Product Information

Composition of Nickel Alloy 20 Pipe and Tubing

UNS DesignationN08020
Nickel (Ni)32.00–38.00
Chromium (Cr)19.00–21.00
Iron (Fe)Bal.
Molybdenum (Mo)2.00–3.00
Titanium (Ti) Max.
Aluminum (Al) Max.
Cobalt (Co) Max.
Tungsten (W)
Vanadium (V) Max.
Copper (Cu) Max.3.00–4.00
Manganese (Mn) Max.2.00
Niobium (Nb) plus Tantalum8xC–1.00
Carbon (C) Max.0.07
Nitrogen (N) Max.
Silicon (Si) Max.1.00
Sulphur (S) Max.0.035
Phosphorous (P) Max.0.045
Other Elements

Physical Properties of Nickel Alloy 20 in the Annealed Condition at -20°F to +100°F

      Tensile Strength Yield Strength            
Alloy UNS Designation Spec. psi MPa ksi psi MPa ksi Elongation in 2 in. (min.) % Grain Size Req. Max. Hardness Modulus of Elasticity (x106 psi) Mean Coefficient of Thermal Expansion ((IN./IN./°F x 10-6) Thermal Conductivity (BTU-in/ ft2-h-°F)
20 N08020 B464,
80,000 551 80 35,000 241 35 30 28 8.3 148

Nickel Alloy 20 Product Range

Alloy UNS Designation Werkstoff NR. Specifications*
20 N08020 2.4660 B/SB468, B/SB464

*Note: The specifications noted including ASTM, ASME, or other applicable authorities are correct at the time of publication. Other specifications may apply for use of these materials in different applications.