Inconel 600 VS Inconel 718
What is Inconel 718 alloy used for?
Inconel 718 alloy is commonly used in the aerospace industry. Engineers are constantly looking to improve the reliability and efficiency of engines, not to mention extend their service life. High-temperature alloys, especially 718 alloy, are widely selected for their balance between cost and performance.
What is the difference between Inconel 600 and Inconel 718?
Inconel 600 has excellent corrosion resistance and formability, making it suitable for chemical processing and marine applications. On the other hand, Inconel 718 has excellent high-temperature strength and creep resistance, making it the preferred choice for aerospace and oil and gas applications.
Is Inconel 718 alloy difficult to machine?
The machining of Inconel 718 presents significant challenges due to its toughness and tendency to work harden. Advanced tool materials and coolant technology, as well as a controlled machining environment, are essential to efficiently machine this material.
How thick is Inconel 718 alloy metal plate?
Inconel 718 alloy metal plate thickness ranges from 0.002 inches to 150 inches.
Inconel 600 and Inconel 718 Specifications
Inconel 600
Inconel 600 is a nickel-chromium alloy that has good resistance to oxidation and corrosion at elevated temperatures. Due to its high nickel content, Inconel 600 has strong resistance to chloride stress corrosion cracking. Inconel 600 is hardened and strengthened by cold working alone, so age hardening is not required. Inconel 600 can operate from cryogenic temperatures to 700°F (370°C).
Inconel 600 Composition
| Grade | Ni | Cr | Fe | C | Mn | S | Si | Cu |
|---|---|---|---|---|---|---|---|---|
| Inconel 600 | 72.0 min | 14.0 – 17.0 | 6.0 – 10.0 | 0.15 max | 1.0 max | 0.015 max | 0.5 max | 0.5 max |
Inconel 600 Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | GOST | AFNOR | JIS | BS | EN | OR |
|---|---|---|---|---|---|---|---|---|
| Inconel 600 | 2.4816 | N06600 | МНЖМц 28-2,5-1,5 | NC15FE11M | NCF 600 | NA 13 | NiCr15Fe | ЭИ868 |
Inconel 600 Melting Point, Density and Tensile Strength
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation | |
|---|---|---|---|---|---|
| 600 | 8.47 g/cm3 | 1413 °C (2580 °F) | Psi – 95,000 , MPa – 655 | Psi – 45,000 , MPa – 310 | 40 % |
Inconel 718
Alloy 718 is a precipitation-hardenable nickel-based alloy with very high yield strength, tensile strength, and creep-rupture properties up to 700°C. Alloy 718 has a slow age-hardening reaction, so it does not spontaneously harden during heating and cooling, and can be annealed and welded.
Inconel 718 Chemical Composition
| Grade | C | Mn | Si | Fe | S | Cr | Al | Ni | |
| 718 | min. | – | – | – | bal | – | 17.0 | 0.2 | 50.0 |
| max. | 0.08 | 0.35 | 0.35 | bal | 0.01 | 21.0 | 0.8 | 55.0 | |
Inconel 718 Melting Point, Density and Tensile Strength
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 825 | 8.14 g/cm3 | 1400 °C (2550 °F) | Psi – 80,000 , MPa – 550 | Psi – 32,000 , MPa – 220 | 30 % |
Inconel 718 Equivalent Grades
| Grade | UNS No | Old British | Euronorm | GOST | Japanese JIS | ||
| BS | En | No | AFNOR | ||||
| Inconel 718 | N07718 | – | – | 2.4668 | – | – | – |
