades
Gas turbine parts and power generation equipment
High-pressure bolting, fasteners, and structural hardware
Oil & gas downhole tools, valves, and completion equipment
Cryogenic storage tanks and structural components
Aerospace components requiring high strength at elevated temperatures
Advantages
- Extremely high tensile, fatigue, and creep-rupture strength
- Excellent resistance to oxidation and corrosive environments
- Precipitation-hardened for superior high-temperature performance
- Outstanding weldability compared to other high-strength alloys
- Retains strength and ductility across a wide temperature range
- Long service life with minimal maintenance in demanding applications
Mechanical Properties (Typical at Room Temperature)
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 1240 – 1380 |
| Yield Strength (MPa) | 1030 – 1100 |
| Elongation (%) | 12 – 20 |
| Hardness | 330 – 450 HB |
| Operating Temperature Range | −250°C to 704°C |
Why Choose Apar Alloys
Reliable Supplier & Stockist
Ready-to-dispatch inventory for various industrial requirements.
Global Sourcing Network
Materials procured from reputed international mills for consistent quality.
Strict Quality Assurance
Every batch undergoes thorough testing, inspection, and certification.
Custom Sizes & Finishes
Tailor-made dimensions, cuts, and finishes to meet project needs.
Competitive Pricing & Timely Delivery
Cost-effective solutions with on-time dispatch.
Technical Expertise & Support
Professional guidance from selection to final application.
Get in Touch
Contact Us
Looking for a trusted source for Inconel 718 materials? Contact Apar Alloys today for detailed specifications, custom supply solutions, or competitive pricing for Inconel 718 Bars, Plates, Sheets, Pipes, and Precision Components.
[Call] +91 98333 89128
301, 3rd floor, A WING, Krishvi Escape, Near Vinay Health Home, Fanaswadi Bhuleshwar, Mumbai - 400002.
Send Mail
