Physical Properties of Nickel Alloy 400 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)
400	N04400	B725, B730	70,000*	480*	70	28,000*	195*	28	35*	—	—	26	7.7	168

*Annealed condition

Composition of Nickel Alloy 400 tubing and pipe

Grade	400
UNS Designation	N04400
Nickel (Ni)	63.0 Min. (plus Cobalt)
Chromium (Cr)	—
Iron (Fe)	2.5 Max.
Molybdenum (Mo)	—
Titanium (Ti) Max.	—
Aluminum (Al) Max.	—
Cobalt (Co) Max.	—
Tungsten (W)	—
Vanadium (V) Max.	—
Copper (Cu) Max.	28.0 – 34.0
Manganese (Mn) Max.	2.00
Niobium (Nb) plus Tantalum	—
Carbon (C) Max.	0.3
Nitrogen (N) Max.	—
Silicon (Si) Max.	0.5
Sulphur (S) Max.	0.024
Phosphorous (P) Max.	—
Other Elements	—

Nickel Alloy 400 Product Range

Alloy	UNS Designation	Werkstoff NR.	Specifications*
400	N04400	2.4360	B275, B730

*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.