What is the difference between Inconel 600 and 718?
The main difference is that Inconel 600 is a nickel-chromium alloy known for its corrosion resistance and moderate high-temperature strength; while Inconel 718 is a precipitation-hardening alloy that has higher strength and toughness due to the presence of niobium and molybdenum. Inconel 600 is used in chemical and furnace components, while Inconel 718 is better suited for high-stress applications such as aerospace and jet engines.
Does Inconel 718 experience work hardening?
Inconel 718 is prone to work hardening, resulting in extremely high temperatures at the tool-workpiece contact surface, which accelerates tool wear. For decades, engineers have been seeking to address these challenges through advanced tooling, optimized cutting parameters, and new machining strategies.
Differences between Inconel 600 and 718
Inconel 600
Inconel 600, also known as Nicrofer 716, Pyromet Alloy 600, and Nicrimphy 600, is a nickel-chromium alloy with good oxidation resistance and high-temperature corrosion resistance. Due to its high nickel content, Inconel 600 has strong resistance to chloride stress corrosion cracking. Inconel 600 does not require aging hardening treatment, as it is hardened and strengthened simply by cold working. Inconel 600 can operate in a temperature range from low 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
Inconel 718 is a precipitation-hardening nickel-based alloy designed to exhibit extremely high yield strength, tensile strength, and creep rupture strength at temperatures up to 1300°F (700°C). Inconel 718 exhibits a slow age-hardening response, thus avoiding spontaneous hardening during heating and cooling, allowing for annealing and welding.
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 | – | – | – |
Why Choose Gnee Nickel Alloy (Supplier Example)?
✅ Large stock of Inconel alloy tubes/bars/plates/fittings/coils, fast shipping.
✅ Factory direct sales, highly competitive prices, excellent value for money.
✅ Comprehensive quality assurance: Material Testing Certificate (MTC), chemical composition certificate, and mechanical property certificate.
✅ Value-added services: slitting, cutting, polishing, surface treatment.
✅ Worldwide shipping, secure and reliable packaging, and provision of export-required documents.
Email: ss@gneemetal.com
Gnee Steel is a supplier of Inconel 718/600 alloy, offering a wide range of products including: seamless pipe (sizes: 4-219 mm; thickness: 0.5-20 mm); welded pipe (sizes: 5.0-1219.2 mm; thickness: 0.5-20 mm); plates (thickness: 0.1 to 100 mm; width: 10-2500 mm); strips; alloy round bars (diameter: 3-800 mm); flat bars (thickness: 2-100 mm; width: 10-500 mm); hexagonal bars (size: 2-100 mm); wire rods; and extruded profiles. We collaborate with steel mills to provide our customers with Inconel 718/600 alloy products that meet or exceed numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS standards.
Gnee Steel stocks and sells Inconel 718/600, pipes, plates, strips, round bars, flat bars, forged billets, hexagonal steel, wire rods, and extruded profiles. Please feel free to contact us at ss@gneesteel.com for a quote.
