Inconel 718 (UNS N07718)
Category: INCONEL
Overview
INCONEL 718 is a high-strength, corrosion-resistant nickel chromium material used at -423° to 1300°F.
The age-hardenable alloy can be readily fabricated, even into complex parts. Its welding characteristics, especially its resistance to postweld cracking, are outstanding.
The ease and economy with which INCONEL 718 can be fabricated, combined with good tensile, fatigue, creep, and rupture strength, have resulted in its use in a wide range of applications.
Chemical Composition
| Ni | Cr | Fe | Ti | Al | Nb+Ta | Mn | Si | S | P | C | Co | Mo | Cu | |
| MIN | 50 | 17 | Bal | 0.65 | 0.2 | 4.75 | - | - | - | - | - | - | 2.8 | - |
| MAX | 55 | 21 | 1.15 | 0.8 | 5.5 | 0.35 | 0.35 | 0.015 | 0.015 | 0.08 | 1.0 | 3.3 | 0.3 |
Physical Properties
| Density | 8.23 g/cm³ |
| Melting Range | 1260-1336 ℃ |
Available Products and Specifications
| Rod, Bar, Wire, and Forging Stock | ASBM B637 AMS 5663/AMS 5664/AMS 5667 API-6A |
| Plate, Sheet and Strip | ASTM B670/B906 AMS 5597 |
| Pipe and Tube | AMS 5589/5590 |
| Other Product Forms | ASME Code Case N-62, ASME Code Case N-208, DIN 17744 |
| Welding Product |
AWS 5.14 / ERNiFeCr-2 |
Features
● Good mechanical properties: tensile, fatigue and creep-rupture
● Excellent welding characteristics, resistant to postweld age cracking
● Oxidation resistant throughout its useful temperature range
● Good creep rupture strength at high temperatures
● Higher strength than Inconel X-750
● Better mechanical properties at lower temperatures than Nimonic 90 and Inconel X-750 Age hardenable
● High temperature dynamic applications
Applications
● Gas turbine engine parts
● Liquid fuel rocket motor components
● Springs, fasteners
● Cryogenic tanks
● Rocket Motors
● Space Craft
Keywords: Inconel 718 (UNS N07718)
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Welcome to ZK Alloy, we are professional manufacturer for special alloy materials with twelve years experiences, we mainly produce inconel, monel, hastelloy, high temperature alloy and other nickel based alloy products, which are widely used in aerospace, oil and gas, energy and environmental, automotive, chemical, industrial valves, communication electronics and other industries.
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