What is the difference between Inconel 600 and Inconel 625?
Inconel 625 alloy is not susceptible to chloride stress corrosion cracking and pitting, making it an ideal choice for harsh marine environment applications. Inconel 625 alloy's oxidation resistance exceeds that of Inconel 600 alloy because of its higher chromium and molybdenum content, which allows it to perform well even in extreme temperatures.
What is Inconel 600 used for?
The alloy's strength at high temperatures and oxidation resistance make it widely used in the heat treating industry. It is used to make reactors, muffle furnaces, roller hearth furnaces and other furnace components, as well as heat treating baskets and trays.
What is Inconel 625 used for?
This alloy is able to withstand a wide range of highly corrosive environments, especially pitting and crevice corrosion. Some typical applications for Inconel 625 include chemical processing, aerospace and offshore engineering, pollution control equipment, and nuclear reactors.
What is the ASTM standard for Inconel 625?
Inconel 625 welded pipe is a solution-strengthened high-temperature alloy suitable for high-temperature and high-pressure applications. Pipes produced to ASTM B444 UNS N06625 specifications are generally seamless.
Inconel 600 and Inconel 625 Chemical Composition
Inconel 600 and Inconel 625 Mechanical Properties
Alloy 600 Mechanical Properties
| Element | 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 % |
Alloy 625 Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.4 g/cm3 | 1350 °C (2460 °F) | Psi – 135,000 , MPa – 930 | Psi – 75,000 , MPa – 517 | 42.5 % |
Inconel 600 and Inconel 625 Main Standards
Alloy 600 Products Standards
Condenser and Heat Exchanger Tube: ASTM B163
Seamless Pipe: ASTM B167, ASTM B829
Welded Tube: ASTM B516, ASTM B751
Welded Fittings: ASTM B366
Round Rod&Bar: ASTM B166
Forgings: ASTM B564
Plate&Sheet, Strip&Foil: ASTM B168, ASTM B906
Alloy 625 Products Standards
Seamless Pipe: ASTM B444, ASTM B829
Welded Tube: ASTM B704, ASTM B751
Welded Fittings: ASTM B366
Round Rod&Bar: ASTM B446
Forgings: ASTM B564
Plate&Sheet, Strip and Foil: ASTM B443
Conclusion
Gnee Steel is a supplier of Inconel 600 And Inconel 625, with products covering tubes, pipes, plates, strips, plates, round bars, flat bars, forged billets, hexagons, wire and extruded profiles. We work with steel mills to provide customers with 625 alloy, and its products meet or exceed many leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN and BS standards.
Gnee Steel stocks and sells Inconel 600 And Inconel 625 tubes, pipes, plates, strips, plates, round bars, flat bars, forged billets, hexagons, wire and extruded profiles. You are welcome to contact us for a quote at any time at ss@gneesteel.com
