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Product Information

Nickel Alloy 625 Pipe and Tubing


  Sizes   Standard Tolerances
Products OD Wall Lengths and/or coils Grades OD Wall Lengths
Pressure & Corrosion Tubing

Meets or exceeds requirements for welded

Specifications: ASTM-B704, ASME-SB704, ASTM-B705, ASME-SB705

1/16" (1.59 mm) to 4" (101.6 mm)

Metric sizes available

0.010" (0.25 mm) to 0.220" (5.59 mm) Random or cut lengths up to 40' (12.9 m)

Coils to 1-1/2" OD

625
<5/8" (15.9 mm) ±0.005" (0.127 mm)
5/8" to 1-1/2" ±0.007"
>1-1/2" (38.1 mm) to 3" (76.2 mm) ±0.010" (0.25 mm)
>3" (76.2 mm) to 4" (101.6 mm) ±0.015" (0.38 mm)
±15% ±12.5% Randoms up to +2" (50.8 mm)

Cuts +1/8" (3 mm) -0"

Coils to 80,000' (24,384 m)


Physical Properties of Nickel Alloy 625 in the Annealed Condition at -20°F to +100°F


      Tensile Strength Yield Strength            
Alloy UNS Desig-nation Spec. psi MPa ksi psi MPa ksi Elongation in 2 in. (min.) % Grain Size Req. Max. Hard-ness Modulus of Elasticity (x106 psi) Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) Thermal Conductivity (BTU-in/ ft2-h-°F)
625, GR 1 (Annealed) N06625 B704,
B705
120,000 827 120 60,000 414 60 30 30.0 7.1 68
625, GR 2 (Solution Annealed) N06625 B704,
B705
100,000 690 100 40,000 276 40 30 30.0 7.1 68

Composition of Nickel Alloy 625 tubing and pipe


Grade 625
UNS Designation N06625
Nickel (Ni) 58.0 Min. (Plus Cobalt)
Chromium (Cr) 20.0–23.0
Iron (Fe) 5.0 Max.
Molybdenum (Mo) 8.0–10.0
Titanium (Ti) Max. 0.40
Aluminum (Al) Max. 0.40
Cobalt (Co) Max. 1.0
Tungsten (W)
Vanadium (V) Max.
Copper (Cu) Max. 0.75
Manganese (Mn) Max. 0.50
Niobium (Nb) plus Tantalum 3.15–4.15
Carbon (C) Max. 0.10
Nitrogen (N) Max.
Silicon (Si) Max. 0.5
Sulphur (S) Max. 0.015
Phosphorous (P) Max. 0.015
Other Elements

Nickel Alloy 625 Product Range


Alloy UNS Designation Werkstoff NR. Specifications*
625 N06625 2.4856 B/SB704, B/SB705

*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.