Product Information

Composition of 6XN Pipe and Tubing

Grade 6XN
UNS Designation N08367
Nickel (Ni) 23.5–25.5
Chromium (Cr) 20.0–22.0
Iron (Fe) Bal.
Molybdenum (Mo) 6.00–7.00
Titanium (Ti) Max.
Aluminum (Al) Max.
Cobalt (Co) Max.
Tungsten (W)
Vanadium (V) Max.
Copper (Cu) Max. 0.75
Manganese (Mn) Max. 2.00
Niobium (Nb) plus Tantalum
Carbon (C) Max. 0.030
Nitrogen (N) Max. 0.018–0.25
Silicon (Si) Max. 1.00
Sulphur (S) Max. 0.030
Phosphorous (P) Max. 0.040
Other Elements

Physical Properties of 6XN Alloys 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)
6XN N08367 B675 100,000 690 100 45,000 310 45 30 28.3 8.5 116

6XN Product Range

Alloy UNS Designation Werkstoff NR. Specifications*
6XN N08367 1.4529 A/SA249, B/SB676, A/SA312, B/SB675, A269

*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.