Nickel Alloy 601, also known as UNS N06601, is a nickel-chromium-iron alloy with excellent resistance to high-temperature oxidation and corrosion. It is known for its high mechanical strength and good resistance to aqueous corrosion. Alloy 601 is often used in heat-treating industries, chemical processing, and power generation due to its excellent properties.
Key Features of Nickel Alloy 601
High-temperature strength and oxidation resistance up to 1200°C (2200°F)
Good resistance to aqueous corrosion
Excellent resistance to carburization
Superior resistance to oxidation and scaling in high-temperature environments
Good mechanical properties and readily weldable
Chemical Composition
Element |
Percentage |
Nickel (Ni) |
58-63% |
Chromium (Cr) |
21-25% |
Iron (Fe) |
Balance |
Aluminum (Al) |
1.0-1.7% |
Carbon (C) |
0.10% max |
Manganese (Mn) |
1.0% max |
Silicon (Si) |
0.50% max |
Sulfur (S) |
0.015% max |
Copper (Cu) |
1.0% max |
Mechanical Properties
Property |
Value |
Tensile Strength |
550 MPa (80 ksi) |
Yield Strength (0.2% offset) |
205 MPa (30 ksi) |
Elongation |
35% |
Hardness |
85-90 HRB |
Size Range
Nickel Alloy 601 seamless pipes are available in various sizes, with typical dimensions as follows:
Nominal Pipe Size (NPS) |
Outer Diameter (OD) |
Wall Thickness Range |
1/8" |
10.3 mm |
1.73 - 4.78 mm |
1/4" |
13.7 mm |
2.24 - 5.56 mm |
3/8" |
17.1 mm |
2.31 - 7.82 mm |
1/2" |
21.3 mm |
2.77 - 10.16 mm |
3/4" |
26.7 mm |
2.87 - 11.13 mm |
1" |
33.4 mm |
3.38 - 12.70 mm |
1 1/4" |
42.2 mm |
3.56 - 14.27 mm |
1 1/2" |
48.3 mm |
3.68 - 15.88 mm |
2" |
60.3 mm |
3.91 - 19.05 mm |
2 1/2" |
73.0 mm |
5.16 - 21.34 mm |
3" |
88.9 mm |
5.49 - 25.40 mm |
4" |
114.3 mm |
6.02 - 28.58 mm |
5" |
141.3 mm |
6.55 - 31.75 mm |
6" |
168.3 mm |
7.11 - 35.71 mm |
8" |
219.1 mm |
8.18 - 38.10 mm |
10" |
273.1 mm |
9.27 - 44.45 mm |
12" |
323.9 mm |
10.31 - 50.80 mm |
14" |
355.6 mm |
11.13 - 57.15 mm |
16" |
406.4 mm |
12.70 - 63.50 mm |
18" |
457.0 mm |
14.27 - 69.85 mm |
20" |
508.0 mm |
15.09 - 76.20 mm |
24" |
609.6 mm |
17.48 - 88.90 mm |
Applications
Heat-treating equipment: Furnace components, heat exchangers, and retorts
Chemical processing: Process equipment, piping systems, and heat exchangers
Power generation: Gas turbine components, combustion chambers, and industrial furnaces
Aerospace and marine industries: Engine components and other high-temperature applications
Nickel Alloy 601 seamless pipes are an excellent choice for demanding applications that require high strength, corrosion resistance, and durability at elevated temperatures.
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