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Nickel Alloy 625

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Product Information for Nickel Alloy 625 tubing and pipe

	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)

Sizes

Standard Tolerances

Products

Wall

Lengths and/or coils

Grades

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

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 (x10⁶psi)	Mean Coefficient of Thermal Expansion (IN./IN./°F x 10^-6)	Thermal Conductivity (BTU-in/ ft²-h-°F)
			Tensile Strength			Yield Strength
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.