Inconel 601
Designated as UNS N06601 or W.Nr. 2.4851, Inconel 601 (also called “Alloy 601”) is a nickel-chromium-iron alloy with an addition of aluminum for outstanding resistance to oxidation, and other forms of high-temperature corrosion as well as improved nitriding resistance. It also has high mechanical properties at elevated temperatures. Inconel 601 may be used for industrial furnaces, heat-treating equipment such as baskets, muffles, and retorts, strand-annealing tubes, petrochemical and other process equipment, burner nozzles, gas turbine equipment, superheater tube supports & grid barriers of power plant piping, etc.

ASTM B166 UNS N06601 rod, O.D=50 mm, Inconel 601.
1. Chemical Composition Requirements
| Chemical Composition of Inconel 601 (UNS N06601), % | |
|---|---|
| Nickel | 58.0-63.0 |
| Chromium | 21.0-25.0 |
| Iron | Remainder |
| Aluminum | 1.0-1.7 |
| Carbon | ≤0.10 |
| Manganese | ≤1.0 |
| Sulfur | ≤0.015 |
| Silicon | ≤0.50 |
| Copper | ≤1.0 |
2. Physical Properties & Mechanical Properties
| Typical Physical Properties of Inconel 601 (UNS N06601) | |||||||
|---|---|---|---|---|---|---|---|
| Density | Melting Range | Specific Heat | Curie Temperature | ||||
| lb/inch3 | Mg/m3 | °F | °C | Btu/lb-°F | J/kg-°C | °F | °C |
| 0.293 | 8.11 | 2480-2571 | 1360-1411 | 0.107 | 448 | <-320 | <-196 |
*The mechanical properties of Inconel 601 vary in different product forms or heat treatment conditions.
3. Product Forms & Related Standards

ASME B16.20 R26 ring gasket made from Inconel 601.
| Product Forms | Standards |
|---|---|
| Rod, Bar & Wire | ASTM B166 |
| Plate, Sheet & Strip | ASTM B168, ASTM B906 |
| Seamless Pipe and Tube | ASTM B167, ASTM B829 |
| Welded Pipe | ASTM B775 |
| Welded Tube | ASTM B751 |
