PCC Energy Group

6-Moly 6XN

Super Austenitic Pipe and Tubing

Product Information

Composition of 6XN Pipe and Tubing
UNS DesignationN08367
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 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)
6XN N08367 B675 100,000 690 100 45,000 310 45 30 28.3 8.5 116

6XN Product Range

AlloyUNS DesignationWerkstoff 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.