Alloy 600 INCONEL® 600 – W. Nr. 2.4816 / UNS N06600 / ASTM B166, B168, B564
Alloy 600 INCONEL® 600
Alloy 600 INCONEL® 600 is a nickel -chromium-iron alloy designed to offer corrosion resistance and high temperature resistance. This alloy features a unique combination of high mechanical strength and excellent machinability . Due to its high nickel content (min. 72%), INCONEL® 600 is highly resistant to chloride-induced stress corrosion cracking and maintains its integrity even in oxidizing and reducing environments.
The addition of chromium provides resistance to oxidizing and sulfurous environments, while iron improves the alloy’s strength. INCONEL® 600 is not precipitation hardenable, but it can be strengthened through cold working.
Due to its versatility, this alloy is used in a wide range of applications, from low cryogenic temperatures up to temperatures above 1095°C.
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Reference standards:
- ASTM B166 (bars and wires)
- ASTM B168 (sheet and strip)
- ASTM B564 (flanges and forgings)
Chemical composition (%)
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 72.0 min |
| Chromium (Cr) | 14.0 – 17.0 |
| Iron (Fe) | 6.0 – 10.0 |
| Carbon (C) | 0.15 max |
| Manganese (Mn) | 1.00 max |
| Sulfur (S) | 0.015 max |
| Silicon (Si) | 0.50 max |
| Copper (Cu) | 0.50 max |
Mechanical properties
| Temperature (°C) | Tensile strength (MPa) | Yield strength (MPa) | Elongation (%) |
|---|---|---|---|
| 20 | 550 – 690 | 170 – 345 | 55 – 35 |
| 600 | 450 | 176 | 25 |
| 800 | 369 | 149 | 22 |
| 1000 | 319 | 124 | 18 |
Heat treatments
- Solution annealing: 1010 – 1150°C with rapid cooling in air or water to maintain corrosion resistance.
- Hot forming: Optimal temperature range between 1040 and 1230°C, with subsequent cooling to avoid carbide precipitation.
- Cold forming: Excellent machinability with a greater tendency to work hardening than stainless steels.
Available formats
INCONEL® Alloy 600 is available in the following forms:
Industrial applications
Thanks to its excellent resistance to corrosion and high temperatures, INCONEL® 600 is used in the following sectors:
- Aerospace and Defense: Aircraft engine components, high-temperature exhausts, turbine seals.
- Power Generation: Heat exchangers, nuclear power plants, steam generators.
- Chemical and Pharmaceutical Industry: Chemical reactors, condensers, distillation towers, evaporators.
- Motorsport: Exhaust systems for racing cars resistant to extreme temperatures.
- Nuclear: Piping and structural components for nuclear reactors.
- Oil & Gas: Hydrocarbon transport equipment, petrochemical process furnaces.
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