High Alloy Materials
Ferritics Alloys S44627

Physical Properties of S44627 Alloys in the Annealed Condition at -20°F to +100°F

    Tensile Strength Yield Strength            
UNS Designation Spec. psi MPa ksi psi MPa ksi Elongation in 2 in. (min.) % Grain Size Req. Max. Hardness Modulus of Elasticity (x106psi) Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) Thermal Conductivity (BTU-in/ ft2-h-°F)
S44627 A268 65,000 450 65 40,000 275 65 12* 95 Rb 29.0 5.2 116

*for 0.049” average wall

Composition of S44627 tubing and pipe

UNS Designation S44627
Nickel (Ni) 0.5*
Chromium (Cr) 25.0–27.5
Iron (Fe) Bal.
Molybdenum (Mo) 0.75–1.50
Titanium (Ti) Max.
Aluminum (Al) Max.
Cobalt (Co) Max.
Tungsten (W)
Vanadium (V) Max.
Copper (Cu) Max. 0.2
Manganese (Mn) Max. 0.40
Niobium (Nb) plus Tantalum 0.05–0.20
Carbon (C) Max. 0.01* **
Nitrogen (N) Max. 0.015
Silicon (Si) Max. 0.40
Sulphur (S) Max. 0.02
Phosphorous (P) Max. 0.02
Other Elements

*Nickel + Copper

**0.015 Max. for OD<0.500" and for T<0.049"

S44627 Product Range

UNS Designation Werkstoff NR. Specifications*
S44627 N/A A267/SA267

*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.

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