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ATI Allegheny Ludlum AL 22™ Nickel-Base Alloy, UNS N06022

Category Metal , Nonferrous Metal , Nickel Alloy , Superalloy
Manufacturer ATI Allegheny Ludlum
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF ATI Allegheny Ludlum AL 22™ Nickel-Base Alloy, UNS N06022.pdf
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Material Notes:
AL 22 alloy is a Ni-Cr-Mo alloy that provides outstanding resistance to pitting, crevice corrosion, intergranular attack, and stress corrosion cracking. The combination of Cr, Ni, Mo, and W provides excellent resistance to a broad range of both oxidizing and reducing environments. Allegheny Ludlum's plate mill has been producing this allow since 1987. The alloy is used in a wide range of applications including flue-gas desulfurization systems, bleaching processes in pulp-and-paper plants, waste incinerators, sour gas service, chemical processing plants, pharmaceutical plants, and radioactive waste storage.The AL 22 alloy possesses high strength, good ductility, excellent welding and forming characteristics. The alloy has been incorporated in ASTM and ASME specifications and is available in a wide range of product forms such as plate, sheet, strip, tube, pipe, bar, billet, and forgings.Information provided by Allegheny Ludlum
Physical Properties Metric English Comments
Density 8.62 g/cc
0.311 lb/in³
Mechanical Properties Metric English Comments
Hardness, Brinell 173
173
Typical; Annealed Plate
Hardness, Rockwell B 87
87
Typical; Annealed Plate
Tensile Strength, Ultimate 724 MPa
105000 psi
Typical; Annealed Plate
Tensile Strength, Yield 345 MPa

@Strain 0.200 %
50000 psi

@Strain 0.200 %
Typical; Annealed Plate
Elongation at Break 67 %
67 %
Typical; Annealed Plate
Modulus of Elasticity 207 GPa
30000 ksi
Thermal Properties Metric English Comments
CTE, linear 12.44 µm/m-°C

@Temperature 20.0 - 217 °C
6.911 µin/in-°F

@Temperature 68.0 - 423 °F
Specific Heat Capacity 0.422 J/g-°C
0.101 BTU/lb-°F
Thermal Conductivity 9.40 W/m-K
65.2 BTU-in/hr-ft²-°F
Melting Point 1388 °C
2530 °F
Solidus 1354 °C
2469 °F
Liquidus 1354 - 1388 °C
2469 - 2530 °F
Component Elements Properties Metric English Comments
Carbon, C <= 0.010 %
<= 0.010 %
Chromium, Cr 20.6 %
20.6 %
Cobalt, Co <= 0.10 %
<= 0.10 %
Iron, Fe 2.5 %
2.5 %
Molybdenum, Mo 13.9 %
13.9 %
Nickel, Ni 60 %
60 %
as balance
Silicon, Si 0.030 %
0.030 %
Sulfur, S 0.0010 %
0.0010 %
Tungsten, W 2.65 %
2.65 %
Vanadium, V 0.16 %
0.16 %
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