Physical Properties of Nickel Alloy 686 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 (x106psi)	Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6)	Thermal Conductivity (BTU-in/ ft2-h-°F)
686	N06686	B619, B626	100,000	690	100	45,000	310	45	45	—	—	30.0	6.7	118

Composition of Nickel Alloy 686 tubing and pipe

Grade	686
UNS Designation	N06686
Nickel (Ni)	Bal.
Chromium (Cr)	19.0–23.0
Iron (Fe)	5.0 Max.
Molybdenum (Mo)	15.0–17.0
Titanium (Ti) Max.	0.02–0.25
Aluminum (Al) Max.	—
Cobalt (Co) Max.	—
Tungsten (W)	3.0–4.40
Vanadium (V) Max.	—
Copper (Cu) Max.	—
Manganese (Mn) Max.	0.75
Niobium (Nb) plus Tantalum	—
Carbon (C) Max.	0.10
Nitrogen (N) Max.	—
Silicon (Si) Max.	0.08
Sulphur (S) Max.	0.02
Phosphorous (P) Max.	0.04
Other Elements	—

Nickel Alloy 686 Product Range

Alloy	UNS Designation	Werkstoff NR.	Specifications*
686	N06686	2.4606	B/SB626, B/SB619

*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.