PCC Energy Group

Nickel Alloy 400

Pipe & Tubing

Product Information

Composition of Nickel Alloy 400 Pipe and Tubing
Grade400
UNS DesignationN04400
Nickel (Ni) 63.0 Min. (plus Cobalt)
Chromium (Cr) —
Iron (Fe) 2.5 Max.
Molybdenum (Mo) —
Titanium (Ti) Max. —
Aluminum (Al) Max. —
Cobalt (Co) Max. —
Tungsten (W) —
Vanadium (V) Max. —
Copper (Cu) Max. 28.0 – 34.0
Manganese (Mn) Max. 2.00
Niobium (Nb) plus Tantalum —
Carbon (C) Max. 0.3
Nitrogen (N) Max. —
Silicon (Si) Max. 0.5
Sulphur (S) Max. 0.024
Phosphorous (P) Max. —
Other Elements —
Physical Properties of Nickel Alloy 400 in the Annealed Condition at -20°F to +100°F
      Tensile StrengthYield Strength            
AlloyUNS DesignationSpec.psiMPaksipsiMPaksiElongation in 2 in. (min.) %Grain Size Req.Max. HardnessModulus of Elasticity (x106 psi)Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6)Thermal Conductivity (BTU-in/ ft2-h-°F)
400 N04400 B725, B730 70,000* 480* 70 28,000* 195* 28 35* — — 26 7.7 168
Nickel Alloy 400 Product Range
AlloyUNS DesignationWerkstoff NR.Specifications*
400 N04400 2.4360 B275, B730
*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.